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Mono subwoofer amplifier 2500 watts RMS x 1 at 2 ohms
Our take on the Kicker 11ZX2500.1 by Crutchfield's Buck Pomerantz
Caution: big bass ahead
This Kicker ZX2500.1 mono subwoofer amplifier will pump your bass up to competition level with up to 2500 watts RMS. This reliable war horse of a sub amp will remain cool even when pushed hard, due to its tough internal components and the efficient Class-D amp technology it uses to boost your bass.
Works with almost any stereo
Kicker employs their Fail-Safe Integration Technology (FIT™) to reject noise and stop any interference generated by your car's electronics, so you'll enjoy your music clean and pure. Speaker-level inputs make it simpler to hook this amp up to a factory radio.
You can tune for almost any enclosure and bass driver with the steeply-sloped subsonic and low-pass filters. A bass boost gives you even more kick, when you're in the mood. A wired remote level controller is included so you can crank up the level of fun from the front seat.
What's in the Box:
- Mono subwoofer amplifier
- ZXRC Wired remote control
- ZXRC cable with RJ-14 plugs on both ends
- Owner's manual (English/ Spanish/ German/ French)
- mono subwoofer amplifier
- 1250 watts RMS x 1 at 4 ohms (2,500 watts RMS x 1 at 2 ohms)
- CEA-2006 compliant
- variable low-pass filter (50-200 Hz, 24 dB/octave)
- fixed subsonic filter (25 Hz, 24 dB/octave)
- variable bass boost (0-18 dB at 40 Hz)
- Class D amp technology
- Fail-Safe Integration Technology eliminates noise from your vehicle's electrical system
- preamp and speaker-level inputs (speaker-level input requires an optional adapter)
- preamp outputs
- wired remote sub level control included
- 1/0-gauge power and ground leads and a 300-amp fuse recommended wiring and hardware not included with amplifier
- no onboard fuses when installing multiple amps in a system, an additional 300-amp in-line fuse between the distribution block and the amplifier is recommended
- 27-1/2"W x 2-1/8"H x 9-5/8"D
- warranty: 2 years (extends to 3 years when purchased with a Kicker 09PKD1 or PKD1 wiring kit)
- Our 60-day money-back guarantee
Features and Specs
|RMS Power Output (Watts x Channels)||
1250 x 1
|Peak Power Output (Watts x Channels)||N/A|
|Power at 2 Ohms (Watts x Channels)||2500 x 1|
|Bridged Power (Watts x Channels)||N/A|
|Minimum Impedance Bridged||N/A|
|Minimum Impedance Unbridged||2|
|Best Frequency Response||25-200 Hz|
|THD at Rated RMS Power||1%|
|Signal to Noise Ratio||65 dB|
|Low-Pass Crossover Frequency||50-200 Hz|
|Low-Pass Slope (dB/octave)||24 dB/octave|
|High-Pass Crossover Frequency||N/A|
|High-Pass Slope (dB/octave)||N/A|
|Bass Boost||0-18 dB|
|Bass Boost Frequency||40 Hz|
|Speaker Level Inputs||RCA|
|Preamp Outputs||1 pair|
|Parts Warranty||2 Years|
|Labor Warranty||2 Years|
Gain: The rotary gain control is continuously variable from 125 mV to 5 V when the Input Sensitivity switch is set to Low and 250 mV to 10 V when the Input Sensitivity switch is set to High.
Crossovers: The crossover is always engaged (cannot be bypassed). The crossover point is continuously variable from 50 to 200 Hz and the slope is 24dB per octave.
Auto Turn-on Switch: The amp offers three automatic turn-on modes; select from:
- +12V: connect a wire from the remote turn-on lead from your source unit to the REM terminal on the amplifier; this is the preferred turn-on method
- DC Offset: turns the amp on when a 6-volt DC offset is detected at the high-level speaker inputs when the source unit is turned on
- Audio: detects the incoming audio signal from your source unit and automatically turns the amp on; will not work if the input gain control is not set properly
Bass Boost: The bass boost circuit provides up to 18dB boost at 40Hz.
ZXRC Remote Bass Control: The bass output level can be controlled remotely using the included wired remote bass control.
Left Side of Amplifier:
- Speaker Outputs: one pair of set screw terminals
- +12V (power): set screw terminal
- REM (remote turn-on): set screw terminal
- GND (ground): set screw terminal
Note: The Amplifier is not equipped with an internal fuse. An external 300-amp fuse (not included) must be installed on the power wire. If the system has only this amp and a wiring kit is used that includes a fuse with a value other than 300-amps, the original should be replaced with a 300-amp fuse.
Right Side of Amplifier:
- RCA Input: one pair of stereo RCA input jacks; also used for speaker level input (item number 20609ZiSL needed, sold separately)
- RCA Output: one pair of stereo RCA output jacks
Amp Wiring Kit: Kicker recommends using a 1/0-gauge wiring kit with this amplifier.
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