Sony STR-DA4300ES A/V Receiver and BDP-S500 Blu-ray Player HT Labs Measures: Sony STR-DA4300ES A/V Receiver
Five channels driven continuously into 8-ohm loads:
0.1% distortion at 46.7 watts
1% distortion at 60.1 watts
All channels driven continuously into 8-ohm loads:
0.1% distortion at 43.1 watts
1% distortion at 50.5 watts
Analog frequency response in Analog Direct mode:
–0.08 dB at 10 Hz; –0.02 dB at 20 Hz
–0.07 dB at 20 kHz; –0.44 dB at 50 kHz
Analog frequency response with stereo signal processing:
–0.59 dB at 10 Hz; –0.19 dB at 20 Hz
–0.48 dB at 20 kHz; –35.66 dB at 50 kHz
This graph shows that the STR-DA4300ES’s left channel, from CD input to speaker output with two channels driving 8-ohm loads, reaches 0.1 percent distortion at 153.7 watts and 1 percent distortion at 179.5 watts. Into 4 ohms, the amplifier reaches 0.1 percent distortion at 188.9 watts and 1 percent distortion at 234.5 watts.
Response from the multichannel input to the speaker output measures –0.07 decibels at 10 hertz, –0.02 dB at 20 Hz, –0.06 dB at 20 kilohertz, and –0.43 dB at 50 kHz. THD+N from the CD input to the speaker output was less than 0.023 percent 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 –72.88 dB left to right and –80.22 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 –94.23 dBrA.
From the Dolby Digital input to the loudspeaker output, the left channel measures –0.09 dB at 20 Hz and –0.38 dB at 20 kHz. The center channel measures –0.09 dB at 20 Hz and –0.37 dB at 20 kHz, and the left surround channel measures –0.09 dB at 20 Hz and –0.33 dB at 20 kHz. From the Dolby Digital input to the line-level output, the LFE channel is –0.11 dB at 20 Hz when referenced to the level at 40 Hz and reaches the upper 3-dB down point at 105 Hz and the upper 6-dB down point at 112 Hz.—MJP