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World Mail April 2010 issue
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Your experts are - DP David Price, editor; NK Noel Keywood, publisher; PR Paul Rigby, reviewer; TB Tony Bolton, reviewer; RT Rafael Todes, reviewer (Allegri String Quartet); AS Adam Smith, reviewer; DC Dave Cawley, Sound Hi-Fi, World Design, etc.
Denon DP-100M turntable in a beautiful Macassar veneered plinth, built by Paul. ROLLS ROYCE QUALITY I’ve attached some images (apologies if the resolution is poor) of a turntable surround ‘what I made’. Sans surround, the innards of the Denon DP-100M turntable are on view - whilst the technically minded would not be too concerned about this, the domestic acceptance factor is, well, low. The only solution was to try myself. With the help of a very good friend who possesses a few woodworking tools, we designed and commenced making the surround you see, from MDF. With rigorous application of the ‘measure twice, cut once’ rule, we made a snug fitting surround, which was close to the plinth but not too close – the plinth is separated from the base frame for isolation purposes – a chafing surround would not be good! I secured some lovely leaves of veneer from a company called Nantwich Veneers (www.nantwichveneers.co.uk) and then took the naked MDF surround to Chapman and Cliff (www.chapmanandcliff.co.uk), where it was expertly veneered and received eight coats of lacquer at the hands of two Rolls Royce trained craftsmen, who worked on the bespoke, custom line for Rolls. Part of my delight comes from the fact that the customer service at both establishments was superb – they were delighted to help and interested in the project. Messers Chapman and Cliff would be more than happy to entertain similar requests for help (their website majors on car restoration – not surprisingly – but don’t be put off) and will accept items through the post, as appropriate. I must stress I do not work for either company...I just wanted to share an experience where the result vastly exceeded my expectations.
Email I like and use. But shopping is starting to send me crazy. I’m now thinking of the internet as some sort of shopping myth. Take my experience of trying to buy some loudspeakers. First of all my ‘popular’ search engine now tries to predict what I’m typing and puts me off. It’s slower to load, and it’s busy recording for posterity all the things I’m searching for. What it doesn’t record is that I often give up because it can’t find what I want and I don’t bother going further, actually into sites. If I enter something like ‘buy xxx loudspeaker’, it comes up with (identical) pages of price comparator sites. Totally useless. One comparator site, maybe, but there’s no point having several. What would be more useful is if it gave me a list of shops where I can buy xxx loudspeakers, their prices and websites. Then I find that goods labelled ‘in stock’ often aren’t. Goods are very often ‘available to order’, which is becoming much the same as goods being ‘made to order’. The wait can be considerable. Speakers which are ‘available in four colours’ aren’t. If they are in stock they’ll be available in black. This is said to be the most popular colour. But I ask, would it be the most popular colour if there were a choice? Internet prices are cheaper? Not always they’re not, no. Even if they seem to be, it’s not always easy to compare like with like. There are often lots of hidden factors to take into account. Delivery costs. Waiting time. Lack of accessories. Goods which are ‘cheaper’ because they’re ex-demo, or old stock. No, the real world prices are actually in the shops. See what you want in a shop, and that’s what you pay. Then there’s the actual ordering of the loudspeakers. Some firms ask me to register with them before ordering. This reminds me of having to take the register at school, which is equally as useless a pursuit. Why do it? Certainly they need to know my name and address in order to send me goods, but registering? And have you ever tried to delete your name and address from computer records? Even if it does seem to have happened, some time later up your name and address pops and there’s a leaflet through your door, or an email awaiting. There are other considerations: I’ve had my bank account details stolen via the internet in the past, so I now prefer to phone orders through. First I try to find a contact number. Not always easy. Many websites, when I click on their Contact button, bring up a form to fill in, expecting me to ask a question that way. No contact address. No phone number. No sale. If I do manage to obtain a phone number it has often meant, glory be, that I get to speak to a human being. After explaining I’ve seen loudspeakers advertised on their website and why I prefer to phone an order in, three firms have told me they don’t take orders over the phone. Unbelievable in this day and age. More