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5-Channel Class D Car/Marine System Amplifier, 75 W x 4 @ 4 Ω + 300 W x 1 @ 2 Ω - 14.4V
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The XDM700/5 is ideal for a complete audiophile-grade, subwoofer + four satellite system, and fits comfortably in just about any vehicle or vessel. With this incredible little amplifier, you can drive two pairs of quality component speaker systems with plenty of clean power (75 W x 4 @ 4 Ω), while also generating a solid 300 W of power for a subwoofer system. The technology that makes this much power possible in such a small chassis is our high-speed NexD™ switching amplifier design.
Suitable for car or boat installations, the XDM700/5 is built with marine-grade materials and features an exclusive, dual-mode input filter for noise-free performance in boats or cars. Automatic turn-on capability (via signal sensing or DC-offset sensing) is also onboard for easy factory system upgrades.
The XDM700/5 includes a 12 dB / octave high-pass filter for one main channel pair, a 12 dB octave high-pass or bandpass filter for the other main channel pair, plus a variable slope low-pass filter for its subwoofer channel. All three filters offer continuously variable cutoff frequency selection from 50-500 Hz. This amplifier's filters can also be configured as a true 3-way crossover, with a low-pass filter for the subwoofer channel, a bandpass filter on Ch. 3 & 4, and a high-pass filter on Ch. 1 & 2. An 'x10' multiplier switch on the Ch. 1 & 2 high-pass filter allows its cutoff frequency to be adjusted from 50-500 Hz or 500-5000 Hz. With the addition of an optional HD-RLC or MHD-RLC (water-resistant) remote level controller (each sold separately), you have the ability to adjust the level of all amplifier channels or just the subwoofer channel directly from the driver's seat or helm.
Finished in a sleek, black powder-coat, all controls are protected beneath a gasketed, removable top cover for easy access.
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Main Channels @ 4 Ω | 75 W RMS x 4 |
Main Channels @ 2 Ω | 100 W RMS x 4 |
Main Channels - Bridged @ 4Ω | 200 W RMS x 2 |
Subwoofer Channel @ 4 Ω | 180 W RMS x 1 |
Subwoofer Channel @ 3 Ω | 240 W RMS x 1 |
Subwoofer Channel @ 2 Ω | 300 W RMS x 1 |
Subwoofer Channel @ 1.5 Ω | N/A |
Main Channels @ 4 Ω | 60 W RMS x 4 |
Main Channels @ 2 Ω | 90 W RMS x 4 |
Main Channels - Bridged @ 4Ω | 180 W RMS x 2 |
Subwoofer Channel @ 4 Ω | 180 W RMS x 1 |
Subwoofer Channel @ 3 Ω | 240 W RMS x 1 |
Subwoofer Channel @ 2 Ω | 300 W RMS x 1 |
Subwoofer Channel @ 1.5 Ω | N/A |
Frequency Response (Main Channels) | 12 Hz - 22 kHz (+0, -1dB) |
Frequency Response (Subwoofer Channel) | 10 Hz - 1 kHz (+0, -1dB) |
S/N Ratio, referred to highest rated power (Main Channels) | >104 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) |
S/N Ratio, referred to 1 W | >84 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) |
Damping Factor @ 4 Ω | >150 / 50 Hz |
Damping Factor @ 2 Ω | >75 / 50 Hz |
THD+N @ Rated Power (Main Channels) | <1% @ 2 Ω per Ch. |
THD+N @ Rated Power (Subwoofer Channels) | <1% @ 2 Ω per Ch. |
Input Voltage Range @ RCA Inputs | 200 mV - 4 V RMS |
Min.Copper Power / Ground Wire Gauge | 4 AWG wire |
Fuse Rating | 60 A (AFS, AGU or MaxiFuseâ„¢) |
Filter Mode(s): Channels 1 & 2 (front) | High-Pass only |
Filter Slope(s): Channels 1 & 2 (front) | 12 dB/octave |
Filter Frequency Range: Channels 1 & 2 (front) | 50 Hz - 5 kHz |
Filter Mode(s): Channels 3 & 4 (rear) | High-Pass or Bandpass |
Filter Slope(s): Channels 3 & 4 (rear) | 12 dB/octave |
Filter Frequency Range: Channels 3 & 4 | 50 Hz - 500 Hz |
Filter Mode(s): Subwoofer Channel | Low-Pass only |
Filter Slope(s): Subwoofer Channel | 12/24 dB/octave |
Filter Frequency Range: Subwoofer Channel | 50 Hz - 500 Hz |
Detented, Calibrated Filter Freq. Potentiometers | Yes |
Filter Defeat Function | Yes |
Infrasonic Filter: Subwoofer Channel | none |
Remote Level Control | Optional HD-RLC or MHD-RLC (water-resistant) |
Remote Level Modes | Sub Ch. or All Channels |
