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Crunch GP690v2 active subwoofer

active subwoofer for the spare wheel well, bass-reflex enclosure, 6 × 9", 150 W RMS, remote control
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Active subwoofer Crunch GP690v2

The Crunch GP690 is a compact active subwoofer designed for installation in the spare wheel well. Its low-profile design and enclosure shaped to fit the spare well allow you to add a stronger bass presence to your audio system without significantly reducing trunk space. The system uses a special 6 × 9” subwoofer and an integrated amplifier that provides sufficient power to supplement factory audio with a fuller bass foundation. The built-in amplifier offers both RCA and high-level inputs, making it easy to connect to aftermarket head units as well as factory systems without line outputs. The high-level inputs also support automatic turn-on, which greatly simplifies installation in modern vehicles. System controls include a low-pass filter, bass boost, a phase switch and a fixed subsonic filter. The package also includes a remote bass level control, allowing you to adjust the subwoofer volume directly from the driver’s seat. The construction is complemented by detachable connectors for easier installation and servicing.

Main features

Active subwoofer for installation in the spare wheel well.
6 × 9” subwoofer format.
Integrated 150 W RMS amplifier.
Adjustable low-pass filter 50 – 150 Hz.
Bass boost 0 – 12 dB.
Phase switch 0 / 180°.
Subsonic filter 25 Hz (fixed).
RCA inputs and high-level inputs.
Automatic turn-on function.
Remote bass level control.
Detachable connectors for easier installation.

About the brand

Crunch has been active in the car audio market for more than three decades. The brand was founded in the 1980s in the United States and gradually established itself among manufacturers of affordable audio solutions for everyday and less demanding installations. Later, Crunch became part of the American Maxxsonics USA group, which also includes other well-known car audio brands such as Hifonics, MB Quart and Autotek. Within this group, Crunch has long been positioned as a cost-effective alternative focused on simple and functional solutions for boosting and expanding factory audio systems. Crunch’s range includes a wide portfolio of amplifiers, speakers, subwoofers and accessories with a favorable price-to-quality ratio.

Catalog number	GP690V2
Brand	Crunch
Links	Official web presentation
The diameter of the subwoofer usedThe diameter of the subwoofer that is installed in the active box.	6 x 9"
RMS power of the amplifier	150 W
Energy class of the amplifierAmplifiers are divided into two basic classes: analog and digital . Analog amplifiers (A/B) have higher consumption requirements, but usually have a more natural sound. Digital amplifiers (D) have significantly lower consumption and higher efficiency, but the sound may not be as faithful as with classic analog amplifiers.	AB
Low-pass filter (LPF)	50 – 150 Hz
Bass boost functionBass boost or bass enhancement. With this function, the bass itself can be emphasized, at a high level of bass boost, the speakers and the subwoofer can distort a lot and the sound will be worse than better. We therefore recommend using the "bass boost" function wisely.	0 – 12 dB
Phase rotation optionPhase shift is a linear electronic oscillator that produces a sinusoidal output. It consists of an inverting part of the amplifier such as a transistor. The feedback network "shifts" the phase at the output of the amplifier by 180 degrees to the oscillation frequency and gives positive feedback. The Phase shift filter produces a phase shift that increases with increasing frequency. This is usually used when the subwoofer sub-assembly is out with the magnet, or when two amplifiers are connected externally. Phase Shift is also used with active speaker wiring, where the time shift of the speakers is set. The point is that the subwoofer does not play the bass late, and for this reason better amplifiers offer this phase reversal option.	0 / 180°
High level inputThe high-level input on the active subwoofer enables connection directly to the speakers in the car without purchasing an external high/low converter. Use in the case of mounting an active subwoofer on the original car radio.	Yes
Automatic on and offThis function will facilitate your installation and solve the problem of finding a remote signal, which is sometimes a problem with original car radios. The active subwoofer with the Auto sense function can recognize that the equipment in the car is active and turn itself on. A useful and practical feature.	Yes
Remote control included in the packageSome models of active subwoofers also have wired remote controls in the package, which on the one hand connect to the active box, and on the other hand you have a potentiometer that you can place anywhere in the cabin. A common place to place the remote control is under the steering wheel. The advantage is the regulation of power, and therefore volume, depending on driving conditions and the mood of the crew in the car.	Yes
Loudspeaker type	Bass reflex
What is the baffle made of?Active subwoofers can be made of MDF board, hardened plastic, sheet metal, aluminum or a combination of different materials.	MDF
Active subwoofer dimensions	500 x 150 mm
Mass	10 Kg