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Audio and Video Talk
General Discussion
Local power amplifier manufacturers?
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<blockquote data-quote="Ampdog" data-source="post: 97728" data-attributes="member: 144"><p>Byrd,</p><p></p><p>I will tread carefully here since this is not a 'For sale' or promotional thread. I deduce from your question that you would like to read about the salient features, so in reply to that:</p><p></p><p>Available power output: 80 + 80W</p><p>Frequency response (-1 dB points): Low level (<em>without feedback</em>):10Hz - 30kHz</p><p> With feedback: 10Hz - 1MHz</p><p>Phase shift: Without global NFB: 20Hz: +10 deg 20kHz: -15 deg</p><p> With global NFB: 20Hz: +10 deg 20kHz: -1 deg</p><p></p><p>Harmonic Distortion: At 70W: 0,007% 2nd; 0,006% 3rd, NO higher order (i.e. buried in noise; untracable as such on a spectrum analyser.)</p><p></p><p>Hum and noise (ref. 70W): -90 dB</p><p></p><p>Min. input signal: For MM record cartridge: 3,4mV</p><p>All else: 160mV</p><p>All inputs have separate level pre-sets to decrease sensitivity by 16 dB for individual matching.</p><p></p><p>That is it in brief. There are a host of other desirable features (IMO!). I am sending AudioEngineer (upon his request) a full description as per an info booklet that I have prepaired long ago, of which I will have to make new copies - these contain graphs etc.</p><p></p><p>(Pics have also been posted here before; I will hunt for those and re-post, although the appearance has changed.]</p></blockquote><p></p>
[QUOTE="Ampdog, post: 97728, member: 144"] Byrd, I will tread carefully here since this is not a 'For sale' or promotional thread. I deduce from your question that you would like to read about the salient features, so in reply to that: Available power output: 80 + 80W Frequency response (-1 dB points): Low level ([I]without feedback[/I]):10Hz - 30kHz With feedback: 10Hz - 1MHz Phase shift: Without global NFB: 20Hz: +10 deg 20kHz: -15 deg With global NFB: 20Hz: +10 deg 20kHz: -1 deg Harmonic Distortion: At 70W: 0,007% 2nd; 0,006% 3rd, NO higher order (i.e. buried in noise; untracable as such on a spectrum analyser.) Hum and noise (ref. 70W): -90 dB Min. input signal: For MM record cartridge: 3,4mV All else: 160mV All inputs have separate level pre-sets to decrease sensitivity by 16 dB for individual matching. That is it in brief. There are a host of other desirable features (IMO!). I am sending AudioEngineer (upon his request) a full description as per an info booklet that I have prepaired long ago, of which I will have to make new copies - these contain graphs etc. (Pics have also been posted here before; I will hunt for those and re-post, although the appearance has changed.] [/QUOTE]
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Audio and Video Talk
General Discussion
Local power amplifier manufacturers?
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