SPECIFICATIONS

PLX1804

Stereo Mode
8 ohms (each channel) *
  FTC 20 Hz - 20 kHz 0.05% THD
  EIA 1 kHz 0.1% THD

550 W
600 W

Stereo Mode
4 ohms (each channel) *
  FTC 20 Hz - 20 kHz 0.05% THD
  EIA 1 kHz 0.1% THD

800 W
900 W

Signal to Noise (20 Hz - 20 kHz)

-106 dB

Input Sensitivity @ 8 ohms

1.20 Vrms

Gain @ 8 ohms

35 dB

Output Circuitry

2-Tier Class H

Distortion (SMPTE-IM)

Less than 0.02%

Typical Distortion
  1/8 rated power, 20 Hz-20 kHz
  Full rated power, 20 Hz-20 kHz

Less than 0.02%
Less than 0.02%

Frequency Response

20 Hz-20 kHz, -0.5 dB

Damping Factor

Greater than 200

Input Impedance

20k ohms balanced
10k ohms unbalanced

Input Clipping

5.5 Vrms (+15 dBu)

Cooling

Variable-speed fan, rear-to-front air flow

Input Connectors, each channel

3-pin XLR and 1/4" TRS balanced

Output Connectors, each channel

Neutrik® NL4 Speakon®
(Both channels available on Ch 1 output)

Rear Panel Switches

Circuit Breaker

Front Panel Controls

Detented Input Attenuator: 0 to ∞ dB
Power On/Off

Front Panel Indicators

Clip: Red LED
-10: Green LED
Signal (-35 dB): Green LED
Power: Blue LED

PROTECTION

Amplifier Protection

Full short circuit, open circuit, thermal, infrasonic, ultrasonic, and RF protection
Stable into reactive or mismatched loads

Load Protection

On/off muting, DC-fault power supply shutdown

Infrasonic

-3 dB, 6 Hz

DC fault

Power supply shutdown

Ultrasonic

-3 dB, 80 kHz

Short Circuit

Muting

Thermal

Limiting at 85° C, Muting at 90° C

Over Current

Active clip limiting
AC circuit breaker

High Line

Standard +15%, survive +25%

Low Line

-40%

PHYSICAL

Dimensions
  Height
  Width
  Depth, Rack mounting surface to rear panel
  Overall Depth

3.5" (8.9 cm) 2 rack spaces
19" (48.3 cm)
8.95" (22.7 cm)
11" (27.9 cm)

Weight

13 lbs. (5.9 kg) net
18 lbs. (8.2 kg) shipping

Agency Approvals

CE, FCC, cUL, UL

CURRENT CONSUMPTION

PLX1804

1/8 Power (pink noise)

8 ohms
4 ohms

5.7A/120V
9.4A / 120V

1/3 Power (pink noise)

8 ohms
4 ohms

10.4A/120V
16.5A / 120V

Full Power

8 ohms
4 ohms

20A/120V
32A / 120V

Notes

Long term, breaker-limited to 15A/120V