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andyr last won the day on April 30 2016

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About andyr

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  • Birthday 30/04/1949

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  1. Count me in, cf! The film crew might have difficulty fitting all their gear into the room, though. Andy
  2. That is beautiful, Tase - I'm curious to know how you made sure you organised the correct offset angle, whilst the adhesive was drying? Andy
  3. Aah, thanks for the update. I had read it might be coming - I just didn't realise it was here already! Andy
  4. My understanding was that the Puffin - though it does its RIAA in the digital domain ... a great concept - only offers RCA analogue out? Andy
  5. Mike, I now use an A2D converter after my phono stage, so I can feed the digital signal directly into the digital input of my miniDSP. The ADC is this one ... https://www.beis.de/Elektronik/ADDA24QS/AD24QS.html Have not come across a phono stage/A2D converter all-in-one. Andy
  6. The 'problem' comes from the fact that some people call the device a 'phono preamp' - whereas the correct name AFAIAC is 'phono stage'. As the article says - this handles a difficult task as it needs to: a. change a MM signal of ~5mV to 500mV (a gain of x100) b. change an MC signal - say, 0.5mV - to 500mV (a gain of x1000). This level of amplification is waaay higher than any power amp or preamp! And, as Mike posted, it's also applying the RIAA correction, to get a 'flat' FR on output. Andy
  7. Just up your alley, @djb! And well timed - for Christmas. Andy
  8. You and me seem to be looking at different things when it comes to the 'strength' of a Kallax unit, twofires. In your orientation whilst, yes, the whole unit is more stable on its side (as you have it) ... the only thing supporting the ends of the top of the frame ... are the 2 dowels at each end. You put a 60kg amp on top (in place of your light TT) - like one other poster has done - and 2 dowels under such a heavy weight is not something I would care to risk. Whereas if the top of the frame was resting on top of the sides of the frame - this would have structural strength. Likewise, the weight of the LPs in each 'hole' is supported by 2 dowels at each end of each shelf - not a good idea, IMO. Andy
  9. Except that you have it oriented the wrong way round - if you are interested in the strength of the unit. Andy
  10. That's a very good question, Tony - I thought you would've had several responses by now. If your Celestion A2s are a difficult load to drive then maybe a different amp would improve your sound? Although the 250w into 8 ohms / 400w into 4 ohms spec suggest the AudioLabs are adequate. In which case, I would suggest trying a new DAC. Topping D70 sounds good IMO - yes, probably cheaper than your Chord ... but that means nothing. Andy
  11. I'm sure it sounds great, Peter - but you yourself said the Trios don't go much below 200Hz. That hole is not something you can solve by 'rearranging' your gear, I suggest? Andy
  12. That's a very interesting question, Peter. I've never come across a 120kHz machine before. My view is that I'd prefer to use a 120kHz machine ... but it might not be any good for cleaning extremely gunky records. OTOH, the 35kHz machine would blast out the gunk ... but I would fear it is damaging the grooves. Andy
  13. You're asking me of all people to advocate for glue, Steve? A wet/vac RCM - such as the manual Nitty Gritty I used for 20 years - does a great job. I would need to see a high-power magnification of the grooves after a glue (or RV) clean before I can believe they do a 'good job'! I agree with your cost comparisons. But you'd be lucky to get a working us tank for $400 - so, yes, they are out of reach for some. My view is that a 1 micron filter (minimum!) circuit is required for us cleaning to be optimal - unless you have a vac m/c to dry the LPs. Andy
  14. Then he has the wrong end of the stick! The higher the cavitation frequency, the smaller the bubbles and the gentler the cleaning action. This is simple fact. Andy
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