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Jensen DUBa1450

Mono subwoofer amplifier — 400 watts RMS x 1 at 2 ohms

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  • Jensen DUBa1450

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  • Jensen DUBa1450

  • Jensen DUBa1450

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Our take on the Jensen DUBa1450

by Bob Bihlmayer
Jensen

My system has plenty of power. Who needs an amp?

You might think you don't need an amp because you have a 400-watt system in your car, or because your new stereo puts out 50 watts a channel. But those are peak wattage ratings, which may boil down to 15 or 20 watts per channel, using the more realistic RMS rating. An amp sends your speakers the power they need to deliver your music with clarity and impact, whether you're using factory speakers or high-performance components. And low-frequency reproduction requires lots of power, so an amp is an absolute must if you're adding a sub to your system.

Jensen + DUB

Since 1925, Jensen has been a pioneer in home and car electronics, developing landmark products such as the first high-efficiency loudspeaker and the first aftermarket car speaker.  Now Jensen has partnered with DUB® magazine, the leading publication in the urban automotive lifestyle market, to introduce DUB Edition speakers and amplifiers, featuring DUB-designed cosmetics and co-designed components.

Boom for your zoom

The DUB Series DUBa1450 mono subwoofer amplifier will send up to 400 watts RMS to your subs, while its variable low-pass and subsonic filters and bass boost let you zoom in on the sound you want.  This Class AB amp uses a MOSFET power supply and high-current output transistors to deliver strong, reliable power, and it features full short-circuit, DC offset, and thermal protection, so the music won't stop until you want it to. And why would you want it to? You've got DUB on the case.

See more info on this item

Highlights:

  • mono subwoofer amplifier
  • 260 watts RMS at 4 ohms (400 watts RMS at 2 ohms)
  • CEA-2006 compliant
  • Class AB amp technology
  • high current Toshiba output transistors
  • variable low-pass filter (40-300 Hz, 12 dB/octave)
  • variable subsonic filter (10-40 Hz, 12 dB/octave)
  • variable bass EQ: 0-12 dB at 45 Hz
  • fuse rating: 30A x 2
  • 8-gauge power and ground leads recommended—wiring and hardware not included with amplifier
  • dimensions: 17-1/2"W x 2-1/8"H x 8-1/8"D
  • frequency response: 10-240 Hz
  • weight: 8 lbs.
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Performance
RMS Power Output (Watts x Channels)
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260 x 1
Peak Power Output (Watts x Channels)
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900 x 1
Power at 2 Ohms (Watts x Channels)
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400 x 1
Bridged Power (Watts x Channels)
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N/A
Minimum Impedance Bridged
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N/A
Minimum Impedance Unbridged
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2
Best Frequency Response
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10-300 Hz
THD at Rated RMS Power
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1%
Signal to Noise Ratio
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100 dB
Input Voltage
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14.4v
Features
Amplifier Class
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AB
Low-Pass Crossover Frequency
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40-300 Hz
Low-Pass Slope (dB/octave)
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12 dB/oct
High-Pass Crossover Frequency
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N/A
High-Pass Slope (dB/octave)
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N/A
Bass Boost
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0-12 dB
Bass Boost Frequency
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45 Hz
Fan Cooled
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No
Fuse Rating
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60
Speaker Level Inputs
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No
Preamp Outputs
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1 pair
Width (inches)
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17-1/2
Height (inches)
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2-1/8
Depth (inches)
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8-1/8
Parts Warranty
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1 Year
Labor Warranty
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1 Year
Product Research
What's in the box?

Download owner's manual

  • Mono block Class AB amplifier with two 30A ATO fuses installed
  • 2 End caps (installed)
  • 4 Machine screws for end caps (M3 x 6mm)
  • Spare 30A ATO fuse
  • Remote Input Level Control module
  • 16.5' Remote Input Level Control cable (with RJ-25 plugs at both ends)
  • 4 Self-tapping screws (Length=15mm)
  • 4 Large flat washers
  • 4 Large split lock washers
  • 2 Self-tapping screws for remote module (Length=10mm)
  • 2 Small flat washers
  • 2 Small split lock washers
  • Installation & Operation Manual
  • Product Registration card
  • Performance Certification card

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 open the box, verify contents, 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.

