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JL Audio 300/4

300 watts, 4-Channel Amplifier

JL Audio
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4-Channel Power Amplifier • 75 watts RMS x 4 chan. • Bridged: 150 watts RMS x 2 chan. • 108.5 dB S/N Ratio • 1.5 ohm - 8 ohm stable (1.5 - 4 ohm unbridged, 3 - 8 ohm when bridged)

Learn more about the jl3004

Good news and a little bad...

This item has been discontinued

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Product Highlights


4-Channel Power Amplifier • 75 watts RMS x 4 chan. • Bridged: 150 watts RMS x 2 chan. • 108.5 dB S/N Ratio • 1.5 ohm - 8 ohm stable (1.5 - 4 ohm unbridged, 3 - 8 ohm when bridged)

Description


JL Audio brand icon

Authorized dealer

Specifications:
  • Rated Power (stereo): 75W RMS x 4 @ 1.5 ohm-4 ohm (11V-14.5V)
  • Rated Power (bridged): 150W RMS x 2 @ 3 ohm-8 ohm (11V-14.5V)
  • THD at Rated Power: <0.03% @ 4 ohm
  • S/N Ratio*: >108.5 dB below rated power
  • Frequency Response: 5 Hz-30 KHz (+0, -1dB)
  • Damping Factor: >200 @ 4 ohm per ch./50 Hz
  • Input Range: switchable from 200mV-2V RMS to 800mV-8V RMS
  • Dimensions: 13.4"L x 9.25"W x 2.36"H
Features:
  • Differential-Balanced Input Topology: (2 pairs of inputs)
  • Front Crossover: fully-variable (50 Hz-5 KHz), selectable-slope LP or HP (12 or 24 dB per octave)
  • Rear Crossover: fully-variable (50 Hz-5 KHz), selectable-slope LP or HP (12 or 24 dB per octave)
  • Speaker output connections: accept up to 8ga. wire
  • +12V and Ground connections: accept up to 4ga. Wire


Due to the complexities of installation, previous customer abuse, and improper installation, the JL Audio 300/4 is now a repair only item whether defective on day 1 or day 365 of ownership.

Product history:

JL Audio 300/4v3 thumbnail
(newest, current model)
JL Audio 300/4v2 thumbnail
(previous model, replaced by JL Audio Slash 300/4v3)
JL Audio 300/4 thumbnail
(previous model, replaced by JL Audio Slash v2 300/4v2)

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Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
75 watts x 4 channel
RMS Power @ 2 ohms
75 watts x 4 channel
RMS Power @ 1 ohm
(at 1.5 ohms) 75 watts x 4 channels
Bridged RMS Power
150 watts x 2 channel
Amplifier Specifications
Amplifier Class
A/B
Number of Channels
4-Channel
Total RMS Power Output
300 watts
Minimum Impedance Unbridged
1.5 ohm
Minimum Impedance Bridged
1.5 ohms
THD at Rated RMS Power
0.03%
Speaker Level Inputs
No
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
50 - 500 Hz
Low-Pass Crossover Frequency
50 - 500 Hz
Signal-to-Noise Ratio
108.5 dB
Bass Boost
Bass EQ (on/off)
Remote bass/level controller
No
Fuse Rating
40A x 1 
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

300/4

Weight:

15.00lbs

Internal SKU:

jl3004

Internal Product ID:

1172

Product and How-to Videos


Customer Ratings & Reviews


JL Audio 300/4 thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
4.9
Features
4.9
Design
4.9
Usability
4.9

Customer Reviews

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I am running a pair of Clif Designs 6.5" components up front. A pair of Clif Designs 5x7" in the rear. These get great, clean, and clear power from the JL 300. All the flexibility with the amp makes the crossovers almost unnecessary. I have 2 12w6 running off a JL 1000 and the overall sound is amazing. That is a true head rattling, breath taking 1300 watts.JL is every bit worth the money.

By Charles on March 3, 2007

12 found this helpful


Perfect Power

I have this amp running two sets of JL Audio C5 component speakers. I don't have the amp turned up that high and I can not believe how good this set up sounds. Even with the amp not turned up very high, when I turn up the volume it goes so loud it is almost ridiculous and still sounds perfect and crisp every time. I highly recommend this amp and all JL products.

By Steven on July 11, 2008

12 found this helpful


The best for it's size

I own this amp and it is the best. It sounds great, never over heated on me and gets very loud. The only down side is the cost.

By Andrew on August 30, 2005

11 found this helpful


Amazing sound quality

I just purchased one of these amps from my local audio store along with jl audio xr components. This amp is amazing. I was running all alpine type s with and alpine mrp-220. I put this amp on my alpines before I pulled them to see the sound difference and it was amazing. Cleaned up the bass a lot. This is definitely the sq amp for speakers. I would suggest it for anyone.

By James on September 28, 2007

10 found this helpful


Precise

As far as interior amps goes, this is one of the better ones out there. This was the first JL Audio amp I purchased, and it is still alive today.

I can attest to the durability from the above statement. The value is you get what you paid for. Mid-range to higher end audio equipment will always cost more than the lower end stuff.

I had this amp power my interior components hifonics zeus 6.5" comps in a jetta. They were clearer hit harder than I had imagined.

By samuel on June 13, 2013

10 found this helpful


Awesome Amp

I recently installed this amp in my car to power a pair of Polk MOMO MMC6500 components. I went from an Alpine V12 with the same power rating to the JL 300/4. The improvement in sound quality was amazing. The music was so much brighter and clearer. The improvement in detail was so great that I could hear sounds that I couldn't with the Alpine. The amp is a bit pricey, but worth every penny. Highly recommended for the true car audio enthuasist.

By James on September 10, 2005

9 found this helpful


Amazing

I have been running of the deck for my speakers for a while ever since my old school v12 amp died. And this is just amazing. It blows the v12 out of the water. So clear and defined it's just crazy. Got to love JL and their great products. Never dissapointed.

By george on April 30, 2008

8 found this helpful


This Amp Is Friggin Good

I just bought this amp from Sonicelectronix, I can't stress out enough how much of a difference in sound there is now compared to having my speakers straight from the deck. Sound is so much clearer, crisp, and every little detail is heard. It also pounds pretty good and keeps up well to my JL500.1 amp which powers an Alpine type R 12" sub. I am very happy with this purchase and I would recomend this amp to anyone! Worth every penny.

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Jl Doesn't disappoint

This is one of the thump'nist amp's I've been turned onto.
I've bought two more since for my other vehicles.

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