Sony xec 700 service manual

Page 1

XEC-IIIII

SERVICE MANUAL

U8 Model
AEP Model
UK Model
E Model

Crossover lrequency

Gain

Harmonic distortion
Signal-to noise ratio
Stereo separation
Frequency response
Crossover slope

Maximum output level
Bass boost

General
inputs

Outputs

Power requirements
Current drain
Mounting dimensions
Weight

Accessories supplied

SPECIFICATIONS

Mild FLAT. 70. 100, 140 Hz, 2.4 k, 3.5 k, 5 kHz
High 2.4 k, 35 k, 5 k 7 kHz
LOW 50. 70, 100 140 Hz

0 dB

+6 dB (Sub-wooIer)

less Ihan 0.003% (1 kHz)
more than 105 dB

More than 80 dB

3 Hz to 150 kHz (:3 dB)
12 dB/oct

18 dB/oct {Sub-woofer)

+18 dB

0 to +10 dB (40 Hz)

Remote control input

Power input

Line input (phone jack 4)

Line outputs (phono jack 8)

12 V DC car battery (negative ground)
310 mA

Approx. 180 x 40 x 200 mm (w/h/d)
Approx. 1.1 kg

Mounting screws (4)

For details on the bass boost and the block diagram

ol the unit.

Design and specifications subject to change without
notice,

FEATURES

0 Linear phase filters (Bessel function type)
realize natural and equal sound levels in and
around the passband frequency.

0 Audio electrolytic capacitors and non-
magnetic carbon resistors for high quality
sound.

. SUB-WOOFER phase inversion switch for
checking the audio relationship between the
sub woofers and front mid or rear mid/high
speakers.

- 40 Hz bass boost control for dynamic bass
reproduction

Linear phase tillers (Bessel function type) Most of
the channel dividers currently available emplly llat
response filters tButterworth type). The group delay
characteristic of this type is much worse than that of
the tinear phase tillers. and this causes transient
distortion in the audio signals at each lilter's
crossover lrequency To reduce this distortion and to
obtain optimum hi-ti sound. linear phase litters
(Bessel function type) are used tor the KEG-700.

ELECTRIINIB CRIISSIIVER NETWIIRK

SONY;