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 DUBa4100 4-channel amplifier delivers
the following power output:
- CEA Specifications: RMS power output @ 1% THD+N, 20-20kHz, 14.4 VDC:
- 70 watts x 4 @ 4 ohms
- 90 watts x 4 @ 2 ohms
- 170 watts x 2 bridged stereo @ 4 ohms
- RMS Power Output @ 2% THD+N, 1 kHz, 14.4 VDC:
- 75 watts x 4 @ 4 ohms
- 100 watts x 4 @ 2 ohms
- 200 watts x 2 bridged stereo @ 4 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 DUBa4100 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
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.
Input Level: The DUBa4100's rotary gain control let you match the
amp's input sensitivity to the output of the source unit. There are independent
input level controls for the front (Channels 1&2) and rear (Channels 3&4). 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.
Crossover: The amp features 12 dB/octave crossovers that are adjustable from 40 to 300 Hz.
There are independent crossovers for the front (Channels 1&2) and rear (Channels
3&4). A 3-way switch lets you configure the crossovers for high-pass or low-pass
operation, or switched to full-range to defeat the crossover.
Bass EQ: The DUBa4100 has a 0 to 12dB bass EQ,
centered at 45Hz. There are separate Bass EQ controls for the front (Channels
1&2) and rear (Channels 3&4). These are useful for varying the amount of bass if
you're running the amp in bridged stereo for driving subwoofers. Ported and
Bandpass enclosures should be limited to approximately +6dB to +9dB of boost,
while sealed enclosures should be able to accept the full +12dB of boost.
Mode Switch: The Mode switch is a 3-way slide switch that
lets you configure the amp for three different input modes: 2 channel (feeds
signal to all 4 channels from 2 inputs), 3 channel (feeds signal to all 4
channels with a stereo input for the front and a mono input for the rear), or 4
channel (feeds signal to the 4 channels with individual inputs for each).
Terminals: The Jensen DUBa4100 uses screw
terminals for the +12V power, ground, turn-on (remote) lead, and speaker
outputs. The screws can be tightened/loosened with a Phillips-head or flat-head
screwdriver (not provided).
Power/Ground: The +12V Power and Ground terminals will
accept spade connectors up to 7/16" (0.4375") wide. It is recommended that you use an
8 AWG power wire to the battery, with an in-line 40A 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 screw terminal will accept a
spade connector up to 5/16" (0.3125"). Typically, an 18 AWG turn-on lead is included in an amplifier
Low-Level Input: The amplifier is equipped with two pairs of
RCA inputs for connecting stereo RCA patch cables 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 four positive and four
negative screw terminals for connecting four speakers in stereo. To bridge the
amp to 2 channels, you should connect the Channel 1 & 3 left + and the Channel 2
& 4 right - terminals to the speakers. You can also connect the amp in 3-channel
mode by wiring the Front channels in stereo to two full-range speakers, and
bridging the Rear channels to a subwoofer. The terminals will accept a spade
connector up to 5/16" (0.3125") wide. It is recommended
that you use a minimum of 12 AWG wire.