Pioneer GM-A4704 520W 4 Channel Bridgeable Amplifier

To create truly remarkable sound, even the greatest of head units can benefit from decent amplification. Pioneers well-proven GM-A4704 unit fits the bill for many such applications, offering 4 channels of impressive power – at a price that most enthusiasts can afford.A combination of great design and impressive power, the GM-A4704 amplifier gives you total installation freedom with no distortion. With a one-body heat sink and gain adjustment of up to 6.5V, you can turn your in-car audio experience into the sound staging environment that youre looking for.Its a versatile unit too - this 4-channel amp allows you to drive multiple speakers and subwoofers, its also bridgeable to power a single sub. Depending on your needs, it can produce 4 x 40W at 4 , 2 x 120W when 4 bridged or 4 x 60 W at 2 . With a frequency response of 10Hz ~ 70kHz (+0dB , -3dB) Hz and miniscule distortion of < 0.05 %, the GM-A4704 offers crystal clear clarity, particularly when combined with any of Pioneers own head units or speaker systems.All of Pioneer's GM-series amplifiers feature adjustable gain controls. This means that no matter what kind of radio is connected to this amplifier, the appropriate gain control adjustment can be made to ensure loud, clear, distortion-free music. And even if the gain control level is set improperly, Pioneer's Gain Control Caution feature will automatically reduce the amplifier's output until the head unit volume is decreased to acceptable levels. This added layer of protection helps to prevent damage from occurring to the amplifier and the speakers connected to it due to improper gain control adjustments.Variable LPF (low-pass filter) and HPF (high-pass filter) allow for adjustable frequency between 40 Hz to 500 Hz and greater car audio system flexibility according to subwoofer characteristics and personal listening preferences. The GM-A4704 has a variable LPF/HPF on Ch. B and fixed LPF/HPF on Ch. A. This amp is perfect for generating, crisp, clean high, mid a