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Item Dimensions LxWxH
12.3 x 7 x 2.3 inches
Manufacturer
BOSS AUDIO
Brand
BOSS Audio Systems


Get a Little BASS In Your Space

Enjoy superior stability and sound with the BOSS Audio Onyx OX3KD Monoblock Class D Amplifier. With 3000 Watts Max Power and MOSFET power supply, this Amplifier offers stable, powerful Bass for your playlists. Customize the sound with Variable Low Pass Crossover, Variable Bass Boost, Variable Subsonic Filter, Phase Control and Remote Subwoofer Control. Strap this Amplifier to another OX3KD for double the performance. When space is limited but your passion for great sound is not, Onyx Amplifiers with blue illuminated logo are just what the doctor ordered to power up your music and get your heartbeat racing.

  • Class D, Monoblock
  • MOSFET Power Supply
  • 3000 Watts @1-Ohm x 1 Channel MAX Power
  • 1500 Watts @2-Ohms x 1 Channel Max Power
  • 750 Wats @4-Ohms x 1 Channel Max Power
  • 6000 Watts @2-Ohms x 1 Channel Max Strapped Power
  • High and Low Level Inputs
  • Thermal overload speaker and short protection
  • Power and protection LEDs
  • Master / Slave Switch
  • Phase Shift Selector
  • Variable Subsonic Filter
  • Variable Low Pass Crossover
  • Variable Bass Boost
  • Variable Input Gain Control
  • Input Sensitivity Selector
  • Dimensions: L 12.3 x W 7 x H 2.3
  • Weight: 6.7 Lbs.
  • Remote Subwoofer Control

Class D

Class-D amps run more efficiently and generate more power using a more compact design than traditional Class A/B amps.

MOSFET

Metal Oxide Semiconductor Field-Effect Transistors quickly switch from full to non-conduction for high efficiency output.

Strapping Capability

Strap two amplifiers together to get double the power at an impedance of 2-Ohms.

1 Ohm Stable

1-Ohm stable gives you maximum power for superior wattage and performance without overheating. The greater the power the more current drawn from your vehicle's electrical system.

Variable Low Pass Filter

Variable low-pass filter gives you control over the frequencies that pass through to the subwoofer.

Subsonic Filter

Subsonic filter restricts low-frequencies below the specified setting for better subwoofer protection and performance.

Subwoofer Level Control

A wired remote lets you easily control the subwoofer level for customized output and superior sound.

Bass Boost

Variable Bass Boost allows you to adjust the low bass within the boost range to just the way you like it.

Low Level Inputs

Low-level inputs accept pre-amp output signals to allow for the addition of amps and processors to units equipped with RCA Pre-amp outputs.

Variable Input Control

The Variable Input Control allows the amplifier input to match the output signal from the head unit to achieve optimum performance when adjusted properly.

Phase Control

Phase control lets you adjust the speaker phase with the amplifier if your speakers or subwoofer are hooked up 'out of phase'.

Switchable Input Sensitivity

Switchable input sensitivity provides adjustable control over input signal from the head unit to achieve customized balance between power and sound quality.

Power Input Terminals

When installing all Boss Audio Systems amplifiers, it is important to use the MAXIMUM gauge of wire that the power terminals will accommodate. For instance, if an amplifier has 4-gauge power and ground terminals, use high quality 4-gauge multi-strand copper wire to make your power connections. This maximizes the amplifier’s ability to draw the required power upon demand. This also helps prevent overheating that could cause failure. ALWAYS make sure your vehicle’s electrical system is capable of handling the current demands from any after-market accessory.

Please refer to the amplifier’s owner’s manual for correct wire gauge sizes.

Fuses

Fuses protect BOTH the amplifier and the electrical system of your vehicle from faulty conditions.

If you must replace a fuse on the amplifier, always use a fuse of exactly the same type and rating of the one you are replacing. A different type of fuse or rating may result in damage or cause a fire. Please refer to your owner’s manual for reference on fuse size and type.

If you plan on using multiple amplifiers in your system, be certain that you have the appropriately sized gauge wire to accommodate the current demands for all amplifiers and that the wire is fused correctly at the battery. Connect an empty fuse holder within 18" (45 cm) of the car battery and run a 4-gauge (or heavier) cable from this fuse to the amplifier location. A fused distribution block is recommended when using several amplifiers or accessories.

Proper Grounding

Proper grounding is essential for any electric accessory in a vehicle.

Some key points to remember: Keep the ground as short as possible. Connect the amplifier’s power ground terminal to the closest point on the chassis of the car. Keep this ground wire to less than 39" (100 cm) in length. Use 4-gauge (or heavier) wire. Scrape any paint away, use a star washer to “bite” into the metal and secure it tightly using a grounding lug.

