Wyn Palmer Phono Pre Build

[mr_rye89]

My implementation of the filter circuit was a botch job but it works! This preamp was way below the noise floor of my Dayton DSP/300B tweeter amp before I added the filter......but it does sound sweeter/smoother with the filter. Now about that box.....

 

[mr_rye89]

I think I found a virgin 1U rack enclosure I can live with.

Soon......

 

[mr_rye89]

Eh....I'll make it work....I forgot to order stand offs though. I'm thinking about that push button on/off switch with the neon bulb in it and an IEC to get power in it, should round it off nicely

 

[mr_rye89]

Done-ish. Didn't do the grounds yet. My Rega arm doesn't have a separate ground wire anyways. I used an IEC connector for power and an old Radio Shack neon indicator push button switch

 

[J!m]

Prepare to be amazed.

 

[mr_rye89]

The Stanton 500 type cart I'm using is too hot and overloading this preamp. The way I built it according to the documentation it has 43db of gain, I ordered some resistor sets to change it to 40db or 36db of gain. At the moment I've switched back to that TCC TC-750 phono preamp with its published 40db of gain and the crispiness is gone.

The TCC preamp sounds cheap compared to this one though. Surprised?

 

[J!m]

Not surprised.

This little preamp has caused serious disruption of the high-cost phono preamps market. It compares easily with units costing 10k and more (sometimes sounds better) and bests all tube phono preamps.

 

[mr_rye89]

Alright set up for 36db of gain. Just right!

That TCC is a muddy turd in comparison. Amazing what a guy can do with a few resistors, capacitors, inexpensive op amps, an off the shelf SMPS.....

And I don't care what anyone says, the EAR 834 is NOT a good phono preamp......

 

[J!m]

Wyn wanted to use op amps just to prove op amps can sound good when properly implemented. Same with the “evil” SMPS and look what he did.

Hrs working on a “better” one now but the parallel op amp version (V3) is plenty good enough for anyone.

 

[mr_rye89]

Imma look into the V3 if I get the hankering to bolt a DL-103 to that Micro Trak arm......

 

[J!m]

Parallel op amps dropped the distortion a bit. I used that board for my MC as the gain is high so the noise comes up with it.

The MM board is the same as yours. Single op amp.