Pioneer Elite VSX-52TX A/V Receiver HT Labs Measures

HT Labs Measures: Pioneer Elite VSX-52TX A/V Receiver

• Five channels driven into 8-ohm loads: 0.1% distortion at 115.3 watts; 1% distortion at 129.7 watts

• Analog frequency response in direct mode: –0.17 dB at 10 Hz; –0.06 dB at 20 Hz; –0.21 dB at 20 kHz; –1.21 dB at 50 kHz.

• Analog frequency response with signal processing: –0.17 dB at 10 Hz; –0.06 dB at 20 Hz; –0.21 dB at 20 kHz; –1.21 dB at 50 kHz.

This graph shows that the VSX-52TX's left channel, from CD input to speaker output with two channels driving 8-ohm loads, reaches 0.1% distortion at 121.2 watts and 1% distortion at 143.1 watts. Into 4 ohms, the amplifier reaches 0.1% distortion at 197.0 watts and 1% distortion at 231.4 watts.

Response from the multichannel input to the speaker output measures –0.17 dB at 10 Hz, –0.06 dB at 20 Hz, –0.22 dB at 20 kHz, and –1.25 dB at 50 kHz. THD+N from the amplifier was less than 0.012% at 1 kHz when driving 2.83 volts into an 8-ohm load. Crosstalk at 1 kHz driving 2.83 volts into an 8-ohm load was –81.37 dB left to right and –84.28 dB right to left. The signal-to-noise ratio with 2.83 volts driving an 8-ohm load from 10 Hz to 24 kHz with "A" weighting was –99.34 dBrA.

From the Dolby Digital input to the loudspeaker output, the left channel measures –0.29 dB at 20 Hz and –0.43 dB at 20 kHz. The center channel measures –0.15 dB at 20 Hz and –0.35 dB at 20 kHz, and the left surround channel measures –0.15 dB at 20 Hz and –0.36 dB at 20 kHz. From the Dolby Digital input to the line-level output, the LFE channel is –0.0 dB at 20 Hz when referenced to the level at 40 Hz and reaches the upper 3-dB down point at 118 Hz and the upper 6-dB down point at 121 Hz.—MJP

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