M1000/1v2

Monoblock Class D Marine Subwoofer Amplifier, 1000 W x 1 @ 2 Ω / 600 W x 1 @ 4 Ω – 14.4V

This potent monoblock subwoofer amplifier employs our high-speed NexD™ switching design to achieve unprecedented efficiency and amazing power output in a very compact chassis. The M1000/1v2 is capable of delivering 1000 W of continuous power into a 2 ohm load (14.4V, 1% THD), making it a great choice to drive higher power subwoofer systems.

Designed specifically for subwoofer applications, the M1000/1 includes a variable slope low-pass filter with continuously variable cutoff frequency selection from 50-500 Hz and a defeatable infrasonic filter (30 Hz, 24 dB/oct.).

With the addition of an HD-RLC remote level control (sold separately), the amplifier’s subwoofer output level or master volume for all channels can be directly controlled from the helm. The M1000/1v2 also features the v2 Spec feature set, which consists of automatic turn-on capability (via signal sensing or DC-offset sensing), and a dual-range differential-balanced input section able to handle a wide range of input voltage levels.

This amplifier features white and gray powder-coat finish, a gasketed cover for the controls and stainless steel hardware for durability in the marine environment.

@ 4 Ω	600 W RMS x 1
@ 3 Ω	800 W RMS x 1
@ 2 Ω	1000 W RMS x 1
@ 1.5 Ω	N/A

@ 4 Ω	500 W RMS x 1
@ 3 Ω	650 W RMS x 1
@ 2 Ω	800 W RMS x 1
@ 1.5 Ω	N/A

Frequency Response	7 Hz – 500 Hz (+0, -1dB)
S/N Ratio, referred to highest rated power	>83 dB below rated power (A-weighted, 20 Hz – 20 kHz noise bandwidth)
S/N Ratio, referred to 1 W	>53 dB (A-weighted, 20 Hz – 20 kHz noise bandwidth)
Damping Factor @ 4 Ω	>1000 / 50 Hz
Damping Factor @ 2 Ω	>500 / 50 Hz
THD+N @ Rated Power	<1% @ 2 Ω per Ch.
Input Voltage Range @ RCA Inputs	Switchable from 200 mV – 2 V RMS (Low) to 800 mV – 8 V RMS (High)
Min.Copper Power / Ground Wire Gauge	4 AWG wire
Fuse Rating	80 A (AFS, AGU or MaxiFuse™)

Filter Mode(s)	Low-Pass only
Filter Slope(s)	12/24 dB/octave
Filter Frequency Range	50 Hz – 500 Hz
Detented, Calibrated Filter Freq. Potentiometer	Yes
Filter Defeat Function	Yes
Infrasonic Filter	30 Hz, defeatable
Bass Boost EQ	No
Output Polarity Switch	No
Remote Subwoofer Level Control	Optional (HD-RLC)
Remote Bass EQ Boost Control	No
Pass-Through Preamp Output	Buffered

Height (H)	2.05 in / 52 mm
Width (W)	14.73 in / 374 mm
Depth (D)	7.09 in / 180 mm

NexD™ Switching Technology

Summary:
NexD™ amplifier technologies produce exceptional audio quality, unsurpassed total efficiency and high power from very compact amplifier designs.

Detailed Information:
Beginning with the original ‘Slash’ subwoofer amplifiers, JL Audio has been at the forefront of Class D amplifier design. Our NexD™ switching technology stems from our Class D expertise to deliver outstanding fidelity and efficiency, leading to compact amplifiers that deliver high power and exceptional value.

Let’s get a little nerdy… A traditional PWM switching amp design uses a fixed switching frequency and varies the pulse width based solely on the audio input signal to the pulse modulator. This basic approach assumes some ideal conditions, like a rock-steady power supply, that do not necessarily occur in a real, in-car installation. Power supply sag with signal causes distortion at all power levels with these designs, even well below clipping. The cure for this is feedback (a corrective signal sent back to the input side), but this becomes impractical as the audio frequency increases, making it a good solution for band-limited (subwoofer) amps, but not for full-range amplifiers.

Taking the above into account when designing the NexD™ subwoofer amplifiers, we have taken the simple fixed PWM approach and enhanced it with a very high switching frequency: 240 kHz, which is about 4x higher than most Class D subwoofer amplifiers. This pushes the amplifier’s bandwidth to at least 500 Hz with minimal distortion and improves efficiency, while keeping typically bulky circuity more compact. Your subwoofers will reward you with tight, rock-solid bass performance.

For the full-range NexD™ amplifiers and channels we applied a variable, ultra-high speed version of the NexD™ technology (switching at well over 400 kHz). In these designs, a self-oscillating modulator with “feed-forward” sends information about the instantaneous power supply voltage to the modulator, combining this with the input signal to cancel out any distortion due to supply voltage fluctuation. This reduces distortion prior to applying feedback, simplifying the overall feedback loop design.

The bottom line is simply great audio: clean, powerful and reliable.

Advanced Rollback Protection

Summary:
JL Audio’s exclusive Advanced Rollback Protection circuit monitors the amplifier’s thermal condition and adjusts amplifier operation to eliminate annoying amplifier shut-down events.

Detailed Information:
Should a JL Audio amplifier equipped with Advanced Rollback Protection reach an unsafe operating temperature, a special circuit rolls back peak power output, without changing gain, until the amplifier cools down to a safe operating temperature. The condition is generally indicated by a red “Thermal” or “Status” LED state. On VXI amplifiers, the LED ring will flash red. Once the amplifier cools down, the circuit restores full peak power output and the indicator reverts to its normal state. The operation of Advanced Rollback Protection is inaudible in most cases, but it ensures that your music keeps on playing, even under the most demanding conditions.

Download  M1000/1v2 Product Manual

 

USA Limited Warranty:  Two (2) years from the original date of purchaseWarranty Details

 

Find the answers to many common questions:

 

Voted “Favorite Stereo Manufacturer”
– 2011 Reader’s Choice Awards, Powerboat Magazine

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“Our customers are thrilled with the incredible sound quality of the JL Audio systems we’re installing in our boats.”
– Ariel Pared, SeaVee Boats

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“We tested a boat with a complete JL Audio system… The clarity and power emitted by this system was second to no other boat system on any boat, of any size, we have ever heard. It was a truly amazing experience.”
– Tony Adelo, Mayor’s Cup Magazine

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“My JL Audio sound system can turn a bad day of fishing into a fun day on the water.”
– Captain Rimmer Covington, Owner – Mexican Gulf Fishing Company