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JL Audio :: 450/4 :: $499.00

JL Audio 450/4

Item# 16955

4-Channel Power Amplifier

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  • Channels 1 and 2:
    • Rated Power (stereo mode): 150W RMS x 2 @ 1.5 ohm-4 ohm (11V-14.5V)
    • Rated Power (bridged mode): 300W RMS x 1 @ 3 ohm-8 ohm (11V-14.5V)
  • Channels 3 and 4:
    • Rated Power (stereo mode): 75W RMS x 2 @ 1.5 ohm-4 ohm (11V-14.5V)
    • Rated Power (bridged mode): 150W RMS x 1 @ 3 ohm-8 ohm (11V-14.5V)
  • Peak Power Output 900 watts approx.
  • Differential-Balanced Input Topology: (2 pairs of inputs)
  • Channels 1 and 2 Crossover:
    • Fully-variable (50 Hz-5 KHz), selectable-slope LP or HP (12 or 24 dB per octave)
  • Channels 3 and 4 Crossover:
    • Fully-variable (50 Hz-5 KHz), selectable-slope LP or HP (12 or 24 dB per octave)
  • 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
  • Preamp Output: 2-channel (Pass-through with selectable input sourcing)
  • Bass EQ: +6 dB (variable boost up to +15 dB with Remote Bass Option)
  • Infrasonic Filter (Channels 1&2 only): defeatable 24dB/octave at 30 Hz
  • Speaker output connections: accept up to 8ga. wire
  • +12V and Ground connections: accept up to 4ga. Wire
  • Fuse Rating: 60A
  • Dimensions: 13.4"L x 9.25"W x 2.36"H
  • Authorized Internet Dealer
*Warranty: 1 Year Manufacturer warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to for replacement within 30 days from the original date of purchase with proper return authorization. After the 30 day time period, products must be returned to their original manufacturer for the remainder of the manufacturer's warranty period.

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   Timmy B From Boston MA
I gave this amp a 10 across the board because of its high power output, all the different settings, and because I got a really good deal on it. I bought this amp to power my JL XR components in the front doors of my 05 Grand Cherokee and the TR components in the rear doors. Installation was easy with the JL amp kit, though all the settings the amp has was kinda confusing to me since im not a car stereo buff. I think my system still needs a little more tweeking to get the "best" sound out of the amp. The one thing I am really happy with is how I installed it under a false floor I made in the cargo area and it does not overheat at all, it never shut down all last summer being under there driving 3+ hours with the stereo at full volume. The heat sinks did get burning hot to the touch, but it kept running perfect. I think this amp is well made, and I like how it automatically runs at different ohms and puts out the same power. I followed JL's recommendation of setting the amp using a volt meter, and I feel the amp will put out way more power than its rated for. I did a test and bridged the front channels to run my 10W6v2 sub and it sounded just like it did with my 500/1 amp pushing it.

   Law From chi
i have this amp runnin my JL components an Jl 6x9 an another set of jl tweeters every thing is so crisp an clear you can her them from blocks away not to mention the 13w7 OMG JL Rocks!!!!!!!!!!!!!!!!!!!

   Noonie From Illinois
great buy,but the only set back could be the pricing for this amp.but don't get me wrong,it's worth it.just all of us can't pay for high priced things.advise is>save and buy,you will be more than happy you did!