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JL Audio Slash v2 Series 500/1v2

Mono subwoofer amplifier
500 watts RMS x 1 at 2 ohms

15 Reviews

Item # 1365001V2

This item is no longer available.

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Our take on the JL Audio Slash v2 Series 500/1v2

The 500/1v2 mono amplifier puts out 500 watts RMS of clean power to your subwoofer system, and JL Audio's patented Class-D amp circuitry keeps a tight rein on cone movement. The cast aluminum heatsinks dissipate heat quickly, giving these amps long lifespans and reliable operation. You'll find all controls, inputs, and outputs on the front panel, for easy access and a neat installation.

Consistent power for performance you can count on

Control panel

JL Audio's Slash v2 amplifiers aren't just powerful, they're smart. As your battery voltage fluctuates while you drive, the Regulated, Intelligent Power Supply™ system maintains steady, consistent power at any impedance between 1.5 and 4 ohms and at any voltage between 11 and 14.4 volts. You'll get all the power, all the time, even with a wide range of speaker combinations.

Rock solid power for your sub

The 500/1v2 mono amplifier puts out 500 watts RMS of clean power to your subwoofer system, and JL Audio's patented Class-D amp circuitry keeps a tight rein on cone movement. The cast aluminum heatsinks dissipate heat quickly, giving these amps long lifespans and reliable operation. You'll find all controls, inputs, and outputs on the front panel, for easy access and a neat installation.

Minimize external noise

Differential inputs for low noise

JL Audio amps use "differential-balanced inputs" to isolate the signal's ground from the chassis ground, reducing noise and making Slash v2 amplifiers compatible with almost any system, including most factory radios.

Fingertip control

Tunable frequency filters and a parametric EQ bass boost give you precise control over your bass sound, and the optional RBC-1 wired remote lets you dial in the right amount of thump from the front seat.

Wired remote control kit

Confused about impedance? Check out our article on matching subs and amps.

Product Highlights:

  • mono subwoofer amplifier
  • 500 watts RMS x 1 at 1.5 to 4 ohms
  • Regulated, Intelligent Power Supply system
  • differential-balanced inputs
  • variable low-pass filter (40-200 Hz, 12 or 24 dB/octave)
  • parametric EQ bass boost (0-15 dB at 20-80 Hz)
  • variable infrasonic filter (-24 dB/octave at 15-60 Hz)
  • optional wired remote bass boost
  • Class-D amplifier design
  • MOSFET power and output stages
  • speaker- and preamp-level inputs (speaker-level input requires an optional adapter)
  • preamp outputs
  • 4-gauge power and ground leads and a 50-amp fuse recommended — wiring and hardware not included with amplifier
  • no onboard fuses — when installing multiple amps in a system, an additional 50-amp in-line fuse between the distribution block and the amplifier is recommended
  • 13-7/16"W x 2-5/16"H x 10-1/16"D
  • warranty: 2 years
  • Our 60-day money-back guarantee

This is a top quality item. I have this pushing 1 Alpine type r 12" and this puts out excellent clean POWER. The fact that this amp produces the same power any impedence makes it very flexible so you can be less concerned on your subwoofers ohms. Go buy this AMP!!!

William, Charlotte NC

What's in the Box:

  • Mono-channel amplifier
  • 2.5mm Hex-wrench
  • Owner's Manual

JL Audio Slash v2 Series 500/1v2 Reviews

Average Customer Review(s):

(15 Reviews)

I bought this used?

LinoR from Brownsville, TX on 2/8/2012

Bought this used. There was a screw missing from the top plate towards the heat sink and it looked in kind of very used condition but the guy said I sure wouldn't be disappointed. But I actually was disappointed cause I couldn't find a sub that was affordable and could handle it. Main point is this thing works great I have it on half power and my sub polk 300 rms can barely handle it. Awesomeness that you can tune out the distortion on just about any sub that i'v tried so far. WHO KNOWS what this amp has been thru and ended up with me looking like a worn out donkey and still works like a good donkey who hasn't done any work. DEFINITLY didn't expect that. All I know is this amp WILL get your respect period. (I got mine looking like #$%@). If it don't you don't know what your doing. To tell you the truth I just worry about the subs with this amp. This amp will make you a JL audio believer. Even though there might be competition out there you can't even imagine it after owning this amp.