technology, but it’s harder to achieve what I want. No sale. Now how about this as a method of buying: several loudspeakers, particularly floorstanders, are now labelled ‘Available for delivery to store only’. Right, so here’s the plan. I’m expected to buy the loudspeakers over the internet, pay for them online without seeing or hearing them, and then go to a (‘local’) store to collect them. Excuse me, didn’t we use to have this wonderfully simple system before? I go to a local store, I see some loudspeakers, I hear the loudspeakers, I pay for the loudspeakers and I take them home with me. Obviously that’s too simple for this technological world. At present I am using a Musical Fidelity X-A1 as the amp, as I have always liked its sweet, open sound although it is lacking somewhat in the lower registers and I would like to address that. It does, however, have a pre-amp output so I could always simply add a decent power amp to it (along the lines of a Quad 909, maybe) and to some extent this is my preferred direction to go in. I listen almost exclusively to jazz from the forties to mid-sixties (with all their attendant recording idiosyncrasies). Obviously the sound must be acoustically faithful to the recordings, have a good tonal balance and resonance and, above all, swing musically. Naim Nait 5i, a clean, modern, punchy sound from a small package. My feeling here is to keep it simple and get either a Leema Pulse or a Naim Nait 5i. The former has a lot onboard, including a phono stage. But these amplifiers are very different in nature and you really do need to find a dealer who can allow an audition, in a shop or at home. The Leema is clear and bouncy, with quite obvious but nice treble, and plenty of bass. The Naim is a bit more considered, with a darker sound and again plenty of low end push. Whilst I'd be tempted to say the Leema is the best bet, the recent arrival of the Sugden Mystro has muddied the waters somewhat! The A21 S2 was never on the cards with the Ruarks; it's too weak kneed, I'd suggest, but the new Class AB Sugden has plenty of poke and a presentation that's brimming with life and bounce. The Leema is a little warmer, perhaps, with a touch more power, but isn't quite as riveting to listen to. Either of these would be ideal, depending on your tastes. DP The front end is a Linn LP12, serial number 037862, that has been with me since the early 80s (updated with Circus and Origin Live DC motor). Arm is a Hadcock 228 Super, one of the early arms from the late George Hadcock, (circa 1979) with a Music Maker Mk3 cartridge. Speakers are World Audio Design KLS 9. Cables and interconnects are all quite adequate. The addition of the valve amplification made an enormous improvement to the sound, leading me to many late nights playing just one more LP. I particularly value the detail, space and emotion that this lot provides. I like the music that the Hadcock (old as it is) with the Music Maker produces, it is lyrical and beguiling but may lack some detail, bass tightness and extension, possibly due to the arm. It does, however, seem to suit the Linn well and I am certainly used to setting up this arm. I had thought of putting an Origin Live Encounter on the Linn using the Music Maker for the time being, then perhaps adding an Ortofon Cadenza at a later date. However, is the Encounter a match for the Linn or should I bite the bullet and change the Linn for a Michelle Orbe with Origin Live Encounter, using the Music Maker for now? You may have other suggestions of arms to put on the Linn. I am reluctant to go via the Linn Keel/Radikal route as I feel that Linn are Taking the Michael with the price they are charging for this. I use a Moth record cleaning machine to keep 1000+ LPs in as good condition as I can. These range through rock, folk and classical. I do have a CD player and tuner but these are secondary to LP. The budget for these improvements is up to £2500 but I could at a pinch stretch to £4000. Audio Origami Uniarm suits a Linn. This is a tricky one, as your choice of arm depends on your choice of turntable. Whilst a good combination, there is more synergy between Michell decks and Origin Live arms than with Linns. So if you want to keep your Linn, I’d counsel an Audio Origami Uniarm, which is the unipivot version of the PU7, or a Naim ARO (if you were to go for an MC with Linn geometry). These both work brilliantly on the LP12, the combination being as they say greater than the sum of the parts. The sound will be sweet, lyrical, tonally rounded and very engaging on an emotional level. Moving to a Michell Orbe with Origin Live 'Encounter' arm, and you’d get a more widescreen presentation, with a more complete picture of the recording, a stronger and deeper bass, more sparkling highs and a greater sense of absolute dynamics (although the LP12 is brilliant at small dynamic inflections). Whilst I’m not a great fan of the Music Maker, I can see why many are (it does