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Technical Pro L4Z-4001 (Black)

4000W, 4-Channel Professional Power Amplifier

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List price $449.99

$259.99

with warranty

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Product Features

  • Four Channel Professional Amplifier
  • RMS Power Rating:
    • 8 ohms: 350 watts
    • 4 ohms: 660 watts
    • 2 ohms: 1000 watts
  • Max power output: 4000 watts
  • Blue LED Clipping indicator per channel
  • Bridgeable from 4 Channels to 2 or 3 Channels
  • Dual cooling speed fans
  • Balanced XLR, 1/4" and RCA Inputs
  • Speakon and banana binding post outputs
  • Dimensions: 18"D x 19"W x 2-1/2"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Power Specifications

Number of Channels
This is the number of channels that the professional amplifier is designed to power.
4 Channels
Continuous Power @ 8 ohm
This is the continuous (RMS) power output of the amplifier at an 8 ohm impedance.
350 watts x 4 channels
Continuous Power @ 4 ohm
This is the continuous (RMS) power output of the amplifier at an 4 ohm impedance.
660 watts x 4 channels
Continuous Power @ 2 ohm
This is the continuous (RMS) power output of the amplifier at an 2 ohm impedance.
1000 watts x 4 channels
Continuous Power @ 8 ohm (Bridged)
This is the continuous (RMS) power output of the amplifier at a bridged 8 ohm impedance.
1360 watts x 2 channels
Continuous Power @ 4 ohm (Bridged)
This is the continuous (RMS) power output of the amplifier at a bridged 4 ohm impedance.
2000 watts x 2 channels
Total Continuous Power
This is the total continuous power rating (RMS) that the amplifier is able to output.
4000 watts

Amplifier Specifications

Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

D
Cooling Options
These are the different cooling systems used in the amplifier to keep it cool.
Cooling Fan
Inputs
These are the type of input connections that the amplifier has.
1/4" TRS
RCA
XLR
Outputs
These are the types of output connections that the amplifier has.
Binding Posts (Banana Clip Ready)
SpeakOn

Physical Specifications

Height
The height of the item, measured from top to bottom, in inches.
2-1/2"
Width
The width of the item from left to right (side-to-side) measured in inches.
19"
Depth
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
18"
Weight (Pounds)
This is the weight of the item in pounds (lbs).
30 lbs
Rackmount Spaces
This is the total number of spaces that the preamplifier will occupy when mounted on a rack.
2U

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
40%
4 Star
40%
3 Star
20%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.0
Value
4.4
Features
4.4
Design
4.2
Usability
4.8

JG

Long Isaland, NY

Overall
Durability
Value
Features
Design
Usability

Good bang for the buck

September 8, 2010

Pros: Good amp for the money. Adds a lot of versatility with 4 channels. I run 2 channels out front and 2 for monitors. Combined with a 24 channel Phonic mixer the sound quality is very good. People noticed the sound improvement first time out, (I had been using a carvin & carvin combo). Cons: A little on the heavy side. Workmanship was poor, made in china, had to take the cover off and remove the pieces of leftover wire and components because they kept jamming one of the fans. Problem solved. Don't know the true rms power rating? With all that said, it's a good bang for the buck.

3 of 3 found this helpful

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martin

Ireland

Overall
Durability
Value
Features
Design
Usability

Technical pro

July 31, 2013

great amp very easy to set up and use brilliant power very happy, one fault needs more packaging, especially on the corners as mine came bent, but I do live in rural Ireland and its a long way for a fragile item. overall I would recommend it.

1 of 1 found this helpful

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JGonzález

Mexico

Overall
Durability
Value
Features
Design
Usability

Good product!!

September 25, 2012

I'm happy with the L4Z. It's more amplifier you can hope for this price.

1 of 1 found this helpful

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Ken

Oviedo, Florida

Overall
Durability
Value
Features
Design
Usability

Great product for the price!

August 20, 2012

Have been using the amp for six months now in my church and have had no issues. Very affordable product.

1 of 1 found this helpful

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HUGO

Uruguay

Overall
Durability
Value
Features
Design
Usability

TECHNICAL PRO

February 16, 2011

SonixElectronix, hello people, I tell them that the power goes on well, I thank you have sent the team, because today it is difficult to rely on countries being so far away, but from Uruguay tell them that if they are to trust and have account for other purchases, I deceo a good year, greetings to you. HUGO (ORIENTAL REPUBLIC OF URUGUAY)

1 of 1 found this helpful

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Product Summary

Manufacturer

Model Number

L4Z-4001

UPC

859789002343

Weight

30.00lbs

Internal SKU

l4z4001

Internal Product ID

21294

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Technical Pro L4Z-4001 (Black)