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The Marantz SR9600 THX Ultra 2 AV Surround Receiver:
All measurements were taken on the left channel. The S/N (A-weighted, 2.83V into 8Ω) measured –99dB. The receiver's gain measured 29.1dB, CD in to speaker out, with an 8Ω load and the level control set to "2.5." With only two channels operating at 1kHz, the Marantz clipped (1% THD+noise) at 186Wpc into 8Ω and 281Wpc into 4Ω (to the nearest watt). Driving seven channels into 8Ω, the Marantz delivered 61Wpc at 20Hz and 133Wpc at 1kHz (to the nearest watt) before clipping (1% THD+noise). Driving seven channels into 4Ω the Marantz delivered 119Wpc at 20Hz and 194Wpc at 1kHz (to the nearest watt) before clipping (1% THD+noise).—TJN
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