15
POWER SECTION
(400 SC Module with DDT
™
)
Frequency Response:
+0, -1 dB, 20 Hz — 20 kHz @ rated power
Rated Power:
• 210 watts RMS into 4 ohms, both channels
driven
• 150 watts RMS into 8 ohms, both channels
driven
• Bridge out 420 watts into 8 ohms*
*
8 ohms minimum load for bridge output only
Total Harmonic Distortion:
Less than .01% @ 1 kHz @ rated power
DDT
™
Dynamic Range:
Greater than 26 dB
DDT
™
Maximum Distortion:
Below 0.5% THD for 6 dB overload
Below 1% THD for 20 dB overload
Hum and Noise:
-97 dB below 210 watts
Damping Factor:
Greater than 100 @ 1 kHz, 4 ohms
Input Sensitivity:
1.5 V RMS for 210 watts @ 4 ohms
Input Impedance:
2 k ohms
Power Requirements:
600 watts, 120 V AC, 60 Hz
Dimensions:
Width: 19.125"
Height: 10.875"
Depth: 11.0"
Weight: 35.6 lbs.
XR 684/400 SC AMPLIFIER SPECIFICATIONS
XR 684+/304D AMPLIFIER SPECIFICATIONS
Frequency Response:
Stereo mode, both channels driven
+0.5, -3 dB, 1 W RMS, 4 ohms, 20 Hz to 20 kHz
The frequency response is internally controlled to
optimize phase linearity and improve transient
response.
Rated Output Power (120 V AC, 60 Hz):
Stereo mode, both channels driven
4 ohms, 1 kHz, 400 W RMS per channel
8 ohms, 1 kHz, 250 W RMS per channel
Total Harmonic Distortion:
Stereo mode, both channels driven
1 kHz, 4 ohm rated output, Less than 0.2%
DDT
™
Dynamic Range:
Below 0.5% THD for 6 dB overload
Below 1% THD for 20 dB overload
Hum and Noise:
Stereo mode, both channels driven
Below rated output power, 4 ohms
Greater than -95 dB (A-weighted)
Input Sensitivity:
1.2 V RMS for 400 watts @ 4 ohms
Input Impedance:
10 k ohms
Power Requirements:
1,080 watts, 120 V AC, 60 Hz
Dimensions:
Width: 19.125"
Height: 10.875"
Depth: 11.0"
Weight: 35.5 lbs.
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