Name: JL Audio HD1200/1 - New (Damaged Packaging, Product A+)
Brand: JL Audio
SKU: ls-hd12001-obc
Price: 1420.38 USD
Availability: Discontinued
Rating: 4.9091 (11 reviews)

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Product videos

Product highlights

• RMS: 1200 watts x 1 @ 4 ohm, 1200 watts x 1 @ 2 ohm, 1200 watts x 1 @ 1 ohm
• Total RMS Power: 1200 watts
• R.I.P.S. - Regulated, Intelligent Power Supply
• Single Cycle control - High Fidelity Class D
• 1 Pair of Buffered Preamps RCA Outputs
• Dimensions: 10.74" L x 7.85" W x 1.93" H

Learn more about the ls-hd12001-obc

Product Highlights

Description

Authorized dealer

Item Condition - New, Damaged Packaging:

The product is brand new with only the packaging not being in perfect condition. This occurs sometimes because our warehouse teared the box or it was slightly damaged during shipment to our warehouse.

HD1200/1 Features:

Item Condition: Like New, Open Box, Complete
Not Refurbished

JL Audio HD Series Monoblock Class D Amplifier
*RMS Power Rating (11V-14.5V):

4 ohm: 1200 watts x 1 chan.
3 ohm: 1200 watts x 1 chan.
2 ohm: 1200 watts x 1 chan.
1.5 ohm: 1200 watts x 1 chan.

Class D, switching type with patented Single-Cycle Control™ technology
Pulse width modulation-regulated switching power supply
LED power (green), protect (red) and low impedance (amber) indicators
Removable Power/Ground and Speaker connectors
Brushed aluminum finish chassis
Compact, stackable chassis design
Black powder-coated, gasketed cover
RealSink™: Vertical, cast alloy fins effectively dissipate heat
Advanced Thermal Rollback protection system
R.I.P.S. - Regulated, Intelligent Power Supply
Single Cycle Control - high-fidelity, full-range class D

Compares the real PWM waveform and then corrects it in each and every cycle
(over 400,000 times per second)
80% efficiency at 1/2 rated power for the whole amplifier, including its power supply
60% less current draw than a typical Class A/B car amplifier of equal power
Less generated heat, smaller chassis than a similarly powerful Class A/B design.

Noise-killing, highly flexible differential-balanced inputs
1 Pair of Buffered preamp RCA outputs for daisy chaining the audio signal
Speaker level inputs via RCA (JL Audio XD-CLRAIC2-SW required and sold separately
Remote bass level input (JL Audio HD-RLC required and sold separately)
Optional stacking equipment for HD amplifiers: JL Audio HD Stack Kit
Selectable input voltage/sensitivity:

Low level: 200mV - 2V
High level: 800mV - 8V

Selectable output polarity, "Phase": 0/180°
Selectable State-variable slope: 12 dB/octave Butterworth or 24 dB/octave Linkwitz-Riley
Selectable infrasonic filter, "Subsonic": Defeatable or 30 Hz
Selectable filter modes: Low-Pass or High-Pass, Defeatable
Cutoff Freq. Range: Continuously variable: 50 - 500 Hz
Total Harmonic Distortion: <0.03% @ 4Ω (Average at 1kHz)
Signal to Noise Ration:

Referred to Rated Power: 111 dBA
Referred to 1 Watt: 82.2 dBA

Frequency response: 6 - 8,000 Hz (+0, -1 dB)
Damping Factor: >500 @ 4Ω/50 Hz, >250 @ 2Ω/50 Hz
Recommended fuse rating: 100A x 1 (inline, not included)
Dimensions: 10.74"L x 7.85"W x 1.93"H
**4 gauge OFC power and ground wiring is recommended for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier. Click Here for our contact information.

Authorized Internet Dealer
90 Day Manufacturer's Warranty

Check out the JL Audio HD1200/1 Owner's Manual

Notes from JL Audio:

*If you connect a load higher than 4Ω nominal, power will drop by half with every doubling of impedance above 4Ω stereo. If you connect a load lower than 1.5Ω nominal, the amplifier protection circuitry activates a "safe" mode which reduces amplifier power to protect the circuitry from failure (the LED status indicator on the control panel will light up amber to indicate that this has happened). See page 14 for details.
**We do not recommend the use of “copperclad aluminum wire” or "CCA" wire because this wire is significantly less conductive than pure copper wire. Only use pure copper power wire, such as JL Audio’s Premium Power Wire. Tinned copper wire (silver color) is acceptable as the tin-plating is only a very minor component of the wire.
**The HD1200/1's "+12 VDC" and "Ground" connections are designed to accept 4 AWG power wire. 2 AWG or 1/0 AWG pure copper wire is recommended for any power wire run longer than 72 inches (180 cm). This larger wire should be reduced to 4 AWG using a distribution block within 36 wire inches (90 cm) of the amplifier's "+12 VDC" connector. For runs shorter than 72 inches, 4 AWG pure copper power wire is acceptable

Specifications & Details

Power Specifications - Subwoofer Channel

RMS Power @ 4 ohms

1200 watts x 1 channel

RMS Power @ 2 ohms

1200 watts x 1 channel

RMS Power @ 1 ohm

1200 watts x 1 channel at 1.5 ohms

Amplifier Specifications

Amplifier Class

Number of Channels

1 - Mono

Total Peak Power Output

1200 watts

Total RMS Power Output

1200 watts

Maximum Input Gauge Size

2 AWG

Minimum Impedance Unbridged

1.5 ohm

THD at Rated RMS Power

Speaker Level Inputs

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

Subsonic Filter

30 Hz

Signal-to-Noise Ratio

110 dB

Remote bass/level controller

Optional (Accessory required and sold separately)

