Why Shop Sonic Free Shipping Free Tech Support Easy Returns Low Price Guarantee Details

JL Audio 300/4

300 watts, 4-Channel Amplifier

5.0

(7 reviews)

Read 7 reviews

Write a review

The product on this page is discontinued, but there is a newer model available:
Newer Model: JL Audio Slash v2 300/4v2
3004v2 thumbnail
$349.95In Stock

Specials with this product

  • Free Ground Shipping to the 48 statesdetails
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 Slash v2 300/4v2 thumbnail
(newest, current model)
JL Audio 300/4 thumbnail
(previous model, replaced by JL Audio Slash v2 300/4v2)
Power Specifications - Full Range Channels
RMS Power @ 4 ohms75 watts x 4 channels
RMS Power @ 2 ohms75 watts x 4 channels
RMS Power @ 1 ohm(at 1.5 ohms) 75 watts x 4 channels
Bridged RMS Power150 watts x 2 channels
Peak Power OutputN/A
Amplifier Specifications
Amplifier ClassAB
Number of Channels4
Total RMS Power Output300 watts
Minimum Impedance Unbridged1.5 ohms
Minimum Impedance Bridged1.5 ohms
THD at Rated RMS Power0.03%
Speaker Level InputsNo
Preamp Outputs1 pair
Built-in CrossoverLow-pass (LP)
High-pass (HP)
High-Pass Crossover Frequency50 - 500 Hz
Low-Pass Crossover Frequency50 - 500 Hz
Subsonic FilterN/A
Signal-to-Noise Ratio108.5 dB
Channel SeparationN/A
Bass BoostBass EQ (on/off)
Bass/Gain RemoteNo
Fan CooledNo
Fuse Rating40A x 1 
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
Customer Review Summary for JL Audio 300/4
Average Customer Rating is 5.0 out of 5 stars:
5.0
based on 7 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
.
100%
4 star:
.
0%
3 star:
.
0%
2 star:
.
0%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
5.0
Value
4.9
Features
4.9
Design
4.9
Usability
4.9
what's this?
Most Helpful Customer Reviews:
July 11, 2008 Perfect Power
Review by
Steven from Quesnel, BC, Canada
Overall
Durability
Value
Features
Design
Usability
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.
Help other customers find the most helpful reviews
Was this review helpful to you?
Report Abuse | Write a Review
Share on Facebook Share on Twitter Share on Delicious Share on Buzz
April 30, 2008 Amazing
Review by
george from delton, MI
Overall
Durability
Value
Features
Design
Usability
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.
Help other customers find the most helpful reviews
Was this review helpful to you?
Report Abuse | Write a Review
Share on Facebook Share on Twitter Share on Delicious Share on Buzz
September 28, 2007 This Amp Is Friggin Good
Review by
Jose from Vancouver, BC, Canada
Overall
Durability
Value
Features
Design
Usability
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.
Help other customers find the most helpful reviews
Was this review helpful to you?
Report Abuse | Write a Review
Share on Facebook Share on Twitter Share on Delicious Share on Buzz
September 28, 2007 Amazing sound quality
Review by
James from Melber, KY
Overall
Durability
Value
Features
Design
Usability
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.
Help other customers find the most helpful reviews
Was this review helpful to you?
Report Abuse | Write a Review
Share on Facebook Share on Twitter Share on Delicious Share on Buzz
March 3, 2007
Review by
Charles from Camby, IN
Overall
Durability
Value
Features
Design
Usability
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.
Help other customers find the most helpful reviews
Was this review helpful to you?
Report Abuse | Write a Review
Share on Facebook Share on Twitter Share on Delicious Share on Buzz
View All 7 Reviews for JL Audio 300/4
Amplifier Wiring Kits
Get the wires you need to properly install and power your car amp.
 ProductPriceAdd?
Monster Cable BAP300Monster Cable BAP300
8 Gauge Amplifier Installation Power Kit (No RCA Interconnects)
$40.00
Kicker DCK8Kicker DCK8
8 Gauge Amplifier Installation Kit with RCA Interconnect Cable
$47.99
Bass Remote Control
Control the volume level of your bass and amplifier from the front of the vehicle.
 ProductPriceAdd?
Universal Remote Level Bass ControlUniversal Remote Level Bass Control
