Tap Dancing with Paramour

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As promised in
http://www.audioasylum.com/forums/bottlehead/messages/11122.html
below are three possible arrangements for the Paramour output transformer. These are derived from simplified measurements I made on the transformer, not by in-circuit measurement, so they are subject to change(!). Each condition reflects the optimum load of 4000 ohms to the tube plate.
1) stock: 1.25w primary tap, 4 ohms on the 4 ohm tap or 8 ohms on the 8 ohm tap.
Bass response -3dB at 4-32Hz depending on signal level, full power down to 65Hz, treble -3dB at 38kHz with a 6dB/octave rolloff to 100kHz.
2) 2.5w primary tap, 8 ohms on the 4 ohm tap or 16 ohms on the 8 ohm tap.
Bass response -3dB at 8-64Hz depending on signal level, full power down to 93Hz, treble flat to a 3.5dB peak at 62kHz. This might be a great setting for a tweeter amp.
3) 0.625w tap, 2 ohms on the 4 ohm tap or 4 ohms on the 8 ohm tap.
Bass response -3dB at 2-16Hz depending on signal level, full power down to 46Hz, treble -3dB at 19kHz with a 6dB/octave rolloff to 200kHz. This is the best bass amp setting, but will miss a trace of sparkle at the top if you have extended response tweeters.

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Parts Connexion

Topic - Tap Dancing with Paramour - Paul Joppa 20:54:33 09/14/00 (3)

Re: Tap Dancing with Paramour - Jules 05:33:03 09/15/00 (1)

Re: Tap Dancing with Paramour - Paul Joppa 12:12:53 09/15/00 (0)

Most meaningful - Roberts 22:37:20 09/14/00 (0)

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