Any steps that aren’t followed properly will result in a higher resistance at the ground point, causing unnecessary heat, high current draw, and potentially damaging the electrical accessories in the vehicle.

Gain / Input Sensitivity

The “Gain” or “Input Sensitivity” selectors on an amplifier are not to be mistaken for a volume setting. This setting allows users to match the gain from the source unit.

To set these selectors properly, you must “defeat” any processing on your source unit. In other words, make sure Bass, Treble, and Subwoofer levels are set to “0” on your source unit before adjusting the gain or input sensitivity selector on your amplifier.

Features & details

Features

  • POWER: 3000 Watts Max x 1 @1-Ohm, 1500 Watts Max x 1 @2-Ohms. DIMENSIONS: The OX3KD is 12.3 inches in Depth, 7 inches in Width and 2.3 inches in Height. It weighs 6.5 lbs.
  • CLASS D: Power loss is significantly reduced making the amplifier highly efficient. Excess energy is stored until it’s needed instead of being converted into heat. Reduction in size/weight, reduced power waste, smaller heat sink, compact circuitry
  • 1 OHM STABLE: Able to continuously power loads of 1 Ohm without encountering difficulties such as overheating. Typically made to power up subwoofers that demand the heavier power load requirements to be able to perform the way they were made to
  • STRAPPING CAPABLE: You are able to strap TWO OX3KD amplifiers and double the power that is being sent to your subwoofer(s). You now have the ability to connect more subwoofers to take advantage of the extra power
  • WARRANTY: BOSS Audio Systems provides a powerful 6 year Platinum Online Dealer Warranty so long as the purchase is made through Amazon.Com. We strongly encourage professional installation of this product to ensure proper and safe functionality

Product information 3000W Monoblock

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Q: What''s the rms rating?

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Customer reviews

4.2 out of 54.2 out of 5
37 global ratings

Top reviews from the United States

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cameron whitney
1.0 out of 5 starsVerified Purchase
had to be replaced, both the original and replacements do not work streight from box.
Reviewed in the United States on July 31, 2021
Style: 3000W Monoblock
I am normally a huge fan of boss audio products, I recently baught one of the boss audio elite decks along with 2 new 800W boss audio elite 10" subs. I had the quiet riot amp before but it just doesnt have the power needed. I baught this one and had to send it back because... See more
I am normally a huge fan of boss audio products, I recently baught one of the boss audio elite decks along with 2 new 800W boss audio elite 10" subs. I had the quiet riot amp before but it just doesnt have the power needed. I baught this one and had to send it back because it clipped from factory. I have it the benefit of the doubt and got a replacement one and completely fresh out of the it just streight doesnt work. I plugged the old amp in before and after and it works. very dissapointed at this. 2 separate amps both faulty at factory. I personally wouldnt suggest this amp, atleast not from this retailer.
I am normally a huge fan of boss audio products, I recently baught one of the boss audio elite decks along with 2 new 800W boss audio elite 10" subs. I had the quiet riot amp before but it just doesnt have the power needed. I baught this one and had to send it back because it clipped from factory. I have it the benefit of the doubt and got a replacement one and completely fresh out of the it just streight doesnt work. I plugged the old amp in before and after and it works. very dissapointed at this. 2 separate amps both faulty at factory. I personally wouldnt suggest this amp, atleast not from this retailer.
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David
4.0 out of 5 starsVerified Purchase
great product
Reviewed in the United States on August 24, 2021
Style: 3000W Monoblock
only thing i didnt like was the remote doesnt seem to use the full gain control
only thing i didnt like was the remote doesnt seem to use the full gain control
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Amazon Customer
5.0 out of 5 stars
Excelente 👌
Reviewed in the United States on April 6, 2021
Style: 3000W Monoblock
Muy bueno.
Muy bueno.
2 people found this helpful
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MackD
5.0 out of 5 starsVerified Purchase
It nice for the power it has
Reviewed in the United States on April 26, 2021
Style: 3000W Monoblock
None
None
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Kenneth Dillman
5.0 out of 5 starsVerified Purchase
Love it
Reviewed in the United States on September 13, 2021
Style: 3000W Monoblock
Sounds excellent
Sounds excellent
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Tony
1.0 out of 5 starsVerified Purchase
Definitely wouldn''t suggest this to anyone
Reviewed in the United States on April 5, 2021
Style: 3000W Monoblock
I''m very unsatisfied with this amp we hooked it up to a dyno and it barely speaks 1000watts at 1ohm stable
I''m very unsatisfied with this amp we hooked it up to a dyno and it barely speaks 1000watts at 1ohm stable
4 people found this helpful
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