Discontinuation Notice: The PL340 power amplifier has been discontinued. Please contact your local Sales Rep for more details.

With PowerLight switch mode power supply, 1250 watts per channel into 4 ohms and class H topology, the PL340 is ideal for live sound / production applications.


  • PowerLight switch-mode power supply for highest efficiency and improved audio performance
  • Flow-through air path and solid aluminum heat sinks for maximum cooling
  • DataPort supports remote network control and monitoring via Q-SYS
  • Detented gain controls with 1-dB steps for precise calibration
  • Removable knobs with lock-out security plate to prevent unauthorized tampering
  • User defeatable clip limiters and selectable low-frequency filter per channel (3 Hz, 30 Hz, or 50 Hz)
  • Three selectable gain structures (26 dB, 32 dB, or 1.2 V)
  • Front and rear panel LEDs indicate status of switch settings at a glance
  • Parallel XLR/M and XLR/F connectors for simple loop-through connectivity
  • Neutrik Speakon® and "Touch-Proof" binding post outputs
  • Neutrik Powercon® power cable remains secure on the road
  • 3 year warranty, plus optional 3 year extended service contract
  • Linear Class H output circuit offer double the typical efficiency of Class B, reducing AC current consumption and cooling requirements
  • Linear Class H output circuit offer double the typical efficiency of Class B, reducing AC current consumption and cooling requirements

  • Class D output circuit produces massive output power with even lower losses and minimal increase in average AC power, dramatically reducing power distribution demands compared to older high power amplifiers

SPECIFICATIONS PL325 [discontinued] PL340 [discontinued] PL380
both channels driven
8Ω EIA 1 kHz 1% THD 500 W 800 W 1500 W
4Ω EIA 1 kHz 1% THD 850 W 1250 W 2500 W
2Ω EIA 1 kHz 1% THD 1250 W 2000 W 4000 W*
8Ω EIA 1 kHz 1% THD 1700 W 2600 W 5000 W
4Ω EIA 1 kHz 1% THD 2500 W 4000 W 8000 W*
Typical Distortion
(20 Hz–3 kHz, 3 dB below clip, or 20 Hz–5 kHz, 10 dB below clip, or 20 Hz–20 kHz, 20 dB below clip)
8 ohms
4 ohms
2 ohms


Maximum Distortion
(20 Hz–20 kHz, 1 dB below rated power)
4 to 8 ohms


Frequency Response (8 ohms) 20 Hz–20 kHz, ±0.2 dB
Noise (20 Hz–20 kHz, 32 dB Gain) -106 dB -105 dB -104 dB
Dynamic Headroom (4 ohms) 2 dB
Damping Factor (8 ohms) 500 200
Output Circuitry Class H (2-tier) Class D
Input Sensitivity
26 dB Setting
32 dB Setting



Maximum Gain (1.2V setting) 34.5 dB 36.4 dB 39.1 dB
Maximum Input Level
1.2V setting
32 dBu setting
26 dBu setting

11 V (+23 dBu)
14.6 V (+25.5 dBu)
25 V (+30 dBu)

10 V (+22 dBu)
22 V (+29 dBu)
25 V (+30 dBu)
AC Power Requirements **
120V 50/60 Hz
230V 50 Hz

8.5 A
7.5 A

12 A
7 A

18 A
11 A
120V 50/60 Hz
230V 50 Hz

CEE 7/7 16A

CEE 7/7 16A
Chassis Power Connector
All Voltages

20A PowerCon

32A PowerCon
Input Impedance > 10 kΩ balanced, or unbalanced
Cooling Variable-speed fan, rear-to-front air flow
Connectors (each channel) Input: XLR Male, XLR Female and 3-pin detachable terminal blocks (1 each per channel)
Output: Neutrik Speakon® (ch 1 wired to both channels) and 5-way binding posts
DataPort: HD-15, input signal in parallel with XLR input connectors
Front Controls AC power switch
Gain controls, 21 detents, 1 dB steps (each channel)
Front Indicators (LED color) Power (Blue)
Bridged (Yellow)
Parallel (Orange)
Clip/Prot (Red × 2)
Level -10 (Orange × 2)
Level -20 (Green × 2)
Signal -35 (Green × 2)
Rear Controls (with LED indicators) Input Mode: Bridge (Yellow), Stereo (Green), or Parallel (Orange)
Gain / Sensitivity: 26 dB (Orange), 32 dB (Green), or 1.2V (Yellow)
High Pass (each channel): 3 Hz (Off), 30 Hz (Yellow), or 50 Hz (Orange)
Clip Limiter (each channel): Off, on (Yellow)
Amplifier and Load Protection Short circuit, open circuit, thermal, RF protection. On/off muting, DC fault shutdown, active inrush limiting
Dimensions Height: 3.5" (8.9 cm) 2RU
Width: 19" (48.3 cm)
Depth: 15.63" (39.7 cm) from front mounting rails
Weight Net: 22 lb (10 kg)
Shipping: 31.5 lb (14.3 kg)
Net: 24 lb (11 kg)
Shipping: 33.5 lb (15.2 kg)
Agency Approvals UL, CE, RoHS/WEEE compliant, FCC Class B (conducted and radiated emissions)

U.S. Patent no. 5767744 and patents pending
*Burst mode testing required due to AC service current limitations
** Representative of current draw with typical music program material with occasional clipping

All specifications are subject to change without notice.