Pros: Very versatile with the ohms and tuning for almost every sub. Never has gotten hot on me.

Cons: Is I can't afford the subs to handle the amp.

Great 500 Watt Amp

CDA from San Diego on 3/5/2011

I have owned this amp for a long time. I currently have it hooked up to a JL Audio 10 inch W7 in the JL made H.O. (High Output) Box. I have also had this amp hooked up to 2 12inch W3v2's and 1 12inch Alpine Type-R. I currently have the gain turned a little over half way, bass boost completely turned off and my cross over at about 80 HZ with the -24db setting. If i could describe this amp in one word it would be "Consistent." Everytime I get into my 2008 Honda Civic SI Coupe, I can expect the same sound and bass. I have had this amp since 2006, so longevity also comes with the product. The fact that its lasted the longest out of any other amp I've owned is a big selling point for me. When it comes to the bass portion of my car, I will continue to buy JL Audio. Best part of this amp, is it NEVER gets hot with the right sub no matter how long you play it! Don't underestimate the power of this amp. Enjoy!



Above and Beyond

Will from West Chester, OH on 9/28/2010

Crutchfield Customer Review (What's this?)

I have used other products such as kicker and alpine, but JL is simply the best. I have this hooked up to a JL 10 W3 and it sounds amazing. JL simple is the best and I will continue to be a JL customer. This amp makes my sub hit hard no matter what I listen to rock or rap. I will be a life long JL customer... great product




William from Charlotte NC on 4/22/2010

This is a top quality item. I have this pushing 1 Alpine type r 12" and this puts out excellent clean POWER. The fact that this amp produces the same power any impedence makes it very flexible so you can be less concerned on your subwoofers ohms. Go buy this AMP!!!



JL strikes again

Lucas from Fort Drum, NY on 6/13/2009

I had this amp pushing two JL w3v3 8 ohm subs in a wedge running in parallel @ 4 ohms with the signals coming from the factory head unit in BMW 330 sedan and this is yet another reason why I'm biased to JL. A well powered unit that never quits in a sea of over-rated amps. I ran this amp on the factory head unit signals from the rear deck speaker lines (had to remove the deck speakers anyway to "port" the sealed trunk anyway) with a line level converter. With the battery being in the trunk (factory location) and not wanting to wire in an ignition lead, I ran only power and ground wires and used the signal sensing auto turn-on feature and it worked without a flaw over past year without a dead battery once even though the vehicle has sat for a week here and there. Overall this unit is well placed in its market- it can easily power a set of w3s, a single w6 or a w7 (conservatively). I would be shocked if someone were disappointed with this product when used correctly.



Great product

Edward from Clifton, VA on 5/4/2009

Crutchfield Customer Review (What's this?)

This is really a quality piece and you can never go wrong with JL Audio. Prices are high but you get what you pay for. Nothing but clean stable power from this beast and will make your subs pound! Just make sure you follow the tutorials on the JL Audio website for setting the gain to enjoy this amp for years to come. I paired this up with the 10w7 H.O. wedge box and gave JL Audio a call to get a decent setting for the parametric equalizer (Bass EQ) and off I went.




pj from East Texas on 4/11/2009

Crutchfield Customer Review (What's this?)

Bought this amp as an upgrade for my 12 w3/v3 in the trunk of my Accord. I love how this amp is geared specifically for subwoofer bass. I still need to do some fine tuning to get things exactly how I want, but for now this sub absolutely makes my w3 work the way it should. I'll probably upgrade to a w6, now that I know what kind of power this amp throws. I have no capacitors or h/o alternator or any of that in my car, and the amp still performs just as it should with no dimming of lights or loss of sound. I am completely sold on JL high quality bass. Everything sounds just as it should with no distortion, exaggeration or muddying of the sound.



Best Sub Amp

Chris from Northern VA on 3/11/2009

Crutchfield Customer Review (What's this?)

This amp is way better than other mono amps I've tried. I have this pushing two JL W6's, and they sound awesome! I love the fact that you can tune the bass exactly how you want it.




Greg from Anchorage,AK on 3/10/2009

Crutchfield Customer Review (What's this?)

