I've just changed the power supply my M2tech Evo with LifeP04 and i'm getting such goosebumps listening to Souad Massi's Live album that i'm wondering if i could also power the 32 digital section with the other pack. It's rated 9,9V -I've measured it at 10,45V fully charged. Is it safe or over the SOR?
It certainly looks great.
May I ask how you mounted the display to the front-panel?
I plan to do something similar, but actually i have no clue on how big the rectangular hole must be, to look "professonal". I guess it must be slightly smaller than the display itself...
Also: Should one use a cover glass before the display (for protection)?
I can manage some wood- and also metal-work, but this task does puzzle me.
May I ask how you mounted the display to the front-panel?
I plan to do something similar, but actually i have no clue on how big the rectangular hole must be, to look "professonal". I guess it must be slightly smaller than the display itself...
Also: Should one use a cover glass before the display (for protection)?
I can manage some wood- and also metal-work, but this task does puzzle me.
The panel itself is 10mm thick. On the rear a 8mm deep cavity is made, which is slightly bigger then the cut out on the front, to hold the display window. I have used 3mm thick grey plexiglass for the window and made a "mask" of black cardboard so then nothing else then the display is visable through the display window. Around the cavity on the back there are 4 m3 threaded holes to bolt the display pcb to the frontpanel. Easyist solution I could think of.
Scanspeakman
I have volumite with buff32s. When volume knob is turned completely down I still hear music. Is this normal?
I've only recently added the volumite, but strangely I don't seem to remember it being like this when I first installed it. Its now when testing a new amp that I noticed it.
Edit: Another thing thats been bugging me. The spdif button has two positions 1 and ON, so then 1 is off? I am to use i2s input.
I've only recently added the volumite, but strangely I don't seem to remember it being like this when I first installed it. Its now when testing a new amp that I noticed it.
Edit: Another thing thats been bugging me. The spdif button has two positions 1 and ON, so then 1 is off? I am to use i2s input.
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It is normal.
1 is the switch number (kinda silly that it's there, since there is only one switch), and ON is the switch position indicator.
1 is the switch number (kinda silly that it's there, since there is only one switch), and ON is the switch position indicator.
I was poking around inside of mine earlier today and I'd say this is spot on, it's a great all-in-one.
A drop in revision (with say, onboard tridents) would be very cool 😎
Help with a Buffalo 32s channel not working
One channel of my Buf32s is not working.
I've tested the outputs (both channels) with an oscilloscope. I have used a CD track with a 1kHz signal and one channel shows the signal ok, as it should be. However the other channel shows no AC signal, instead appear 13.8Vdc between + and GND and -7.9Vdc between - and gnd.
Seems clear that the analog part of the buff32 is failing . Could someone please help me?
Since the scheme is not available I guess Brian and/or Russ would know with more certainty that may be failing.
The configuration of the dac is very simple. I use spdif input and SE output (signal taken from + and gnd) and two Placid BP one per channel (+/-15V and 200mA supply current configuration) and one Placid for Digital (5.20V and 200mA supply current configuration) . Attached is a pic of the dac.
One channel of my Buf32s is not working.
I've tested the outputs (both channels) with an oscilloscope. I have used a CD track with a 1kHz signal and one channel shows the signal ok, as it should be. However the other channel shows no AC signal, instead appear 13.8Vdc between + and GND and -7.9Vdc between - and gnd.
Seems clear that the analog part of the buff32 is failing . Could someone please help me?
Since the scheme is not available I guess Brian and/or Russ would know with more certainty that may be failing.
The configuration of the dac is very simple. I use spdif input and SE output (signal taken from + and gnd) and two Placid BP one per channel (+/-15V and 200mA supply current configuration) and one Placid for Digital (5.20V and 200mA supply current configuration) . Attached is a pic of the dac.
An externally hosted image should be here but it was not working when we last tested it.
That's a nice clean DAC. Good work. My suspicion is that an op-amp has gone bad. I am out of town at the moment, but when I get back I will try to help you identify which one by giving you some test points.
Cheers!
Russ
Cheers!
Russ
Ok. I can see two OPA1632 one LM4562 and one LME49710. Do you mean the output of all these opamps?
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