what it says on the tin, albeit at the expensive of finesse). So think carefully about changing it; you may be disappointed. Personally, I’d go for a Lyra Dorian MC for its amazing detail and energy, but I realise that’s not a universal panacea, and many would see an Ortofon Cadenza Blue as a more sensible choice. In your situation, perhaps the best way to get there from here would be to keep your LP12, as you obviously love it, and improve on it with a Cirkus upgrade, whilst avoiding the Keel for cost reasons. Fit an Audio Origami Uniarm (or Naim ARO) and then decide if you’ve got what you wanted. If not, it would be time to ‘move platforms’ to the Michell, taking the arm with you, and then come back to us for more advice. DP CRAZY HOBBY Controversially, my actual system is built around components that have never been reviewed by yourself. I think this is the ultimate proof that good quality journalism is not biased by commercial elements. So, please take this as a compliment. To give you a flavor, I use Analogue Audio amplification and CD player, the Maestro 200 integrated and Maestro 192 CD player. The choice of amp has been heavily influenced by your reviews of Sugden, Jungson and Icon Audio 845 the CD player as a package deal is the first item ready for future upgrades but still a very natural and fine match using Synergetics XLR interconnects. My speakers are ProAC D80, not to criticise but I have really missed ProAc in your magazine. In my opinion they are simply the single best speaker in the world and the D80 has it all. As for analogue I have a Gyro SE with Never Connect power supply, a Koetsu Black, Techno arm and a battery phono stage from Nagra. This is a killer combination and I think it will be very hard to get comparable results from digital. Suggestions from your side for future improvements are welcome, but I will never leave the Koetsu as this has added a sense of musical magic incomparable to anything else I have experienced ('heard' would be the wrong expression here). It is only recently that I have started experimenting with clean power and the main reason for my letter is why has Hi-Fi World never looked into clean power solutions (or I have missed it completely). I have bought an active power regenerator from a brand called PurePower from Canada. I was very sceptical as enthusiasts told me I would loose on dynamics and musicality. Now, after a week of listening I can only tell this is the single biggest “upgrade” I have ever made. As I am not a writer I will refrain from trying to describe differences but I can only tell I keep listening to my music collection and I have suffered from serious fatigue since this device is on my rack. Next up is a room correction system (another controversial I would like to see your respected opinion on). Pure Power 2000 mains conditioner from Canada was "the single biggest upgrade" says Bert van Dijck. Hi Bert. Thanks for your letter and observations on the importance of clean mains power. Many readers have expressed a similar view, that improving the quality of mains power makes a big difference to sound quality. Hi-Fi World suffers a small disadvantage here in that its offices are based in a part of London that seems to have a clean, high voltage supply and we had a long explanation about this from reader and EDF engineer James Watson in our February 2010 issue. However, a manufacturer of World Audio Design output transformers who also makes mains distribution transformers explained that rural supply lines were often long, subject to heavy industrial and agricultural loads, and noisy as a result, and more in need of supply conditioning. As our editor, David Price, has just moved to such a location perhaps he will be letting us know more about all this in the near future. NK The flat earth end is a venerable Technics SL-BD21 with an Ortofon OCP-20 (T4P). The silver disc is a Rega Planet, used as a transport and a Tom Beresford off-board DAC which has been modified by AudioUpgrades with a custom designed power-supply and better components. A Musical Fidelity X10D sits between the DAC and the pre-amp. Lastly, I use a rather nice pair of B&W DM602 S3 standmounts mounted on Apollo Olympus stands. The whole thing is connected using Chord Odyssey 2 cables and Chorus interconnects. Now the thousand dollar question: can you suggest which component I should change to produce a clear but airy treble, warm but informative midband and tight bass? I find the B&Ws have a slightly etched, cold treble that whilst revealing is not what I’m looking for. I have a large collection of CDs and a fair bit of vinyl. My musical tastes are largely Classical but I do listen to other genres as well. I am happy to consider older equipment and would prefer to keep costs reasonable. I might be able to afford a higher budget but the maximum I would have to play with is £2000 and this would not be for the next four years. Your thoughts and advice