Pio Posted March 2, 2017 Share Posted March 2, 2017 Hello, is 10 watt resistor enough for Heresy 1.5, or worth 15 o 25 watt ones instead? using 100+ watt/ch amplifier any comments will be really appreciated. best regards. Pio 1 Quote Link to comment Share on other sites More sharing options...
Deang Posted March 2, 2017 Share Posted March 2, 2017 10 watts is fine unless you're jacking on the volume. If you're paranoid, just go with 20 watts. Quote Link to comment Share on other sites More sharing options...
Pio Posted March 2, 2017 Author Share Posted March 2, 2017 thank you! i think i´ll keep the 10 watts ones. best regards Pio 1 Quote Link to comment Share on other sites More sharing options...
mark1101 Posted March 2, 2017 Share Posted March 2, 2017 Right now I am using 210 wpc Mac monoblocks and use 10W swamp resistors. I have used more power than that..........there is also a lot more involved in figuring how much wattage actually goes through that resistor, which I won't get into. Maybe Dean or Mike will. Quote Link to comment Share on other sites More sharing options...
djk Posted March 3, 2017 Share Posted March 3, 2017 Dropping a Heresy mid down one tap makes the power level -12dB, hardly a challenging power level for even a 10W resistor. Quote Link to comment Share on other sites More sharing options...
Pio Posted March 4, 2017 Author Share Posted March 4, 2017 On 3/3/2017 at 4:10 PM, djk said: Dropping a Heresy mid down one tap makes the power level -12dB, hardly a challenging power level for even a 10W resistor. thank you, no tap change in the scheme i used, attached pdf, i dont know how much power the resistor receive in this scheme. best regards Pio heresy F and Z curves 13-11-2005 .pdf 1 Quote Link to comment Share on other sites More sharing options...
djk Posted March 7, 2017 Share Posted March 7, 2017 It will receive about -6dB of what the amplifier can put out, about 2W for a 300B amplifier. A 25W part would be needed for a 100W amplifier. 1 Quote Link to comment Share on other sites More sharing options...
Schu Posted March 7, 2017 Share Posted March 7, 2017 From my understanding... a tap position change without a requisite capacitor value change will induce some nastiness that manifests itself as a "bark" in the spectrum... a peak in the response curve. Quote Link to comment Share on other sites More sharing options...
Pio Posted March 7, 2017 Author Share Posted March 7, 2017 5 hours ago, djk said: It will receive about -6dB of what the amplifier can put out, about 2W for a 300B amplifier. A 25W part would be needed for a 100W amplifier. Thank you very much! Great info. Best regards! Pío 1 Quote Link to comment Share on other sites More sharing options...
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