Channel Input Mode Switch | Yes (2/4/6 ch.) |
Pass-Through Preamp Output | None |
Source Channel Selection for PreOuts | N/A |
Height (H) | 2.05 in / 52 mm |
Width (W) | 10.23 in / 260 mm |
Depth (D) | 7.09 in / 180 mm |
Net Weight | 6.15 lb / 2.79 kg |
Summary:
NexDâ„¢ 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 NexDâ„¢ 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 NexDâ„¢ 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 NexDâ„¢ amplifiers and channels we applied a variable, ultra-high speed version of the NexDâ„¢ 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.
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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.
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Summary:
JL Audio’s Differential-Balanced Inputs are engineered to combat induced cable noise, which is a common problem in car and marine audio installations. This technology allows for the use of conventional RCA cables, while delivering many of the benefits of a true balanced connection and accepting a wide range of input signal levels.
Detailed Information:
Today’s vehicles are equipped with sophisticated electronics capable of generating noise and interference that can intrude into the audio path, ruining the listening experience.
Most audio equipment uses single-ended, ground-referenced RCA jacks to receive audio signals. This means that the RCA shield is connected directly to signal ground. This is a simple, cost effective input design that works well for short runs in noise free environments. In noisier environments, this method cannot reject the common mode noise that could be on both RCA conductors (shield and center conductor).
By having more than one chassis-grounded RCA shield on a device, single-ended input designs are also more susceptible to ground loops. If noise is present on both conductors while the shield is connected to ground, the input amplifier will amplify the noise relative to the grounded RCA shield. When there are multiple RCA connections or any other conductors subjected to a magnetic field, this will cause a difference in potential across the RCA loop to be amplified at the grounded RCA as noise (a classic ground loop).
JL Audio’s Differential-Balanced Input circuits measure the center pin of the RCA connection relative to the RCA shield, even when the shield is not connected to ground, and even when the voltages at both conductors are moving relative to ground. Because both the center conductor and the shield see high impedance to ground at the input, a ground loop cannot be formed, as there is no current flow to induce a voltage as noise. This works equally well with differential-balanced, or unbalanced signal sources, making this input architecture compatible with all standard car and marine audio equipment, using standard, unshielded, twisted-pair RCA cables. No special cables are required, unlike the fully balanced connections used in professional audio.
Another benefit of the Differential-Balanced Input design is that it easily accepts low-level and high-level signals from a variety of factory head unit outputs and amplifiers, including single ended “ground referenced†sources, as well as Balanced or Unbalanced “Bridged or BTL†sources. This eliminates the need for Line Output Converters (LOCs) in most installation scenarios.
The obvious question is: “Why don’t all car audio amplifiers use Differential-Balanced Inputs?†The answer is simple: it costs more. Executing a proper differential-balanced input section requires more components and better quality components than a basic single-ended design, so you generally won’t find them on less expensive amplifiers.
Download  XDM700/5 Product ManualÂ
USA Limited Warranty: Â Two (2) years from the original date of purchaseWarranty Details
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Find the answers to many common questions:
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You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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