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MDAC First Listen (part 00101110)

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BigDog said:
Having clean hands when touching your knobs will avoid issues with both breadcrumbs and other contamination! :D
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A pair of these arrived with my turntable ;)

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JohnW said:
Even "If" the we ended up at 88mm then little ventilation is required as the whole chassis of the FDAC is the radiating heatsink area - we will like to avoid ventilation holes on the lid.
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John, sorry to bother again :), any final width/depth specs (if not height) on the FDAC case? Trying to figure out how to transport it - there are rack-sized proaudio bags I could use (that's what happens when you choose an industry-standard size!), but they don't have much depth, so I'm asking what to expect. :)

Thanks.
 
Boozyuzi said:
What's the latest estimate in £££'s for the detox please ? £150 rings a bell..
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Yes around GBP150 - the unit is sold at cost on top of the GBP50 development fee - but the US$/GBP exchange rate fluctuation do not hep :( - we pay for production in US$
 
jirij said:
John, sorry to bother again :), any final width/depth specs (if not height) on the FDAC case? Trying to figure out how to transport it - there are rack-sized proaudio bags I could use (that's what happens when you choose an industry-standard size!), but they don't have much depth, so I'm asking what to expect. :)

Thanks.
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Jiri,

430mm wide, 70mm to 88mm high & upto 350mm deep.
 
hluga said:
Happy guy ! as my pre/amp only have one input i'm waiting for fdac L3 to connect my turntable again !
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I've purchased a decent analogue turntable + Quad QC24 to serve as our reference analogue system - really looking forward to listening to vinyl again - but ATM I'm still struggling to get the system to work well to listen to the Detox...
 
fusion5 said:
Are you talking about the 8200MB?
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Micheal,

No I'm working on modified 8200M's as these where the amplifiers we used in China during the development of the MDAC - but now you mentioned it would have been time better spent trying to coaxes better sound quality from the 8200MB's... :(
 
fusion5 said:
Oh no, I never intended to make you sad :(
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No, its my bad, I've spent about 4 days I can ill afford trying to make 8200M's work well - still its all beneficial as it confirms the simulation results with practice - work relevant to the VFET amps.

I just didn't expect it to be so troublesome...
 
BigDog said:
It appears from the pics posted that John has designed the knob to have knurling which would allow operation with the tip of even an arthritic finger, etc.
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The Detox, the switches and knobs are "recessed" to avoid accidental operation once set... as such, they are not designed for "practical" use :)
 
JohnW said:
I've purchased a decent analogue turntable + Quad QC24 to serve as our reference analogue system - really looking forward to listening to vinyl again - but ATM I'm still struggling to get the system to work well to listen to the Detox...
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Mine is an old thorens td166 mk2 from my dad's system. I will have to buy a new head but it works fine. I'm not ready to move to MC because i prefer to change to panel speakers before. As i'm involved in all your projects/products i'm waiting to have all to choose new loudspeakers.

br/
 
Hi

Good thread here on PFM re free review PDF's. The Hifi+ PDF has interviews with various designers including Rob Watts. His interview was very interesting - he's not impressed by DSD and has plans for digital power amps, ADC and even more FPGA filter taps - 1,000,000.
 
hluga said:
Mine is an old thorens td166 mk2 from my dad's system. I will have to buy a new head but it works fine. I'm not ready to move to MC because i prefer to change to panel speakers before. As i'm involved in all your projects/products i'm waiting to have all to choose new loudspeakers.

br/
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hluga,

I've yet to setup our turntable, inf act I've not even removed it from its carton box. Once thing for sure is that a quality turntable setup gets expensive very quickly when you factor the turntable, Arm, Cartridge (and Pre-amplifier for our comparative listening tests), isolation platform, cartridge scales etc. :(

Don't be scared off by an MC cartridge I've added a balanced "0 Ohms" MC mode to the FDAC so you will not necessarily need the extra (expensive) MC step-up transformers
 
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