Yamaha RX-V475 A/V Receiver HT Labs Measures

Two channels driven continuously into 8-ohm loads:
0.1% distortion at 84.6 watts
1% distortion at 105.9 watts

Five channels driven continuously into 8-ohm loads:
0.1% distortion at 23.6 watts
1% distortion at 27.8 watts

Analog frequency response in Direct mode:
–0.23 dB at 10 Hz
–0.08 dB at 20 Hz
–0.04 dB at 20 kHz
–2.58 dB at 50 kHz

Analog frequency response with signal processing:
–0.60 dB at 10 Hz
–0.19 dB at 20 Hz
–0.29 dB at 20 kHz
–62.50 dB at 50 kHz

This graph shows that the RX-V475’s left channel, from Audio input to speaker output with two channels driving 8-ohm loads, reaches 0.1 percent distortion at 84.6 watts and 1 percent distortion at 105.9 watts. Into 4 ohms, the amplifier reaches 0.1 percent distortion at 126.9 watts and 1 percent distortion at 144.8 watts.

There was no multichannel input to measure. THD+N from the Audio input to the speaker output was less than 0.029 percent at 1 kilohertz when driving 2.83 volts into an 8-ohm load. Crosstalk at 1 kHz driving 2.83 volts into an 8-ohm load was –73.74 decibels left to right and –73.14 dB right to left. The signal-to-noise ratio with an 8-ohm load from 10 hertz to 24 kHz with “A” weighting was –109.62 dBrA.

From the Dolby Digital input to the loudspeaker output, the left channel measures –0.11 dB at 20 Hz and –0.29 dB at 20 kHz. The center channel measures –0.11 dB at 20 Hz and –0.38 dB at 20 kHz, and the left surround channel measures –0.11 dB at 20 Hz and –0.37 dB at 20 kHz. From the Dolby Digital input to the line-level output, the LFE channel is +0.14 dB at 20 Hz when referenced to the level at 40 Hz and reaches the upper 3-dB down point at 93 Hz and the upper 6-dB down point at 116 Hz.—MJP

Video Test Bench
Video tests for the RX-V475 reveal one additional advantage over last year’s models. Unlike the RX-V473, this year’s model does pass the standard-definition 3:2 test, quickly locking onto the signal and nipping moiré in the bud. MA HD and SD were also a little better, with the sweeping bar passing clear into the green zone before jaggies appeared, making it a much clearer Pass in that department.—DB

COMPANY INFO
ARTICLE CONTENTS
Share | |

X
Enter your Sound & Vision username.
Enter the password that accompanies your username.
Loading
setting var node_statistics_100168 setting var node_statistics_100168