I used to have older JLaudio 2 channel amp bridged to a new type r alpine sub i got and it was nothing compared to this amp this amp bumps hard and constant never lets up im planning to upgrade to 10w6v2 in future and get rid of alpine im completely sold on jl products from here on out amazing stuff



Man, this thing isnt from earth!!!!!!!!!!!!!!!

big U.N.K from San Diego, CALIFORNIA on 9/6/2008

Crutchfield Customer Review (What's this?)

This is one of the best best amps that i ever had in my whole car audio experience!!!!!! I have this beast hooked up with 2 15'' Alpine type 'R's down in to 2 ohms and till this day I still have people stop me in traffic and ask me what I have in the back of my trunk!!! That amp is the only reason that motivates me to have any thing to do with driving! THANK U JL AUDIO for contributing to my hearing loss and disturbing people in their homes and when they are waiting at long traffic lights HA HA HA!!!!!!!!!!!!!!!!!!



WAAAAY Underrated!

KYHO from Great Falls, MT on 4/20/2008

This is an absolutely awesome amplifier! The power and clarity are just fantastic! It says 500 rms, but in reality (as most in car audio know) it is pushing around 700+ rms. Unbelievable tuning capabilities. I purchased the remote bass knob which is an absolute godsend - comes in really handy when using an IPOD and you switch from bass heavy music to older music that has not been mixed as well. This amp is a little pricey, but you get what you pay for. I have run Alpine amps for around the past 10 years and deciced to try something different. IMO the JL amplifiers are in a totally different league. The sound quality is just phenomenal! Negatives - Be really careful, the allen bolts that tighten down the speaker, power, and negative cables are made of really soft metal and will strip easily.




Ryan from PA on 3/4/2008

I have had the 500/1 version 1 for 4 years now, and I am still in love with it. It's hooked up to JL's HO210R-W3v2 sub/box, and it sounds amazing. I still get compliments to this day. The best part of the slash series amplifiers are their flexibility. You have excellent control on the amp, allowing anyone but a true audiophile to bypass an expensive EQ. It took a little work, but I got the system tuned very nicely without any processing before the amp. After 4 years I can honestly say that this thing is a bulletproof performer. In 100+ degree weather, it works perfectly. In below 0 degree weather, it works perfectly. It never overheats, never loses sound quality, and never loses ability to output full power at any voltage. I cannot stress how reliable this amp is. Most amps have 1/10 of the features of this amp, 1/2 of the sound quality and last 1/4 as long. This amp is not expensive, it's a bargain!



Unrivaled for the price

Gregg from Fremont, CA on 2/8/2008

Crutchfield Customer Review (What's this?)

I have been fighting unwanted mid-bass freqs going to my bass enclosure for a year. No more. This amp not only delivers exactly what you ask for, but it does it with a musicality that I have not heard to date. Controls and connectors are very high quality. Blows my old amp away; completely. <BR><BR> My system: Alpine 4.150, JL Audio Slash V2 500/1, Boston Acoustics G212SD, 3-way(5"sub) all four doors, Eclipse 7100, Monster 402XLN cables.



High Quality Instrument

Dome_RBC from San Jose, CA. on 11/16/2007

This is the most beautiful amp I have ever heard. Very clean at high volume, this thing thumps! People talk about clean power, look at total harmonic distortion to know how clean an amp is. I have had many amps and never noticed a difference in high volume quality until I got this.



Sounds great with a 12W6v2

Tad from Indianapolis on 11/10/2007

I purchased the 500/1 black edition and it sounds amazing on a single 12W6v2. It is loud and also sustains sound quality. This is a great combo for any v2 sub, but the 12 is perfect for anything bigger than a two seater. GLAD TO SEE JL going ONLINE!!! SMART IDEA TO TEAM UP WITH THE BEST ONLINE RETAILER!




Hands-on research

Product Research



Mono-Channel Subwoofer Amplifier: The JL Audio 500/1v2 is a class D monoblock subwoofer amplifier that is rated at 500 Watts RMS x 1-channel in 1.5 to 4-ohm at 20 to 250Hz with a signal-to-noise-ratio of  95 dB and a total harmonic distortion of 0.05% while receiving 11 to14.5 Volts. The JL Audio subwoofer amplifier's frequency response is limited to the range of 5-250Hz and is not designed for driving midrange speakers or tweeters. Every aspect of the amplifier's operation has been optimized for low-frequency amplification.

