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If you want to satisfy your curiosity, try out a cheap "RA-1 clone"

193.90.12.118

HarryDStanton

In Reply to: RE: Tube amp suggestions for Grado RS2e posted by Steve. on March 09, 2018 at 22:16:42

Search ebay for "RA_1 clone" or "portable headphone amplifier" and eventually you'll be viewing a number of "Cmoy" type portable battery-powered amps, some of better quality than others are. Usually, the clones are built into Altoids tins but some use fancier housings made of wood or metal. What matters is that you'll be getting something that sounds like an RA-1 amp, for a fraction of the cost.
I'm not affiliated with this EBAY seller, but check out the one who calls himself "biosciencegeek". He'll make you a high quality "RA-1 clone" (using the exact same op-amp that Grado uses) for not much money. He may not have any listings on ebay right now but he has sold items within the past couple of months so do a member search there and shoot him an email request if you are interested.

Edits: 03/10/18 03/10/18

Follow Ups:

RE: If you want to satisfy your curiosity, try out a cheap "RA-1 clone" - Steve. 16:50:33 03/10/18 (1)
Thx, I'll check it out
- RE: If you want to satisfy your curiosity, try out a cheap "RA-1 clone" - HarryDStanton 08:27:44 03/11/18 (0)
  Hey, "biosciencegeek" just relisted his amps on ebay. Item # 142718226213.
  No affiliations.
  One of the nice things about these little amps is that you can change out opamps in a snap. Simply unplug one and plug in another. With a few different opamps in hand you can experiment with different tonal signatures.
  Have fun.
  
  Edits: 03/11/18 03/11/18

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