Thank you very much. Also used in the XP-30 according this test reports:
Pass Laboratories XP-30 line preamplifier | Stereophile.com
Pass Labs XP 30 im Test - connect
more URLs:
http://easyaudiokit.hobby-web.net/bekkan/manual/PrecisionEVOLmanual.pdf
http://www.rstaudio.de/VV5/vv5_de.html
http://www.analog-forum.de/wbboard/...lbstbau/118905-muses-72320-volume-attenuator/ (post #8 give an answer to my previous post here)
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Remote Controlled (RC) Volume Control Kits
....and here you can buy ready built modules:
Select & Volume | AKOUO Audio Solutions | DIY | Sabre | JRC | MUSES72320
....and here you can buy ready built modules:
Select & Volume | AKOUO Audio Solutions | DIY | Sabre | JRC | MUSES72320
Was the new Elma already mentioned? Remote Audio PLUS - remote controlled stepper motor driver
These guys also have the pieces for a 72320 based remote volume control
Academy Audio 72320 boards
I'm considering building a project with their little 72320 board, but then using an Arduino to control it via the SPI bus. The Arduino would in turn talk to my phone over bluetooth. Ohh, and some kind of isolation on the SPI bus between Arduino and 72320, so Arduino noise doesn't get into audio system.
But, many of my projects never get completed
But you could spend a little over $200, add a power supply and case, and use the academy audio stuff and be done.
Randy
Academy Audio 72320 boards
I'm considering building a project with their little 72320 board, but then using an Arduino to control it via the SPI bus. The Arduino would in turn talk to my phone over bluetooth. Ohh, and some kind of isolation on the SPI bus between Arduino and 72320, so Arduino noise doesn't get into audio system.
But, many of my projects never get completed
But you could spend a little over $200, add a power supply and case, and use the academy audio stuff and be done.
Randy
I am looking for dual monaural Remote Controlled (RC) Volume Control units for a passive preamp to drive mono block power amplifier and active loudspeakers.
Usual passive preamp contains a source selector and a stereo pot in one enclosure. The good known disadvantage is an unwanted low pass character due long wire (usually a cinch coax cable) between potentiometer output and power amp resp. active loudspeaker input.
To avoid this unwanted effect the long coax cable is to connect between output of the source selector switch and the potentiometer input.
To realize this I need follow units:
1) source selector switch box - e. g.
https://goldpt.com/sw4.htmlmore examples go to post #22 under
https://www.diyaudio.com/community/threads/rotary-source-selector-for-audio.202573/page-2
2) remote controlled potentiometer or relais in the kind of this examples under
https://www.ebay.com/itm/372638880007https://www.amb.org/audio/delta1/but in a mono version (two pcs.) and only one IR receiver like TSSP4P38 for both units
https://www.vishay.com/docs/82474/tssp4p38.pdf
From where I can order such dual monaural IR attenuators ?
Thanks for an advice.
Usual passive preamp contains a source selector and a stereo pot in one enclosure. The good known disadvantage is an unwanted low pass character due long wire (usually a cinch coax cable) between potentiometer output and power amp resp. active loudspeaker input.
To avoid this unwanted effect the long coax cable is to connect between output of the source selector switch and the potentiometer input.
To realize this I need follow units:
1) source selector switch box - e. g.
https://goldpt.com/sw4.htmlmore examples go to post #22 under
https://www.diyaudio.com/community/threads/rotary-source-selector-for-audio.202573/page-2
2) remote controlled potentiometer or relais in the kind of this examples under
https://www.ebay.com/itm/372638880007https://www.amb.org/audio/delta1/but in a mono version (two pcs.) and only one IR receiver like TSSP4P38 for both units
https://www.vishay.com/docs/82474/tssp4p38.pdf
From where I can order such dual monaural IR attenuators ?
Thanks for an advice.
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Khozmo I now have and I like very much: https://khozmo.com/. I have the series version with remote.
Also this one from Tentlabs should be fine:
http://www.tentlabs.com/Products/page31/page31.htmlhttps://www.tentlabsshop.com/DetailServlet?detailID=1580
http://www.tentlabs.com/Products/page31/page31.htmlhttps://www.tentlabsshop.com/DetailServlet?detailID=1580