Looking for suggestions for a phono preamp PCB.
My first choice was Douglas Self's design, with PCBs from Signal Transfer Company:
The Signal Transfer Company: RIAA PCB with unbalanced outputs
I sent a couple of emails, but alas no response as of yet.
Anything comparable in terms of performance/complexity out there that anyone is aware of? Thanks!
My first choice was Douglas Self's design, with PCBs from Signal Transfer Company:
The Signal Transfer Company: RIAA PCB with unbalanced outputs
I sent a couple of emails, but alas no response as of yet.
Anything comparable in terms of performance/complexity out there that anyone is aware of? Thanks!
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Tons of options:
Rod Elliott P06
Muffsy Phono Kits
Tavish Design (tubes)
Boozehound Labs
RJM Audio
and many more .....
what do you want to build? opamp based, tubes? passive or active RIAA?
best
Michi
Rod Elliott P06
Muffsy Phono Kits
Tavish Design (tubes)
Boozehound Labs
RJM Audio
and many more .....
what do you want to build? opamp based, tubes? passive or active RIAA?
best
Michi
Suggestion: Ebay Lite IC phono cartridge empty PCB line MM negative feedback RIAA
I have been enjoying this phono stage for the last year. I used Dale RN 55 resistors, and the small value capacitors are Wima polypropylene. The output coupling capacitors I chose are Cornell 935 polypropylene (which I have not seen discussed in this forum but are an excellent component). My coupling caps are hung above the board and cover up a portion of it.
I started with an Ebay sourced (single 2 channel IC) specified OPA2604 and was happy. I then went to the LME 49720/LM 4562 which is my personal standard. I now use an (SOIC) OPA 1612 which was another level of resolution. I mounted the SOIC on an adapter which I found I could solder up myself.
I have built other phono preamps and can say without reservation, this one, especially using the OPA1612 and CDE 935 coupling capacitors, to be an excellent choice for a moving magnet cartridge phono stage. And it cost so little money to build. I have an Ortofon 2M black cartridge.
Sorry I could not figure out how to get the Ebay link to work. the pcb is yellow in the Ebay photos. It appears it may also be offered in a ready built version (green pcb) with cheap parts, which I can't vouch for.
I have been enjoying this phono stage for the last year. I used Dale RN 55 resistors, and the small value capacitors are Wima polypropylene. The output coupling capacitors I chose are Cornell 935 polypropylene (which I have not seen discussed in this forum but are an excellent component). My coupling caps are hung above the board and cover up a portion of it.
I started with an Ebay sourced (single 2 channel IC) specified OPA2604 and was happy. I then went to the LME 49720/LM 4562 which is my personal standard. I now use an (SOIC) OPA 1612 which was another level of resolution. I mounted the SOIC on an adapter which I found I could solder up myself.
I have built other phono preamps and can say without reservation, this one, especially using the OPA1612 and CDE 935 coupling capacitors, to be an excellent choice for a moving magnet cartridge phono stage. And it cost so little money to build. I have an Ortofon 2M black cartridge.
Sorry I could not figure out how to get the Ebay link to work. the pcb is yellow in the Ebay photos. It appears it may also be offered in a ready built version (green pcb) with cheap parts, which I can't vouch for.
Here's the link for you....
Lite IC phono cartridge is empty board PCB line MM negative feedback RIAA | eBay
Personally I like the RJM Emerald...
RJM Audio - The Emerald Phono Stage
Excellent boards, mouser BOM and great build instructions...Worked first time and is super quiet noise wise.
Lite IC phono cartridge is empty board PCB line MM negative feedback RIAA | eBay
Personally I like the RJM Emerald...
RJM Audio - The Emerald Phono Stage
Excellent boards, mouser BOM and great build instructions...Worked first time and is super quiet noise wise.
The newest Wyn Palmer 2-stage design is my choice. It include DC servo too.
High gain opamp based preamp for low output MC cartridges. | Audiokarma Home Audio Stereo Discussion Forums
Is it the best? I don't know. But it should be easy to build and the support by Wyn and his insight on the approach is invaluable.
High gain opamp based preamp for low output MC cartridges. | Audiokarma Home Audio Stereo Discussion Forums
Is it the best? I don't know. But it should be easy to build and the support by Wyn and his insight on the approach is invaluable.
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