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Junior Varsity
QRx212 & Itech settings
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<blockquote data-quote="Silas Pradetto" data-source="post: 75071" data-attributes="member: 34"><p>Re: QRx212 & Itech settings</p><p></p><p></p><p></p><p>The difference is up to 5dB at 20k IIRC, and that is only comparing 8 ohm to 2 ohm. Open circuit the difference would be much more. </p><p></p><p>I will also mention: ALL class D amps employ a low-pass filter on the output, and this filter becomes part of the circuit with the load altering the response of the amp. So, any time you're measuring a Class D amp, the output must have the nominal load applied for the measurement to be accurate.</p></blockquote><p></p>
[QUOTE="Silas Pradetto, post: 75071, member: 34"] Re: QRx212 & Itech settings The difference is up to 5dB at 20k IIRC, and that is only comparing 8 ohm to 2 ohm. Open circuit the difference would be much more. I will also mention: ALL class D amps employ a low-pass filter on the output, and this filter becomes part of the circuit with the load altering the response of the amp. So, any time you're measuring a Class D amp, the output must have the nominal load applied for the measurement to be accurate. [/QUOTE]
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