BAT VK-500
Beschrijving / Description
The VK-500 is a fully balanced design and a dual mono configured amp (which is why you will only find a pair of XLR inputs and two IEC connectors on the back). There are two huge transformers in the center that powers each amp where it delivers 250W in 8 ohms or 450W in 4 ohms.
The VK-500 has only two gain stages, an input stage and the output stage. The input stage serves as the driver for the output stage. As a result, the input stage has to be run at very high bias, meaning high current, and therefore, high heat. Indeed, the amplifier gets very warm during use, whether at idle or at high output. So, before you even get to the output, there are considerable demands on the power supply, and that is one reason why there is such a big supply on the VK-500, even with the basic model (the one without the BAT-PAK).
Specificaties / Specifications
Balanced Audio Technology VK-500 Two channel Power Amplifier
250 Watts RMS Per Channel into 8 Ohms, 450 Watts Per Channel into 4 Ohms
THD < 1 % at Full Output
Input Impedance: 100 kOhms
Slew Rate: > 300 V/u sec
Output Impedance: 0.2 Ohms
Size: 9 1/2"H x 19"W x 23"D
Weight: 105 Pounds