Contacted Gogowatch
+ Added myself to the parts GB list, did not add postage. I assume it is calculated by the sender.
Thank you
+ Added myself to the parts GB list, did not add postage. I assume it is calculated by the sender.
Thank you
Question about buffer sound...
I added the buffer to my Subbu ES9023 (with two 9v batteries powering it). After listening to it for several hours I noticed that on a few tracks, and just a few, piano passges sound a bit distorted. I'm baffled because on 98% of the piano music I played it sounds great.
In particular two songs from the Hereafter movie soundtrack and So Far Away (Carol King). When I remove the buffer and play the same tracks with the dac only I don't hear the "distortion".
My music is all played from ripped cds on mpd. Oh, my preamp is a buffer itself, a dcb1.
Also, in my eagerness to listen to I used very thin cable for the input and power because they already had the connectors (a good hifi enthusiast, like a good programmer, is lazy first above all else...). But I can't think that this would have an effect on only a few songs.
Did I hose my buffer when putting it together?
I added the buffer to my Subbu ES9023 (with two 9v batteries powering it). After listening to it for several hours I noticed that on a few tracks, and just a few, piano passges sound a bit distorted. I'm baffled because on 98% of the piano music I played it sounds great.
In particular two songs from the Hereafter movie soundtrack and So Far Away (Carol King). When I remove the buffer and play the same tracks with the dac only I don't hear the "distortion".
My music is all played from ripped cds on mpd. Oh, my preamp is a buffer itself, a dcb1.
Also, in my eagerness to listen to I used very thin cable for the input and power because they already had the connectors (a good hifi enthusiast, like a good programmer, is lazy first above all else...). But I can't think that this would have an effect on only a few songs.
Did I hose my buffer when putting it together?
As mentioned already elsewhere, Joachim (and I) suggest you use +/-15V PSU or higher.
The reasons have already been explained in post #528.
Patrick
The reasons have already been explained in post #528.
Patrick
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Thanks Patrick. I'm pretty sure I must have read that and promptly forgot it... I'll try with a 15+/- one later today.
Some good new.
Soldering is done, only waiting for testing.
Will still take a couple of weeks.
WK will let you know when ready to ship.
Thank you for your patience,
Patrick
Soldering is done, only waiting for testing.
Will still take a couple of weeks.
WK will let you know when ready to ship.
Thank you for your patience,
Patrick
Can anyone recommend a nice bi-polar supply to use? Thus far I've found two that I'd think would do the trick, but I'm looking for something smaller in footprint if possible...
PS-12 Bipolar Low-Voltage PS
Low Current Bipolar Power Supply (LCBPS) - A Regulated CRC Supply
Thanks!
PS-12 Bipolar Low-Voltage PS
Low Current Bipolar Power Supply (LCBPS) - A Regulated CRC Supply
Thanks!
I am thinking of using two NewClassD regulators from Dexa at +-15V (or similar ones from Belleson) which would involve a tiny bit of DIY to mount them and supply them with filtered DC... but all could be done in a small footprint.
I would just try 2x 9V batteries with LT1761 / LT1964 set at +/-15V output first, before trying anything exotic.
Patrick
Patrick
@TheShaman I don't think you can get the JSR01 anymore according to the site. Here's something that I found on the Sjöström site that should do the trick and has the transformers on the PCB. It's not necessarily the smallest solution, but since it's all in one it might be useful in keeping space down. Its the SPS02...
Sjöström Audio - SPS02 Sjöström Power Supply
It seems to me that one doesn't need anything crazy to power this buffer ie a super high performance power supply. Am I correct in my understanding?
On the other hand I'm thinking of going for one of those Salas SSLV 1.1 boards. Would this board be better than going with the Sjöström SPS02?
Sjöström Audio - SPS02 Sjöström Power Supply
It seems to me that one doesn't need anything crazy to power this buffer ie a super high performance power supply. Am I correct in my understanding?
On the other hand I'm thinking of going for one of those Salas SSLV 1.1 boards. Would this board be better than going with the Sjöström SPS02?
Tell you what - as soon as my Acko clock boards land, I'll A/B the JG Buffer with a basic linear PS and dual rail Salas shunts. Happen to have a pair tuned for 15V +/-.