JBL MPX600 2-Channel Amplifier 400-Watts RMS

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JBL MPX600 2-Channel Amplifier 400-Watts RMS

After decades of creating the best possible loudspeaker components and systems for the professional audio industry, JBL is proud to offer the MPX Series of professional power amplifiers. Night after night, concert after concert, you know you can depend on JBL speakers. Now, with the MPX line, JBL makes it possible to afford the same level of performance and reliability in the rest of your professional sound system. The MPX Series starts with a design platform that has endured years of road use with proven reliability. The patented Grounded Collector® design enhances power transistor cooling by eliminating the need for transistor insulating wafers — the deterioration of which is one of the primary causes of amplifier failure. Starting with this design, JBL added important performance features, enabling you get the most from your sound system:


  • Oversized heat sinks and extra large high volume fans - keep the MPX amps cool in even the highest ambient temperature environments.
  • Low noise design - ensures quiet operation.
  • A variety of input connectors - including a versatile removable barrier strip, makes hookup and installation quick, easy, and secure.
  • Transducer excursion protection circuitry - keeps speakers working reliably night after night.
  • Power levels and high dynamic headroom - match the requirements of your professional JBL loudspeaker system.


    • 2 ohm load/channel:850 W 
    • 4 ohm load/channel:600 W 
    • 8 ohm load/channel:400 W 
    • 4 ohm bridge:1700 W 
    • 8 ohm bridge:1200 W
    • 2 ohm load: 880W
    • 4 ohm load: 700W
    • 1 kHz, 8 ohm load (typical): 0.00015
    • 1 kHz, 4 ohm load (typical): 0.0003
    • 20 Hz - 20 kHz, 8 ohm load: 0.0015
    • 20 Hz - 20 kHz, 4 ohm load: 0.002
    • Frequency Response: 20 Hz to 20 kHz, ± 0.15 dB
    • Damping Factor: Greater than 200 at 8 ohms
    • Dynamic Headroom: 2.5 dB at 4 ohms
    • Noise: 100 dB below rated output (20 Hz to 20 kHz)
    • Sensitivity: 1 V rms for rated power (8 ohms)
    • Input Impedance: 10 K ohms unbalanced, 20 K ohms balanced
    • Front Panel: AC switch, Ch 1 & Ch 2 Gain (detents @ 0 dB, -2 dB, -4 dB, -6 dB, -8 dB, -10 dB, -12 dB, -14 dB, -18 dB, -24 dB,∞), Ch 1 & Ch 2 High Pass Filter switches Rear Panel: Slide switch for Stereo, Dual Mono (paralleled inputs) or Bridged Mono input and output configurations
    • Power: Green LED
    • Signal Present: Green LED
    • Clip: Red LED
    • Protect: Red LED
    • Input: XL-type 3 pin (pin 2 high)/6.3 mm (1/4 in) TRS combination connector and removable barrier strip with separate chassis ground terminal
    • Output: Binding Posts, touch resistant, accepts dual banana plugs and up to #8 AWG bare wire
    • Cooling: Rear-To-Front Airflow and Two-speed fan
    • Amplifier Protection: Full short circuit, open circuit, ultrasonic and RF protection, current limiting, thermal muting; stable into reactive or mismatched loads. MPX1200 additionally has thermal/clip limiting
    • Load Protection: On/off muting, DC fault load grounding relay with internal fault fuses. MPX1200 additionally has clip limiting
    • Output Circuit Type: Complementary linear, high efficiency outputs/ 2 step
    • Power Requirements: 100 V, 120 V, 220 V, or 230 V AC, 50-60 Hz (not user configurable)
    • Dimensions (HxWxD): 133 x 483 x 408 mm (rack depth 404 mm) 5.25 x 19 x 16.1 in (rack depth 15.9 in)
    • Net Weight: 21.5 kg (47 lbs.) 
    • Agency Approvals: UL, CSA, TUV and approved by Lucasfilm for THX® system installations


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