Sony HT-DDW685 User Manual

POWER OUTPUT AND TOTAL 
HARMONIC DISTORTION:
(Models of area code U only)
With 6 ohm loads, both channels driven, from 
120 – 20,000 Hz; rated 85 watts per channel 
minimum RMS power, with no more than 1% 
total harmonic distortion from 250 milliwatts 
to rated output.

HT-DDW790 only
Models of area code U, CA, CEL, CEK
Power Output

1)

Stereo mode (rated) (6 ohms 1 kHz, THD 1%)

85 W + 85 W

Surround mode

2)

 (reference) 

(6 ohms 1 kHz, THD 10%)

RMS output
FRONT:133 W 
per channel
CENTER: 133 W
SURROUND: 133 W
per channel

Surround mode

2)

 (reference) 

(6 ohms 100 Hz, THD 10%)

SUB WOOFER: 135 W

HT-DDW685 only
Models of area code SP, MX, E51
Power Output

1)

Stereo mode (rated) (6 ohms 1 kHz, THD 1%)

70 W + 70 W

Surround mode

2)

 (reference)

(6 ohms 1 kHz, THD 10%)

RMS output
FRONT:100 W 
per channel
CENTER: 100 W
SURROUND: 100 W
per channel

Surround mode

2)

 (reference) 

(10 ohms 100 Hz, THD 10%)

SUB WOOFER: 60 W 
per channel

Models of area code AR
Power Output

1)3)

Stereo mode (rated) (6 ohms 1 kHz, THD 1%)

70 W + 70 W

1)

65 W + 65 W

3)

Surround mode

2)

 (reference)

(6 ohms 1 kHz, THD 10%)

RMS output
FRONT: 
100 W per channel

1)

90 W per channel

3)

CENTER:
100 W

1)

90 W

3)

SURROUND: 
100 W per channel

1)

90 W per channel

3)

Surround mode

2)

 (reference) 

(10 ohms 100 Hz, THD 10%)

SUB WOOFER: 
60 W per channel

1)

50 W per channel

3)

1)

Measured under the following conditions:

U, CA

120 V AC, 60 Hz

CEL, CEK, SP, AR

230 V AC, 50 Hz

E51

240 V AC, 50 Hz

MX

127 V AC, 60 Hz