R.I.P.S. (Regulated, Intelligent Power Supply): R.I.P.S. stands for "Regulated, Intelligent Power Supply" and is a central feature of the JL Audio's Slash v2 amplifier. The JL Audio R.I.P.S. System ensures consistent power delivery over a wide range of battery voltages and load impedances. This technology provides optimum power at any impedance level between 1.5 ohm to 4 ohm per channel and at any vehicle voltage level between 11V and 14.5V.

  • Regulated Power Supply: "Regulated" means that the power supply adjusts its operation so as to maintain the amplifier's rated power output and low distortion operation over a wide range of vehicle voltages (11V-14.5 V). This allows the JL Audio Slash v2 amplifier's the rail voltage and clean power output to remain stable in real-world car-audio systems, resulting in superior fidelity and stability.
  • Intelligent Power Supply: The "Intelligent" portion of the R.I.P.S. System is a circuit that actually monitors output current to optimize the amplifier's output power over a wide range of load impedances (1.5 ohm to 4 ohm per channel). The R.I.P.S. System detects the actual impedance being driven and adjusts output rail voltages to deliver optimum output. The entire process is seamless, automatic, and results in incredible dynamics for satellite channels and consistent power output for a wide range of subwoofer configurations. It also takes into account the real impedance of your car-audio system, rather than relying on often inaccurate assumptions based on a speaker's rated impedance.

Monolithic RealSink Plus Advanced Heat Management: This Slash v2 amplifier features a real cast-aluminum heat sink with vertically-oriented fins that are highly effective at dissipating heat from the amplifier via convection and radiation. The design of this heat sink is achieved through extensive finite-element analysis, resulting in an amplifier that keeps cool under the most demanding conditions. If a Slash v2 amplifier should ever reach an unsafe temperature, our unique Advanced Rollback Protection circuit also adjusts power until the amplifier cools down, without ever shutting your music down. As an added cosmetic benefit, the cast-aluminum end-caps of the Slash v2 amplifier replicate one-half of a full heat sink fin so that when two or more amplifiers are mounted end-to-end, you get a totally seamless custom look.

Class D Circuitry: This JL Audio Class D subwoofer amplifier utilizes a proprietary Class D circuit. JL Audio's Patented Class D output circuit utilizes a discrete control section and a unique feedback loop design that results in outstanding power regulation and a damping factor greater than 500 at 4 ohms (>250 at 2 ohms). This is vastly higher than other Class D designs and also higher than most Class A/B amplifiers. The benefit of this exclusive JL Audio technology is tight, clean bass reproduction with the efficiency advantage of Class D amplification.

Differential-Balance Inputs: The JL Audio amplifier features differential-balanced input architecture to effectively control noise and ensure compatibility with a wide variety of source units, including many OEM systems. Without resorting to line output converters, you can directly connect most OEM source units to the JL Audio amplifier without creating any noise or compatibility issues. Unlike conventional single-ended inputs, the differential-balanced design does not connect one side of the audio signal to chassis ground.  This eliminates any voltage sensitivity between one input terminal and ground and greatly reduces the incidence of alternator whine in a typical car audio installation. The Slash v2 amplifier provides range switching on each of its inputs via the "Input Voltage" switch. This permits connection to a wide range of source voltages while retaining excellent sensitivity setting precision.

Note: You will need a speaker wire to RCA adaptor (136XDCLR2S, sold separately) to connect this amplifier to your headunit via speaker-level.

Flexible Preamp Outputs: The Slash v2 amplifier features flexible preamp outputs that make interconnecting multiple amplifiers simple. The 500/1v2 subwoofer amplifier features fully-independent preamp output filters with independent frequency (40-200 Hz), mode (LP or HP) and slope-selection controls (12 or 24 dB). The preamp outputs can also be configured to track the amplifier's low-pass filter directly or as full-range outputs.

Protection Circuitry With Status Indicator Lights: There are three status indicator lights on the top of the amplifier.