Features
Controls
Connections

Features

Overview: The Jensen DUB Edition amplifiers offer performance and value for your vehicle's sound system. With a MOSFET power supply and high-current Toshiba bi-polar output transistors, the DUB amps provide lots of power and control to give your music impressive punch and clarity. The Class AB design reduces idle current and minimizes distortion.

Power Output: The DUBa1450 mono block amplifier delivers the following power output:

  • CEA Specifications: RMS power output @ 1% THD+N, 10-300Hz, 14.4 VDC:
    • 260 watts x 1 @ 4 ohms
    • 400 watts x 1 @ 2 ohms
  • RMS Power Output @ 2% THD+N, 1 kHz, 14.4 VDC:
    • 300 watts x 1 @ 4 ohms
    • 450 watts x 1 @ 2 ohms

Protection Circuitry: The amplifier features protection circuitry for thermal overload, DC-offset, and short circuits. The LED on the top of the amp glows yellow if a fault is detected.

Pass-thru RCAs: The DUBa1450 has a pair of RCA connectors that allow you to connect additional amplifiers without having to use a Y-adapter. The line output is unfiltered, providing the same signal as the RCA input.

End Caps: The DUB Edition amps include end caps to cover the wiring and controls for a clean installation. The end caps can be painted to match your vehicle, if desired. The end cap brackets can be removed if you wish to install the amp without the end caps.

Controls

Input Level: The DUBa1450's rotary gain control let you match the amp's input sensitivity to the output of the source unit. The input sensitivity range of the amplifier is continuously variable between 400mV and 5V. A small screwdriver (not included) is required to set the gain.

Remote Input Level Control: The amp includes a Remote Input Level Control module with a 5-meter (16.5') 6-pin modular cable. You can adjust the input level of the amplifier from the driver's seat or an alternate location. This allows you to tune the amount of bass you want for different types of music. The module can be mounted under or in the dash.

Low-pass Filter: The amp features a 12 dB/octave low-pass filter that is adjustable from 40 to 300 Hz.

Sub Sonic Filter: The Sub Sonic filter removes ultra-low frequencies that cannot be reproduced by most subwoofers. These frequencies do not become sound, but unnecessary oscillations which affect sound by causing distortion. These frequencies also waste amplifier power and can cause damage to speakers. The filter's crossover point is variable from 10 to 40 Hz with a slope of 12 dB/octave.

Bass Boost: The DUBa1450 has a 0 to 12dB bass boost, centered at 45Hz.

Connections

Set-screw Terminals: The Jensen DUBa1450 uses set-screw terminals for the +12V power, ground, turn-on (remote) lead, and speaker outputs. The set-screws can be tightened/loosened with a Phillips-head screwdriver (not provided).

Power/Ground: The +12V Power and Ground terminals will accept up to 4 AWG wire. You should use at least an 8-gauge power wire to the battery, with an in-line 60A fuse installed no more than 18" from the battery terminal. An 8 AWG ground wire (minimum) should be used, and attached to a metal area close to the amplifier.

Remote Turn-On: The Remote set-screw terminal will accept up to 8 AWG wire. Typically, an 18 AWG turn-on lead is included in an amplifier wiring kit.

Low-Level Input: The amplifier is equipped with a pair of RCA inputs for connecting a stereo RCA patch cable from the head unit to the amp. A stereo RCA line output is also provided for daisy-chaining another amplifier without requiring a Y-adapter.

Speaker Outputs: The amp features two positive and two negative set-screw terminals for connecting one or two speakers. For maximum power, it is recommended that you configure the speakers for a nominal 2-ohm load. The terminals will accept up to 8 AWG wire, however, it is recommended that you use a minimum of 12 AWG wire.

 
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