are very welcome. Monitor Audio RX8s, a great modern sound for £999, says Noel. Hi Nigel. You say the B&W DM602 S3s are "rather nice" but you don't like the cold treble. B&W pulled the treble down a bit and smoothed it too, in the B&W CM9 (reviewed in our December 2009 issue) and the CM5 standmount is similar, so you might well find this is just the sound you are looking for. B&Ws are on the bright side though, as are most loudspeakers these days. Alternatively, try auditioning a few Monitor Audio loudspeakers. The new floorstanding RX8s (£999) were pretty impressive I found, when I reviewed them in our January 2010 issue. NK I was thinking of buying new 'speakers, a pair of Cremona Auditors M series as I thought the Ruarks were too big for my room, 13ft x 10ft. How do you think matching the Sonus Fabers and Musical Fidelity will sound? After all I paid just £500 for the Ruarks and they are going on for 10 years old now and I don't think it would be proper to replace just one driver and have the possibility of a failure in another over time. I don't mind forking out on decent speakers as I would like a pair that I can grow old with. Also, I plan on holding on to my Nu Vista setup as I have contacted Musical Fidelity on having the units upgraded. Rest of my setup is VPI Scout turntable with a Goldring 1042 cartridge, A5 tuner and Nakamichi DR-3 cassette deck and Tci cables. Sonus Faber Cremona Auditors are what I want, says Alan. Hi Alan - well, it seems you just want me to give you the green light for the Sonus Fabers, don't you? The trouble is, the best I can really do is go to orange! Yes, they're superb speakers, excellent in their price bracket - but only if you like that sort of thing. The trouble is, the difference between the Cremonas and any of the handful of excellent price rivals is like that between £35,000 cars. Do you want the silkiness of the Jag, the tautness of a BMW or the go-anywhere capability of the Landrover Discovery? My point is simply that you need to try a range of options first; just buying 'sight unseen', as it were, is like buying a new car online then finding you can't reach the pedals when it's delivered! I can merely speculate that the Sonus Fabers should be a good general match. The Musical Fidelity amplification just errs ever so slightly on the warm side, whereas the Sonus Fabers are a teensy bit on the dry side. You should end up with a nicely balanced combination. The only thing that worries me in theory is that you've come from Ruarks, which have an altogether more visceral sound; less subtle and delicate, more emotive and bombastic. If you liked their character when you bought them, I wonder if you'd find the Sonus Fabers a little cerebral now? They are very much a clean, dry, super finessed speaker that excels on classical music but lacks the heft or exuberance for the likes of rock or pop. If you've set your mind on them, and have actually heard them elsewhere already, then go ahead and come back to us with your thoughts; we can then tune the rest of your system to give its best with the new loudspeakers. DP OLD BUT GOLD Lets take a few things that are significantly older than vinyl LP yet are not looked at in this way. The Pneumatic tyre is older than vinyl LP yet we still use them on almost all motor vehicles. If we look at the house we live in, they use stone or brick walls with wooden floors and tiled roofs, as in Roman times! If we look at modern materials like Titanium, the fourth most abundant metal on this planet, how old is Titanium? We can go back to the Big Bang! Most musical instruments work on vibration, vibration of the materials as in such musical instruments as guitars, violins, drums etc. For me, when I put an LP on a good record player I’m not counting how many numbers it took to make the music work, I just put on an LP record and enjoy. Analogue in all it’s forms and including the vinyl LP is here to stay? Because numbers don’t make music, people do with their voices. instruments, timing, humor etc. The amp: Sansui 70 watt-per-channel, solid-state stereo receiver (model 4000) from 1970. I bought this at a charity shop for $20 U.S. It was a rare to find one with the then-optional wooden cabinet still on it - and even an envelope containing the schematic diagram stuck underneath. All the caps in the preamplifier stage I’ve replaced with 1% tolerance, metal polypropylene-type (for the high frequencies) and all tantalum-type for the rest (though, for the power section, I did use Cornell Dubilier high ripple electrolytics). I also replaced all of the point-to-point connections with at least 16AWG automotive-grade primary copper wire (I’ve figured out that much of the reason even decent built 1970s-era kit sounds crummy was because they all used cheap, 24AWG aluminum wire for internal connections ... which does not take solder well and just seems to disintegrate over time. I replaced the power cord with a three-prong, 14AWG grounded one and in the future I plan to replace all the input/ EQ stage resistors with VISHAY 1%, 1/2 watt metal film-type.
