QKits Electronic Kits: K3503, 2 x 100 Watt Car Booster Amplifier kit

Features:

* Switchable line/CD and speaker level inputs
* Wide frequency response (10Hz to 100kHz)
* Twin switching power supply
* 12V or 24V operation
* Remote power off/on control
* Push-pull BTL outputs

This affordable high power amplifier for cars employs a modern switching PWM power supply to boost the nominal 12V (or 24V for trucks) supply voltage to approximately 33V, enabling the amplifier to deliver higher power levels. Such switched mode power supplies (SMPS) using DC to DC converters help to deliver rock solid bass with a performance that is immune to supply line noise and battery fluctuation. Using FET switching transistors, this unit maintains tightly controlled regulation which results in stable, ripple-free supply voltages. Bipolar transistors are used in the audio output stages as they offer increased output efficiency. The speakers are directly coupled to the outputs to give a clean, powerful bass response. The amplifier will accept low level, ie. speaker outputs from a radio cassette, and line level inputs. This Kit can be used to prevent audible thumps at switch-on.

Specifications:

Output power: 2 x 100W peak (2 x 50W rms) into 4ohms
2 x 70W peak (2 x 35W rms) into 8 ohms
Frequency response: 15Hz to 20kHz (-3dB)
LOW input 10Hz to 100kHz (-3dB)
L1NE/CD input
THD at lkHz: 0·15%
S/N ratio: >100dB (A-weighted)
Channel separation: 55dB
Input sensitivity
LINE/CD: 0·5V rms minimum
LOW: 1V rms minimum
Input impedance
LINE/CD: 47kW
LOW: 135W
Power supply: 10V to 16V (14.3V nominal) at 20A
20V to 30V (28V nominal) at 10A
Quiescent current: 650mA
Dimensions: 250 x 190 x 50mm

	~ Celebrating 12 Years of QualityKits in 2008 ~		25-Jul-2008