  • Power (Green): This LED lights green to indicate that the amplifier is turned on and operating normally.
  • Thermal (Red): This Red LED lights to indicate that the amplifier has exceeded its safe operating temperature, putting the amplifier into a shelf-protection mode, which reduces the power output of the amplifier. The red light will shut off and the amplifier will return to normal, full-power operating mode if the heat sink temperature drops back to a safe level.
  • Low Ohm (Amber): This amber LED lights to indicate that the impedance of the speaker load connected to the amplifier is lower than the optimum impedance load range for the amplifier. When this light is on, a protection circuit engages and reduces the power output of the amplifier. The amber indicator will also light when a short-circuit is detected in the speaker wiring.

Note: There is only one condition that will shut down the 500/1v2 completely and that is if the battery voltage of your vehicle drops below 10 volts.


Simplified Gain Setting: The amplifier's R.I.P.S. feature also allows for easy gain setup. Because the amplifier will always deliver the same amount of power within its operational range of impedances and supply voltages, the maximum, unclipped output is very predictable. This makes setting the gain level of the amplifier via the input sensitivity control very simple. All you need is Digital AC Voltmeter (142TK12V, sold separately) and a Test CD Disc (503CD104, sold separately) with a sine-wave test-tone recorded at 0 dB reference level in the frequency range to be amplified for that set of channels (50 Hz for subwoofer channels).

Active Crossover: The Slash v2 amplifiers provide a comprehensive crossover network to fine tune your system effectively and accurately. The variable filter design employed in the Slash v2 amplifier crossover sections allow you to seamlessly switch slopes, easily change filter frequencies and address what frequencies the preamp outputs will pass. The 500/1v2 offers the following crossover adjustments.

  • Filter/Slope Mode: The amplifier features low-pass 12dB/octave Butterworth or 24dB/octave Linkwitz-Riley alignments allowing for more precise integration of subwoofer. You can also turn the amplifier's filter mode off.
  • Variable Frequency: The amplifier offers fully-variable frequency selection from 40-200 Hz on subwoofer channel filters with a detented frequency selection potentiometer for precise adjustment by sight or feel.

Bass Controls: The bass control functions on the JL Audio subwoofer amplifier include the following.

  • Variable Bass Boost: The amplifier's variable bass boost features a single, parametric band of equalization with variable "Q" (0.5 - 4.3), center frequency (20 - 80 Hz), and boost (0 to +15dB).
  • Infrasonic Filter: This filter is a defeatable, fully-variable 24dB/octave infrasonic filter with adjustable cutoff frequencies from 15-60 Hz. Ultra-low frequencies that cannot be reproduced by a subwoofer do not become sound but become unnecessary oscillations, which affect sound by causing distortion. These frequencies also waste amplifier power and can cause damage to speakers. Setting the Infrasonic filter switch between 15-60Hz cuts the frequencies below the respective frequency to improve the reproduction performance of the speakers by eliminating harmful distortion.
  • Remote Bass Port: The amplifier is equipped with a connection for a wired Remote Bass Control (136RBC1, sold separately) that allows fully variable boost control from the front of your vehicle.


Power and Ground: The JL Audio amplifier's set-screw Power and Ground connections are designed to accept 8 to 4 AWG power wire.

Remote Turn-On: The Slash v2 amplifier's set-screw turn-on lead will accept 18 to 8 AWG wire.

Speaker Outputs: The 500/1v2 amplifier's set-screw speaker terminals will accept 16 to 8 AWG speaker wire.

Note: If your headunit does not have a dedicated remote turn-on output, the amplifier's turn-on lead can be connected to a +12V via a switch that drives power from an ignition-switched circuit. To use this method, select "off" on the "signal sensing" switch of the amplifier's input section.

Preamp Inputs: The amplifier features one set of differential-balanced RCA jack inputs. The amplifier's input level can be set to Low (200mV-2V RMS) when connecting the amplifier to a low-level preamp signal or set to High (800mV-8V RMS) when connecting the amplifier to a high-level speaker signal.

Preamp Outputs: The amplifier also features one set of preamp outputs so you can send audio to another amplifier in your system. The preamp output is switchable and can be set to a Full-Range, Amp Filter or Out Filter.

Note: All inputs, outputs and controls are located on the front side of the amplifier to make installation of the amplifier simple and neat.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.