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后级The Exposure 4 Power Amplifiers
The Exposure 4 is the top of the range series of power amplifiers and comes in two forms, the Single 4 and the Dual 4 Regulated, both of which offer state of the art performance.
The Single 4 Power Amplifier
This power amplifier is available either with or without an internal regulated +/-24v pre-amplifier supply and as such represents a very flexible unit. As with all Exposure power amplifiers it uses the same circuit technology, but with an improved power supply section. In this case it is based on a custom made mains transformer of 325VA which is split into two windings one of 245VA used for the power amplifier section with the remaining 80VA being used for the optional pre-amplifier supply. The transformer, whilst being of the same overall VA rating produces more current (A) than the one used in the 8. Additionally a higher voltage rail is available on the board due to the larger custom designed power supply capacitors. Each channel is also individually rectified in order to maintain a high channel separation. It has a nominal output of 70 Watts into 8 Ohms and a transient capability of 250VA.
70w
250VA
100k Ohms
460mm
132mm
310mm
9.0kg