Sansui 4000 receiver from 1970 and Ampex tape deck from 1966, both restored, are used by James Hoover in New Jersey. The tape deck is Ampex stereo, auto reverse, solid-state reel-to-reel recorder (model 900) from 1966. I got this at an antique radio fair for $10 U.S. Ampex was the name in high-end (American) analog recording equipment (like Studer/Revox was in Europe) from 1947 to 1984. Now, my machine is a far-cry from the 10 1/2 reel studio units they specialized in; but, none the less, anything made by them is hard to find. Japanese brands dominated the tape recorder market after 1968. I’ve learned that this model was/is supposed to be a “portable” (but it weighs 40 lbs!) and it was originally priced at $349.95 (in 1966 American dollars). Again, like the Sansui, I replaced all the capacitors in the preamplifier and power supply sections; as well as a belt for the [dual] capstan idlers – the main problem with it in the first place. I play the 50 or so pre-recorded tapes (of Sixties albums and film soundtracks) my father left me. He had the reel format version of the Sergio Mendes/Brasil ‘66 record you have on the Beocenter combo unit. I love that late ’60s Bossa Nova and even Herb Alpert’s stuff ... I’ve got every album of his Tijuana Brass on open-reel! The turntable: Technics Direct-Drive (model SL-1700) “disco” turntable from 1977. I bought this at the same charity shop, for $25 U.S., I’d later get the Sansui from. This, save for the cartridge and stylus, was in the best overall condition out of the three. I once found a new-old-stock supply of bargain Empire MM cartridges so I just replaced the damaged Shure M91 already on it (I’m not particular about needing some esoteric, MC cartridge because I consider the vintage tape as my main source). The only “tweaking” I’ve done is that I took the bottom off to unsolder the standard patch cables and replace them with a spare pair of Monster ones I cut up. The 'speakers are the only “new” thing in my system: a pair of mid-nineties JBL LX500, three-way, bookshelf-type. I mean, everyone is talking-up Ken Ishiwata’s 30th year with Marantz; however, does anyone remember that they’d gone really downhill in the 1980s? It wasn’t until Philips invested into them in 1991 that they, again, started making quality consumer gear (a lot of Marantz stuff from the ‘80s had a gold-painted, plastic fascia with a cardboard masonite pan!). Here in Ireland there were no proper hi-fi shops, and coupled with the fact that I was broke most of the time, were it not for the move to London, it was an interest and hobby that might never have happened. It was strange, how walking into a proper hi-fi shop on Buckingham Palace road in 1990 had me feeling like a kid in a sweet shop. I wanted to listen to everything that they had, in every combination, despite the fact that I couldn’t afford most of it. The owner played me a piece of piano music on a turntable through a pair of Castle Chester speakers, and that was it, I was hooked. I thought it was the most incredible thing I had ever heard. Back in the real world though, I decided on a pair of Castle Warwick speakers with a little JVC CD player and a Creek 4140 amp, and so the hi-fi hobby began. I didn’t go crazy with constant upgrades, and I can tell you that had more to do with financial constraints than anything else. I kept the components for two or three years and upgraded slowly. It was the mid nineties when I started to get serious, and following the purchase of a new Linn Karik 3 to match the Wakonda and LK100 I had bought some months earlier, I realised that my speakers, which were now B&W P4s, were not delivering the goods. What to do, I wondered? By the time the show had come around I had completely forgotten about the KLS6s, but here is the strange thing. I was walking down one of the corridors on the way out of the hotel feeling disappointed that I hadn’t discovered what I wanted when I passed this room with some music playing. At the end of the session half of them left, so I squeezed in and grabbed a chair for the next demo. And then it hit me, I thought: those speakers look familiar, where have I seen these before? I couldn’t believe it. Quite by accident I had stumbled into the KLS6 demo, and I thought this is unbelievable. I was absolutely captivated by them, and within two minutes I had decided I was going to build a pair, and I did. I remember driving to your workshop in the basement of some building, and collecting all the components, I can’t even remember where it was, and two weeks later I had a pair built. All I need now is a Numerik DAC to top it all off. I know, fourteen years after buying the Karik, as you can see I don’t rush things. As you know those Audax tweeters are impossible to get, and as I see it, the only option is to replace them with a