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In the Forum: Melquiades Amplifier
In the Thread: Single-stage Melquiades vs. DHT amps
Post Subject: OPT impedencePosted by drdna on: 1/14/2009
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 Romy the Cat wrote:
 drdna wrote:
It has the Magnequest DS-025 OPT, connected to the 16 ohm tap.

So, it is 2.5K primary and you drive 8R speaker with 16R tap. That makes the 2A3 loaded in your case with 1750R. I think it is necessary to know in order to put the things in perspective. In my case I think I will (at least try) to drive 2A3 with muck higher impedance, as high as S2 “break up” would allow me to.The Cat
I chose this for a sound most free from "graininess" which may change with PP2000. However, what is the rationale to change the impedence loading on the tube, from your perspective? As you know the Magnequest OPT has taps for 4,9, and 16 ohms. Your suggestions for an experiment after PP2000 is installed?

Adrian

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