Re: [SlimDevices: Touch] Touch and dac

2015-03-10 Thread garym

nervoteso wrote: 
 I don't know, touch is connected from its optical outp to optical denon
 inputs

Then you're already NOT using the Touch's DAC. You are instead using the
Denon's DAC.  And if you add a DAC in between the TOUCH and the Denon,
it will still be using the Denon DAC unless the Denon has a pure analog
pass-thru capability (and as pointed out, many AV receivers do NOT have
this option).

p.s. I have a Benchmark DAC I (which is a highly rated DAC) connected to
one of my Touch players. In a (single) blind test, I can't detect which
DAC is being used (touch vs benchmark). I agree that the Touch DAC seems
quite good.   (the main reason I'm using the Benchmark is so that I can
use the BALANCED ANALOG OUTs  of the Benchmark instead of the unbalanced
analog out (rca) of the TOUCH.



*Home:* VortexBox 4TB (2.3)  LMS 7.8  Transporter, Touch, Boom, Radio
w/Battery (all ethernet except Radio)
*Cottage:* VBA 3TB (2.3)  LMS 7.8  Touch  Benchmark DAC I, Boom,
Radio w/Battery (all ethernet except Radio)
*Office:* Win7(64)  LMS 7.8  Squeezelite
*Spares:* Touch(3), Radio(3), Boom, SB3, CONTROLLER
*Controllers:* iPhone6  iPadAir2 (iPeng8  Squeezepad), CONTROLLER, or
SqueezePlay 7.8 on Win7(64) laptop
*Files:* ripping: dbpoweramp  FLAC; post-rip: mp3tag, PerfectTunes;
Streaming: Spotify

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Re: [SlimDevices: Touch] Touch and dac

2015-03-10 Thread jfo

garym wrote: 
 Then you're already NOT using the Touch's DAC. You are instead using the
 Denon's DAC.  And if you add a DAC in between the TOUCH and the Denon,
 it will still be using the Denon DAC unless the Denon has a pure analog
 pass-thru capability (and as pointed out, many AV receivers do NOT have
 this option).
 
 

And if it does not have pass through, then of course there is no point
in changing from your current setup, if you need to continue using the
AVR. Putting analog into the Denon will just convert to digital so that
the AVR's digital processing can be done, and then back to analog with
the Denon DAC. This assumes your model does some type of DSP, etc.



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Re: [SlimDevices: Touch] IR sensor ALMOST dead - any cure?

2015-03-10 Thread paf

fcm4711 wrote: 
 ... it's the same / similar little module that was used in SliMP3,
 Squeezebox 1 and 2, SB Classic, SB Boom, Transporter, SB Radio and Smart
 Radio too. The module itself only filters out the IR carrier which is
 around 38kHz.
 If you have ruled out other sources that might interfere with IR like
 neon lights, TV sets, etc.
 ...
 After that I would try to replace the IR module with a similar one. They
 all seem to have the same pinout.
 Pin 1 = IR out
 Pin 2 = VCC
 Pin 3 = GND

I have opened my Touch and measured the signals on the IR module.
Results:

- the VCC is AWFUL, terrible ripple at high frequency. Maybe because
  the wifi antenna is just next to the IR module?
- the IR out reacts correctly when the remote is sending, even at
  distances where the Touch doesn't react to commands
- the IR outs is active all the time, i.e. it modulates even when
  the remote is not sending (even when I switch off all lights in the
  room)
- the remote works better when the oscilloscope is connected between
  GND and IR out
  

Well, I see two possible causes:
  
- the IR module is somehow half-dead and sends all the time scrap to
  the decoding chip, which has problems with that. Solvable by replacing
  the IR module (i have alread some replacements modules, but the have
  the wrong pinning... GND and VCC inverted)
- some decoupling capacitors are dead and there is too much ripple
  everywhere in my Touch - hopeless
  

Any opinions / clues?
Regards
Patrick



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Re: [SlimDevices: Touch] Touch and dac

2015-03-10 Thread nervoteso

Mnyb wrote: 
 I'm in doubt that there is any actual analog pass through on that amp ?
 The vast majority of AV amps just run the analog inputs trough an AD
 converter and it's then aviable just like any other source and then
 outputs thought the built in DA converters .
 
 It makes sense ona lot of ways to do so . Is it conected digitally to
 the denon ? not the analog outs .

I don't know, touch is connected from its optical outp to optical denon
inputs



Touchx3,Boomx2,1 radio, 1 classic!Squeezebox Server 7.7.2 (Qnap ts-119)

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