SPECIFICATIONS

CX204V

CX254

CX404

STEREO MODE, Both Channels Driven

8 ohms 20 Hz-20 kHz 0.05% THD

-

170W

250W

4 ohms 20 Hz-20 kHz 0.05% THD

-

250W

400W*

2 ohms 1 kHz 1% THD

-

450W

not recommended

70V 20 Hz-20 kHz 0.05% THD

200W

-

-

70V 1 kHz 0.05% THD

220W

-

-

70V 1 kHz 1% THD

300W

-

-

BRIDGED MONO MODE

16 ohms 20 Hz-20 kHz 0.1% THD

-

340W

500W

8 ohms 20 Hz-20 kHz 0.1% THD

-

500W

800W*

4 ohms 1 kHz 1% THD

-

900W

not recommended

140V 20 Hz-20 kHz 0.1% THD

400W

-

-

140V 1 kHz 0.05% THD

440W

-

-

140V 1 kHz 1% THD

600W

-

-

Noise, 20Hz-20kHz

<-105 dB

<-106 dB

<-106 dB

Input Sensitivity

1.26Vrms

1.22Vrms

1.22Vrms

Gain (for full-rated output power)

35 dB @ 70.7V

29 dB @ 8 ohms

31 dB @ 8 ohms

Input Clipping

10 Vrms (+22 dB)

10 Vrms (+22 dB)

10 Vrms (+22 dB)

Output Circuitry

AB+B

AB+B

AB+B

Distortion (SMPTE-IM)

Less than 0.02%

Less than 0.01%

Less than 0.01%

ALL MODELS

Distortion (Typical)
20 Hz-20 kHz: 10 dB below rated power
1.0 kHz and below: full rated power

Less than 0.01% THD
Less than 0.01% THD

Frequency Response (typical)

20 Hz-20 kHz, ± 0.2 dB   8 Hz-50 kHz, +0/-3 dB

Damping Factor

Greater than 500 (1 kHz and below)

Input Impedance

6k ohms unbalanced, 12k ohms balanced

Cooling

Variable speed fan, rear to front airflow through tunnel heat sink

Connectors, each channel

Input: 3 position Euro-style detachable barrier block, Ch 1,2,3 & 4
DataPort: HD-15 Connector, Ch 1+2, Ch 3+4
Output: Six-position barrier strip with monitor connections, Ch 1+2, Ch 3+4

Amplifier Protection

Full short circuit, open circuit, thermal, ultrasonic, & protection. Stable into reactive or mismatched loads.

Load Protection

On/off muting, DC-fault power supply protection

Indicators

PARALLEL INPUTS: Red LED
BRIDGED: Yellow LED
PWR-ON: Green LED

CLIP/PROT: Red LED (1 per channel)
LEVEL-10 dB: Yellow LED (1 per channel)
LEVEL-20 dB: Yellow LED (1 per channel)
SIGNAL -35 dB: Green LED (1 per channel)

Controls

Controls Front: AC switch, Ch.1 and Ch.2 gain knobs
Rear: DIP switch for Ch.1 and Ch.2: clip limiter on/off, LF filter on/off,
LF filter freq select 33 Hz or 75 Hz for non-V models; 50 Hz or 75 Hz for V models; inputs parallel or stereo; bridge mode

Dimensions

19" (48.3 cm) rack mounting, 3.5" (8.9 cm) tall (2 rack spaces),
14" (35.6 cm) deep (from front mounting rails)

Weight

21 lb (9.5 kg) net, 27 lbs (12.3 kg) Shipping

Power Requirements

100, 120, 230 Vac, 50-60 Hz