Controls bass level and frequency via RCA/Interconnect connectors on any amp.
$14.99
Small Universal Remote Level Bass ControlSmall Universal Remote Level Bass Control
The Scosche RLC is a smaller universal bass remote that connects via RCA inputs.
$12.99
Speaker Wire
Improve the sound quality by delivering more power when replacing your factory wiring. High quality speaker will maximize your amplifier investment and system performance.
 ProductPriceAdd?
Kicker XW1220 Speaker WireKicker XW1220 Speaker Wire
12 Gauge Wire - 20 ft. of Dual Twist Speaker Cable with Sleeves for a Clean Install
$24.99
StreetWires SCP1215BL - 12 AWG Speaker WireStreetWires SCP1215BL - 12 AWG Speaker Wire
12 Gauge Wire - 15 ft. of Speaker Cable with Twisted Construction
$19.99
RCA Interconnects
You will need a good set of RCA interconnect cables to connect your amplifier to your head unit. Using high quality cables ensure the best sound possible by reducing unwanted noise interference, providing tight contacts, and utilizing the latest in cable technology.
 ProductPriceAdd?
Kicker 4-Channel RCA Audio Interconnect CableKicker 4-Channel RCA Audio Interconnect Cable
4 Meters (13 ft.) 4-Channel RCA Audio Interconnect Cable with Dual Twisted-Pair, Hyper-Flex Technology
$21.99
Kicker Z-Series RCA Interconnect CableKicker Z-Series RCA Interconnect Cable
19 ft. of 4-Channel RCA cable with dual twisted-pair conductors, hyper-flex technology, and gold plated contacts for maximum signal transfer!
$24.99
StreetWires ZN7 RCA Interconnect CableStreetWires ZN7 RCA Interconnect Cable
16.4 ft. of 4-Channel RCA Cable with hyper twist construction, oxygen free copper, and precision machined tips.
$49.99
Capacitors
Capacitors store energy for the amplifier to use on demand, thereby assisting in the elimination of dimming lights during peak power surges during use.
 ProductPriceAdd?
Raptor C1F ** SPECIAL PRICE **Raptor C1F ** SPECIAL PRICE **
True 1.0 Farad Car Audio Capacitor for up to 1000W Max
$31.99
e2 ECAP1 by Scosche - Mid-Level 1 Farade2 ECAP1 by Scosche - Mid-Level 1 Farad
Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max
$43.99
Rockford Fosgate RFC1D - Top of the Line 1 FaradRockford Fosgate RFC1D - Top of the Line 1 Farad
Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max
$104.99
Installation, Tools & Accessories
With our professional install card, you can have your amp installed by a pro near you, or you can purchase tools and do the install yourself.
 ProductPriceAdd?
StreetWires FB8StreetWires FB8
8 Gauge Firewall Bushing
$4.99
Kicker DB1448 (09DB1448) - Top of the Line!Kicker DB1448 (09DB1448) - Top of the Line!
Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs
$18.99
Professional Installation for your Car Power AmplifierProfessional Installation for your Car Power Amplifier
Covers labor charges through our professional installer network.
$89.99
Testing and Performance
Optimize your system's performance with testing tools such as SPL meters, bass test discs and more!
 ProductPriceAdd?
AutoSound 2000 CD-104AutoSound 2000 CD-104
The ultimate amplifier level setting disc used for evaluation of audio components
$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99

Product Summary

Manufacturer: JL Audio
Model number: 300/4
Weight: 15.00 lbs
Internal SKU: jl3004
Internal product ID: 1172
February caption contest - win a Powerbag!

Customer Testimonial

the prices on most of the products offered are some of the lowest ive ever seen. i recently purchased a new pioneer head unit and love it. the buying experience was great. i am not shopping any where else for my car stereo needs. i recommend everyone to shop with sonic. keep up the good work.

- tt89gtab from buffalo, ny

See more…

Recently Viewed Items

jl3004 thumbnail

Clarion Compatible SIRIUS Satellite Radio Tuner + Antenna for Clarion Stereos by Directed Electronics

jl3004 thumbnail

5-Channel Class-D Marine Digital PDX Amplifier

jl3004 thumbnail

Shallow-mount sealed enclosure with one 10" XS-L10S subwoofer included, great for trucks or cars