different tweeter. It is strange that it is the one design that is never mentioned. I have considered buying the equipment to test the new driver myself, and using lspcad to design the crossovers, but this is unknown territory for me, and I wouldn’t be at all confident of success. All things considered I would much rather do something with the KLS6s and I am open to suggestions no matter how crazy. I just want my KLS6s back to good health. The World Audio Design KLS6 loudspeaker, with Audax High Definition Aerogel drive units and Audax HD-3P Gold Dome piezo, gas filled tweeter. Hi John. What a heartening tale! The article you missed was in our June 2008 issue, on p80. Unfortunately, this detailed how to substitute a SEAS Millennium for the Audax HD-3P Gold Dome in KLS3, where it crossed over to an Audax HM130CO 5in carbon fibre bass/midrange unit. In KLS6 we used Audax High Definition Aerogel units (DIY Supplement No16, August 1995), the midrange being an HM100ZO. I suggest you use the SEAS Millennium tweeter and the high pass section feeding it, shown again here. The low pass feeding the midrange unit of KLS6 reached higher than that of KLS3 and the match is unlikely to be perfect. It is difficult to predict the result, but there is a likelihood of excessive treble. If this is the case, best to try reducing the 4.7uF capacitor to 3.3uF or so, and altering the resistor in front of it, in the range 0.47 -1 Ohm. It isn't possible to sort out a perfect match without measuring equipment and lspcad will not on its own be sufficient. A measuring microphone is the crucial requirement and Clio make an inexpensive one (£220), but it needs a preamp. This would then run into a computer sound card or audio input. It is then possible to play white noise from the computer, through the speakers and run spectrum analysis of the signal on a computer, using free Audacity software. Audacity will generate white noise and spectrum analyse it. It isn't too difficult or expensive nowadays to make this sort of measurement to a useful degree of accuracy. You need to get into the right ball park, as it were, then fine tune by ear. Audax HD-3P piezo Gold Dome tweeter (with crossover), filled with gas. Highly expensive and leaky, but sounded fabulous! I'm glad you like KLS6. It used super high quality Audax drive units and we tried to get maximum midband transparency by using an open back midrange. Sadly, there is no equivalent to the (hugely expensive) Audax HD-3P piezo Gold Dome tweeter. Modern ribbons are less forgiving in their sound. You will not find Monitor Audio PL200s have the same tonal balance as KLS6 (we designed for accuracy; our loudspeakers did not have to compete in a showroom) nor the lack of tonal colour exhibited by the KLS6 High Definition Aerogel midrange unit. So you should try and keep them running if possible. I'm glad they have provided so much pleasure over the years. NK
A high pass filter section for the SEAS Millenium tweeter, when used in KLS6. Values will need adjustment. DISTORTION My Linn LP12 with Basic Plus (circa 1984) and Goldring 1042 manages to track even the “torture tracks” of the HFN Test record (even though long overdue an upgrade in the tonearm department), but judging by Andy’s letter an upgrade may make no difference to these particular LPs. However, I have decided (not too reluctantly) that an upgrade would possibly be beneficial. I have a budget around £1000 and have considered arms such as Hadcock GH228 export, Clearaudio Satisfy (carbon) and Origin Live Encounter (all new). Advice from various forums has warned me off the purchase of second-hand Linn arms (Ittok, Ekos) due to possible bearing damage; also opinion on the Akito (comparative value for money) is not encouraging. Unfortunately, I will not have an opportunity to audition tonearms in my setup prior to purchase and will therefore need to rely on others expert advice. I am currently recording some of my vinyl to hard disc, using a cable from the ‘tape out’ on my amplifier to the ‘line in’ socket on my laptop. This introduces background noise again (a grounding issue?). I can record on battery power with a silent background, but that only allows me to record a single side of an LP before I have to recharge. I have done a bit of searching around on the internet and have not found any useful advice, apart from some American forum where it was suggested that I disconnect the ground wire in the laptop’s mains plug. Will this help with the noise? And, more importantly, is it safe? My turntable is a NAD 533, which does not have a separate ground wire, which might be a factor, but I am pretty much an electrical ignoramus. Chord Electronics Chordette Gem can receive music by Bluetooth wireless link from a computer. According to the product brochure, the Logitech works on a Bluetooth connection. Would this be able to connect to one of those new Chord DACs with the Bluetooth aerial, if I decided to upgrade? The