QSC PL-340 POWER AMPLIFIER 2x1250W RMS @4Ω, 2x2000W RMS @2Ω

Power Rating

Stereo Mode:
8Ω EIA 1 kHz 1% THD - 800W
4Ω EIA 1 kHz 1% THD - 1250W
2Ω EIA 1 kHz 1% THD - 2000W


Bridged Mono:
8Ω EIA 1 kHz 1% THD - 2600W
4Ω EIA 1 kHz 1% THD - 4000W

Damping Factor     Not Specified By Manufacturer
Input Sensitivity     26dB Setting - 3.92V
32dB Setting - 1.96V
Input Impedance     > 10kΩ balanced, or unbalanced
Gain     36.4dB
Frequency Response     20Hz to 20kHz, +/- 0.2dB
Signal-to-Noise Ratio     -105dB
Total Harmonic Distortion (THD)     0.02% @ 2Ω
0.005-0.01% @ 4Ω
0.002-0.01% @ 8Ω
Input Connections     Input: XLR Male, XLR Female and 3-pin detachable terminal blocks (1 each per channel)
DataPort: HD-15, input signal in parallel with XLR input connectors
Output Connectors     Output: Neutrik Speakon (ch 1 wired to both channels) and 5-way binding posts
Controls Front Panel     AC Power Switch
Gain Controls, 21 detents, 1 dB steps (each channel)
Controls (Rear)     Input Mode: Bridge (Yellow), Stereo (Green), or Parallel (Orange)
Gain / Sensitivity: 26dB (Orange), 32dB (Green), or 1.2V (Yellow)
High Pass (each channel): 3Hz (Off), 30Hz (Yellow), or 50Hz (Orange)
Clip Limiter (each channel): Off, On (Yellow)
Indicators     Clip Limiter (each channel): Off, On (Yellow)
Camera Resolution     Flow-thru air path and solid aluminum heat sinks
Power Consumption     120V 50/60Hz - 12A
230V 50Hz - 7A
Power Requirements     Not Specified By Manufacturer
Dimensions (WxHxD)     19 x 3.5 x 15.63" (48.3 x 8.9 x 39.7cm)
Weight     33.5 lbs (15.2kg)
Specialties     Parallel Dataport, XLR/M and XLR/F connectors for simple loop-through connectivity

Number of Channels: 2

Output Power: (per channel)

8 ohms     575W
4 ohms  1025W
2 ohms  1750w


Output Power: (bridged)

8 ohms 2050W
4 ohms 3500w


THD%: (@1dB below max output)

@ 1kHz 

This professional stereo power amplifier, working in class-H mode, provides 2x1600W, at an efficiency of around 85%.
A massive transformer based power supply and hand selected components makes this power rating possible with exceptional audio quality and absolute reliability, even in the 2 Ohm mode.
The output stage is fully protected against over-temperature, short circuit, RFI and equipped with soft start circuit and temperature-controlled fan cooling.
The integral soft clip limiter protects against damage to the connected loudspeakers.
The activity of a protective circuit, signal and limiter is shown for each channel by LEDʼs.

Live performance DSP amplifier. Fully integrated professional speaker processing with FIR Drive technology . Market leading acoustic performance and rock solid reliability. True 2 ohm stability. Intuitive system control software, makes setup and control easy. Rated power: 2 Χ 2200 Watts/2Ω, 2 Χ 1800 Watts/2,6Ω, 2 Χ 1300 Watts/4Ω, 2 Χ 650 Watts/8Ω.

The versatile PX series power amplifiers lineup combines intelligent processing with high output power to meet the requirements of a vast range of sound reinforcement environments. 2x800W@8Ω / 2x1050W@4Ω

The versatile PX series power amplifiers lineup combines intelligent processing with high output power to meet the requirements of a vast range of sound reinforcement environments.

• 2x800W@8Ω
• 2x1050W@4Ω
• Newly developed Class-D amplifier engine with a custom LSI
• Flexible onboard PEQ, crossover, filters, delay, and limiter functions
• Yamaha Speaker presets
• Utlities for safe and secure operation

The new flagship of the LX series delivers a mighty 2 x 2100 watts into 2 ohms and 2 x 1500 watts into 4 ohms and therefore has plenty of headroom for large subwoofer arrays. For decades, DYNACORD has been one of the leading manufacturers in the pro audio sector and has established a secure position in the amplifier market thanks to the excellent audio performance,absolute reliability and high stability of the Linear Precision series. With their outstanding operational security, which guarantees years of problem-free use, the amplifiers of the Linear Precision series are now the standard for a wide variety of full-range and multi-way loudspeakers systems in professional venues as diverse as theatres, stadiums, discotheques, clubs and concert halls. Datasheets / ManualsManual (2.2MB)

Load Impedance 2 O, 4 O, 8 O Max. Midband Output Power, THD = 1%, 1kHz 2 O - 2100 W, 4 O - 1500 W, 8 O - 900 W Rated Output Power, THD 300 Slew Rate 38 V/µs Signal to Noise Ratio, A-weighted 108 dB Output Stage Topology Class H Power Requirements 100V, 120V, 220V, 230V, 240 V; 50Hz … 60Hz (factory configured) Power Consumption, 1/8 max. output power @ 4 ohms 1070 W Protection Audio Limiters, High Temperature, DC, HF, Back-EMF, Peak current Limiters Inrush Current Limiters, Turn-On delay Cooling Front-to rear, 3-stage fans Ambient Temperature Limits +5° … +40° ( 40°F … 105°F ) Safety Class I Dimensions ( W x H x D ) mm 483 x 88.1 x 384 Weight 8.70 kg (19.2 lbs) Optional Accessories Rear Rackmount 15.5" D112 930 (RMS15-CL), Rear Rackmount 18.0" D112 933 (RMS18-CL), LPN + Lo-Cut Filter D112963 (NRS 90268)