Specifications, Equalizer Background | Lanzar Car Audio 440PSU

Specifications

Frequency Bands	SUB 50Hz, LOW 210Hz, MID 1KHz, HIGH 20KHz
Boost/Cut	+/- 18dB
Signal-To-Noise Ratio	110dB Ref 1V Input
Frequency Response	10Hz-15KHz, +/-1dB
Maximum Output Voltage	7V rms
Total Harmonic Distortion	0.05%
Input Sensitivity	150mV
Headroom	20dB
Input Impedance	10K ohms
Stereo Separation	82dB/1KHz
Operating Voltage	11-15V Negative Ground

EQUALIZER BACKGROUND

There are basically three types of equalizers: graphic, parametric and a hybrid of these two,often referred to as paragraphic. Additionally, there are passive equalizers, which have no gain, active gain preamps, which have a gain stage usually with a volume control, and booster equalizers which we won,t consider here since they are inferior passive equalizers with inexpensive IC amplifiers built-in.

As in state-of-the-art home audio systems the optimum system requires a dedicated preamp with enormous gain to drive the various power amplifiers. Since home audio amplifiers do not have adjustable sensitivity, the require a high output preamplifier to drive them to maximum levels.

This unit is the first production preamplifier to incorporate a specific bandwidth parametric equalizer with shelving control. With 18dB boost or cut on its four bands, it can compensate for acoustic anomalies unique to the automotive environment. The Vibe 440PSU easily becomes the Control Center of any high-end mobile entertainment system.