JL Audio 300/4V2 Car Audio 4-Channel Amplifier 300 Watts

by JL Audio

Product Details

• Shipping Weight: 20 pounds (View shipping rates and policies)
• ASIN: B000XUBL9Q
• Item model number: 300/4V2
• Average Customer Review: 4.5 out of 5 stars  See all reviews (4 customer reviews)
• Amazon Best Sellers Rank: #34,881 in Electronics (See Top 100 in Electronics)

Product Description

Class A/B Four-Channel Full-Range Amplifier * Absolute Symmetry™ Class A/B Circuit * Differential-Balanced Input Topology: 2 pair of inputs * On-board Crossover: Fully-variable (50 Hz - 5 kHz), selectable-slope / mode (12 or 24 dB / octave, LP or HP) for each pair of channels * Speaker output connections: Accept up to 8 AWG wire * +12V and Ground connections: Accept up to 4 AWG wire * Rated Power (4 Channel Mode): 75 W RMS x 4 @ 1.5 ohm-4 ohm (11V-14.5V) * Rated Power (Bridged to 2 Channel): 150 W RMS x 2 @ 3 ohm-8 ohm (11V-14.5V) * S/N Ratio: >108.5 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) * Frequency Response: 5 Hz - 30 kHz (+0, -1dB) * THD at Rated Power: <0.03% @ 4 ohm per ch. * Damping Factor: >200 @ 4 ohm per ch. / 50 Hz; >100 @ 2 ohm per ch. / 50 Hz * Slew Rate: ±25 V / µS @ 4 ohm per ch. * Left to Right Channel Separation: >75 dB @ 1 kHz * Input Range: Switchable from 200mV-2V RMS to 800mV-8V RMS * Dimensions (L x W x H): 13.40 x 9.25 x 2.36 in.; 340 x 235 x 60 mm

Customer Reviews

Most Helpful Customer Reviews

4 of 4 people found the following review helpful:

5.0 out of 5 stars Clean sound and unmatched features!, July 24, 2010

By 

B. Rodgers "Gadget Geek" (Officially Undisclosed) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: JL Audio 300/4V2 Car Audio 4-Channel Amplifier 300 Watts (Electronics)

Paying the little bit extra for this over similar amps can actually save you some money, since the balanced inputs let you use it with stock headunits that send out a balanced signal - usually Bose or other factory premium headunits (not that Bose is premium in anything but price, but I digress). It also accepts both low-level and speaker-level inputs, so purchasing a separate line-output converter is not necessary if you're running it off of a headunit that doesn't have low-level outputs. The signal sensing technology lets you get away without running a remote power signal if using the speaker-level inputs, which is particularly helpful if you are still running a stock headunit which doesn't have such a wire already.

So basically, this amp can be connected to any aftermarket or factory headunit without adding anything but power and audio signal wires.

As with any amp, make sure you measure the dimensions for where you intend to mount this.

4.0 out of 5 stars Excellent sound quality, power is iffy, December 11, 2011

By 

jkash1234 - See all my reviews

This review is from: JL Audio 300/4V2 Car Audio 4-Channel Amplifier 300 Watts (Electronics)

This amp has very impressive sound quality and has virtually zero feedback on my speakers ever. If you are like me though and sometimes use your system for tailgating or blasting music, be forewarned this amp will NOT push high end speakers all the way. My Alpine type r components 100 watt rms stop getting louder at 3/4 volume, which actually really isnt that loud. I have tried other 4 channel amps that push the speakers twice as hard (like fosgate 400/4) but I always come back to this because the sound quality is unmatched.

As long as you dont want to pump your system (Like on a boat) this amp will make you happy.

4.0 out of 5 stars Very Good, July 24, 2011

By 

lechalan - See all my reviews

This review is from: JL Audio 300/4V2 Car Audio 4-Channel Amplifier 300 Watts (Electronics)

This amp works perfect in every way. You need a very good speaker system in order to really apreciate the power of this...

Amazon has the cheapest you will find, i payed over 70 bucks buying it at the JL Audio store...