QSC PL340

Features

• 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

Specifications

• OUTPUT POWER PER CHANNEL, STEREO MODE, both channels driven
  • 8Ω EIA 1 kHz 1% THD: 800 W
  • 4Ω EIA 1 kHz 1% THD: 1250 W
  • 2Ω EIA 1 kHz 1% THD: 2000 W
• OUTPUT POWER, BRIDGE MONO MODE
  • 8Ω EIA 1 kHz 1% THD: 2600 W
  • 4Ω EIA 1 kHz 1% THD: 4000 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: 0.002-0.01%
  • 4 ohms: 0.005-0.01%
  • 2 ohms: 0.02%
• Maximum Distortion (20 Hz–20 kHz, 1 dB below rated power)
  • 4 to 8 ohms: 0.05%
• Frequency Response (8 ohms): 20 Hz–20 kHz, ±0.2 dB
• Noise (20 Hz–20 kHz, 32 dB Gain): -105 dB
• Dynamic Headroom (4 ohms): 2 dB
• Damping Factor (8 ohms): 500
• Output Circuitry: Class H (2-tier)
• Input Sensitivity
  • 26 dB Setting: 3,92V
  • 32 dB Setting: 1,96V
• Maximum Gain (1.2V setting): 36.4 dB
• Maximum Input Level:
  • 1.2V setting: 11 V (+22 dBu)
  • 32 dBu setting: 14,6 V (+29 dBu)
  • 26 dBu setting: 25 V (+30 dBu)
• AC Power Requirements
  • 120V 50/60 Hz: 12 A
  • 230V 50 Hz: 7 A
• Cordset
  • 120V 50/60 Hz:NEMA-15
  • 230V 50 Hz: CEE 7/7 16A
• Chassis Power Connector: 20A 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: 8.9 cm
  • Width: 48.3 cm
  • Depth: 39.7 cm from front mounting rails
• Weight: Net: 11kg