Technical Pro L4Z4002 4-Channel Power Amplifier

Technical Pro L4Z4002 4-Channel Power Amplifier

Technical Pro L4Z4002 4-Channel Power Amplifier

B&H # TEL4Z4002 MFR # L4Z4002
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Expected availability: 7-10 business days

Product Highlights

  • 1000W per Channel at 2 Ohms
  • 1/4" TRS and RCA Inputs
  • Speakon and Binding-Post Outputs
  • Dual-Stereo/Bridged-Mono Switches
  • Blue-LED Meter-Clipping Indicators
  • Independent-Gain-Control Knobs
  • Bridge 4 Channels to 3 or 2 Channels
  • Lift/Ground Switch
  • Dual Cooling Fans
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Technical Pro L4Z4002 overview

  • 1Description

The Technical Pro L4Z4002 4-Channel Power Amplifier is a 2 RU 19" rackmountable amplifier that delivers 4000W of peak power for live sound-reinforcement applications. Each channel is rated to 1000W at 2 Ohms, 660W at 4 Ohms, and 350W at 8 Ohms. The unit is capable of bridging 4 channels down to three or two channels for distributing the power as the application requires. The front panel of the unit features a power on/off switch, four gain knobs, and four sets of blue-LED meter-clipping indicator lights.

The unit features both 1/4" TRS and RCA inputs on each channel. For outputs, each channel features a pair of banana binding posts and a Neutrik Speakon connector. Channels 1 and 2 as a pair and channels 3 and 4 as a pair can be set to stereo or bridged-mono mode using the two stereo/bridged-mono switches on the back of the unit. A ground/lift switch can be turned on or off to eliminate the effects of ground loops.

UPC: 817802011956
In the Box
Technical Pro L4Z4002 4-Channel Power Amplifier
  • Power Cord
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Technical Pro L4Z4002 specs

    Power 4000 W peak power
    1000 W at 2 Ohms
    660 W at 4 Ohms
    350 W at 8 Ohms
    Inputs 4 x 1/4", 4 x RCA
    Outputs 4 x Neutrik Speakon connectors,
    4 x sets of banana binding posts
    Power Supply 110 to 240 VAC Switchable
    Dimensions (W x H x D) 19.0 x 3.5 x 18.0" (482.6 x 88.9 x 457.2 cm)
    Weight 33.0 lb (14.9 kg)
    Packaging Info
    Package Weight 27.55 lb
    Box Dimensions (LxWxH) 21.2 x 19.4 x 6.7"

    Technical Pro L4Z4002 reviews

    L4Z4002 4-Channel Power Amplifier is rated 2.5 out of 5 by 2.
    Rated 2 out of 5 by from Grossly Exaggerated Power Specs Mfr. quotes 350W/ch at 8 ohms peak power. Typically, peak power is 2x continuous, so one would expect around 150-175W/ch continuous RMS. I was hoping it would be at least 120W/ch. Major disappointment: With 8ohm load, 2 channels driven, clipping point is only 20Vrms per channel, for a whopping 50W/chan! Bridge mode into 8 ohms gives 160W, so power into 4 ohms is 80W/ch. Other specs are decent: Freq response at 25% power is +0.1, -0.5dB from 5Hz to 40KHz, -3dB points are 1.6Hz and 86KHz. Slew rate 5V/usec. Haven't measured distortion yet.
    Date published: 2018-06-24
    Rated 3 out of 5 by from Good amplifier Works well as long as you don't need to have parallel inputs because it does not have that option. I have to monkey rigg it with 2 y splitters.
    Date published: 2016-08-19
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