DBX CX-3

Commentary

Multi-function control amplifier with built-in surround processor.

With a built-in surround function, you can choose from three positions : Dolby surround, Matrix surround, or Simulated Stereo which adds breadth and depth to mono source.
Also, the Dolby input can be calibrated with the rear panel knob.
The surround function can be bypassed.

It has an external surround processor input and can be connected to an external surround processor.

Equipped with 3-band split tone control.

Audio and video signals are completely isolated to eliminate mutual interference.
Each of the phono equalizer, tone controller and surround processor is equipped with a power regulator to eliminate interference between circuits.

Each video circuit is equipped with a buffer amplifier to reduce video buzz and pop noise.

Model Rating

Type	Control amplifier
Phono MM:2.5mV Phono MC:0.25mV CD, Line, Tape : 200 mv
Maximum allowable input	Phono MM:150mV Phono MC:15mV
Input impedance	Phono MM : 47k Ω Phono MC : 100 Ω CD, Line, Tape : 30k Ω
Frequency characteristic	Phono MM : 20 Hz to 20 kHz ± 0.25 dB CD, Line, Tape : 10 Hz to 50 kHz + 0 -1dB
S/N ratio (IHF-A)	Phono MM : 85 dB or more Phono MC : 67 dB or more CD, Line, Tape : 100 dB or more
Total harmonic distortion factor	Phono MM : 0.01% (20 Hz to 20 kHz, 3 V) Phono MC : 0.02% (20 Hz to 20 kHz, 3 V) CD, Line, Tape : 0.008% (20 Hz to 20 kHz, 5 V)
Maximum output level	8 v (20 Hz ~ 20 kHz)
Output impedance	600 Ω
Tone control	Bass : + / - 10 dB Mid : ± 10 dB Treble : + / - 10 dB
Infrasonic filter	-3dB (-6dB/oct) at 15 hz
Surround part	Dolby Surround Delay time : 20 ms Total harmonic distortion rate : 0.2% (1 kHz)
Pwer	100 VAC, 50Hz/60Hz
Power consumption	11W
External dimensions	Width 475x Height 99x Depth 343 mm
Weight	7.2kg