JL Audio HD-RLC

Warranty and Return Policy

Parts Warranty Duration

90 days

Labor Warranty Duration

1 year

Warranty Provider

Manufacturer

Customer Ratings & Reviews

JL Audio HD1200/1 - New (Damaged Packaging, Product A+) thumbnail image

Overall rating distribution

5 star		91%
4 star		9%
3 star		0%
2 star		0%
1 star		0%

Filter by Star Rating

Show only Verified Purchases

By feature average rating

Durability		4.9
Value		4.8
Features		5
Design		4.9
Usability		5

Customer Reviews

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jl 1200/1

The following review is for HD1200/1, which is a part of the bundle you are viewing.

Great amp make sure you upgrade your electrical alternator and battery uses a lot of power.

By kurt on September 22, 2012

67 found this helpful

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No one does it like jl audio

The following review is for HD1200/1, which is a part of the bundle you are viewing.

I have run many systems over the years but none have compared to my current setup the staff at sonic have always led me in the rite direction this system rocks will blow you away crystal clear clean audio with all the bass one could ever want or need Once again thanks sonic

By Steve on January 21, 2014

63 found this helpful

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sweetness

The following review is for HD1200/1, which is a part of the bundle you are viewing.

Bought this amp to run a 12w6v2, and wow, thats all I have to say. well worth the money, and if I want to add a second sub I always can. It will handle them both easy. A bit pricey, but im sure it will be the last sub amp i buy for a long time.

By greg on June 21, 2012

54 found this helpful

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Bullet proof

The following review is for HD1200/1, which is a part of the bundle you are viewing.

I use one of these to power a 13w7 and it gives it every thing it can handle and more. The noise floor is non existent like the amp is silent completely until the music starts. And it barely gets warm even after hours of play on long trips and myself I have never had a shit down or anything. And all I have for electrical is stock 120amp alt 4 Gauge ran back to a 1000 watt capable secondary battery and 1/0 run from that bat to the amp and it’s so efficient I barely have any headlight flicker. I have been banging this amp for 6 years and could not be happier. I wonder how many so called better for cheaper amps have burned up in the 6 years I have had this amp. Yea it’s not cheap but if your serious about your audio like me and you plan to keep the stuff or actually want to get something back out of it if you do sell do yourself a favor and just save a little longer and get the good stuff the first time instead of doing like a lot of noobs and saying well this amp says 1500 Watts at 1ohm I will get that for half price, trust me you ain’t getting what you think. I dare you to compare this amp to any amp under 5k Watts that’s a unregulated amp and I bet this one in the car actually playing music is louder. I myself have a DC 2k and the HD 1200/1 is every bit as loud or louder on less electrical and less cone area on the sub.

By Anonymous on July 25, 2018

47 found this helpful

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Unreal SQ and SPL

The following review is for HD1200/1, which is a part of the bundle you are viewing.

bought two of these bad boys to power 2 12w7AE's in a custom built ported box. however i only hooked up 1 amp to 1 sub.. and being honest it was twice as loud as my previous setup of 1 rockford t2d412 powered by a pdxm12. i cant imagine hooking the other amp and sub it would make me deaf. the sound quality is superb, doesnt need much power it will stay at 1200rms even at 11v and barely get warm. i would recommend this amp to anyone and everyone i know. ive had several different brands over the years and this one is by far the best if you are looking for both SQ and SPL

By sharma on October 2, 2015

37 found this helpful

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Wicked Amps

The following review is for HD1200/1, which is a part of the bundle you are viewing.

Again, I did a lot of research on the amps to pair with my JL Audio C7’s. And these were by far the best. Very well made and with the intelligent power supply, They get nowhere near as hot. I have fans wired into my system which have yet to come on. The sound is amazing, and you hear every level of detail with no distortion. Paired with a my 13W7AE, this thing is a beast!!

By Anonymous on August 4, 2018 Checkmark Icon

Verified purchase

33 found this helpful

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The following review is for HD1200/1, which is a part of the bundle you are viewing.

By Donald on October 1, 2022 Checkmark Icon

Verified purchase

30 found this helpful

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Little Beast

The following review is for HD1200/1, which is a part of the bundle you are viewing.

This amp is worth the price. It produces strong, clear, and precise bass. It will not strain your battery or alternator, just be sure to run a quality 2-4 gauge power and ground. This amp will outperform any 1200 watt amp on Earth, as it should for the price!

By J Coogies on February 25, 2026 Checkmark Icon

Verified purchase

1 found this helpful

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The following review is for HD1200/1, which is a part of the bundle you are viewing.

By William on March 10, 2025 Checkmark Icon

Verified purchase

1 found this helpful

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The following review is for HD1200/1, which is a part of the bundle you are viewing.

By James on February 24, 2025 Checkmark Icon

Verified purchase

1 found this helpful

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See all 11 reviews

Add-ons

Stinger SS2400XS

1/0 Gauge Amplifier Power Kit w/ Blue Twisted RCA & Satin Acc w/ Anl Fuse Stinger

(3)

$149.99

List price $329.00

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JL Audio HD1200/1 - New (Damaged Packaging, Product A+)

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This item has been discontinued

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