Logitech receiver is okay, but doesn’t sound quite as good as my old DAC (background noise aside) and the Chordette Gem does look a very tempting upgrade. We use the standard pairing procedure which requires the source product to search for a Bluetooth receiver then it connects using a 4 digit pairing code. This can be done automatically so the Gem will work with products that seek out a Bluetooth device then try different pairing codes until connection is successful. I can’t tell whether the Wireless Music Sender can work in this way but perhaps someone from Logitech can confirm this. The 'line-in' socket of a laptop will go through a low grade Analogue-to-Digital Convertor (ADC) and you can't expect great quality as a result. You must route the signal in through a decent external ADC. NK During my annual clean up cycle when I check and clean all power plugs and audio connections, I decided to conduct a listening test with various power conditioning devices in the chain, from simple surge protection and clamping to more sophisticated RFI filters and various combinations. The over-riding conclusion was that all the devices had some impact upon the sound, but not always a positive one. Generally speaking, any sort of filtering tends to have a slight softening or compression affect upon dynamics while strong or multi-stage filtering can also have a detrimental affect upon the perceived soundstage, sometimes tending to suck the sound back into the speakers rather than presenting it outside of the speakers. On the positive side of the equation, subjective noise floors could certainly be lowered, but at what cost? I concluded that a very low level of filtering offered the best compromise (such as might be obtained via a simple RFI filter), cleaning the overall sound but without unduly affecting dynamics. The interesting thing being that altering the mains power “waveform” in any way should have such a noticeable affect upon the sound of the affected components. Like most things in audio, the results are somewhat subjective. Experimentation and objective listening being the key. Here is my current system: Systemdek IIXE with acrylic platter, RB300, Nagaoka TS11, Arcam Alpha 5+ CD, Musical Fidelity A1, Mission 752 (original). Cables are Atlas Questor and Monster Z2 reference. My room is 12’ by 21’, with speakers firing across the short axis. CD and turntable take a fairly even share of source duties and my musical tastes are extremely wide! My current budget for upgrades is around £600 (possibly more will be available later) and my thinking is that turntable, arm, CD player and speakers are being held back by the amplification and cartridge, so what would you suggest? Also, which cartridge would you recommend and is it better spending £200 (approx) on the cartridge (i.e. Goldring G1042) or would I get a better return out of a cheaper cartridge (Ortofon 2m Red?) and fitting a Technoweight/wiring mods to the Rega? Paul Tuerena Audiolab 8000S is a power house our tests showed. The Musical Fidelity A1 amp is a fine partner to these sensitive, smooth Mission floorstanders but the Audiolab 8000s will give more punch; it is considerably more powerful. The Auditors are long gone from my main system (they do a fantastic job in the kitchen) and, inspired by your magazine and a local master-tweaker, I am now on the verge of completing a lovely sounding ‘retro’ system. It includes a pair of Quad ESL57s (tweaked, on custom-made stands), refurbished Radford STA25, Audio Innovations P2 phonostage, L1 preamplifier (I alternate the latter with a Creek OBH-22) and a souped-up Esoteric P–500 transport with matching D–500 DAC. To complete this set up I have recently acquired a Garrard 301 (in a sturdy hardwood plinth) and a Hadcock GH228 tone arm (early model; rewired). Cables are a mixture of Goertz Alpha Core (speaker cables), high purity silver/copper interconnects and improved mains cables. The whole set up is supported on a Lovan stand with Mikado isolation cones. Garrard 301 deserves a fine arm and cartridge, better than a budget moving coil, says Noel. With its refurbished components, new tubes and careful set up, I find this system to be miles ahead in terms of musicality and sheer enjoyment compared to my previous ‘up-to-date’ system. The last piece of the puzzle is choosing the cartridge to go with this system. I’m currently using an ageing Denon DL-305 (the previous owner advised me it was professionally re-tipped with a parabolic tip). The Denon does the job, but I suspect it lets the side down in terms of resolution and dynamics. As my budget is limited at present to $A800.00, do you think I’ll be better off saving for a top-notch Moving Coil cartridge in the future, or would I gain significantly from purchasing a modern, entry-level MC cartridge (reading your magazine for few years now, I had the AT OC9 ML II in mind)? I listen mainly to Jazz, Classical and pop/soft rock music. |