power amplifier - PULSAR A 1230 R
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power amplifier - PULSAR A 1230 R |
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Regarded from a purely external point of view this brand-new high-performance power amplifier gives a slim and delicate impression. Don’t be deceived! Inside the case is a true Goliath: our development engineers have squeezed into it the same outstanding output stage philosophy and circuit technology as the famed A 1530. At the same time the new unit retains all its predecessor’s wonderful broad-band character and speed. You’ll be bowled over by its dynamic reserves, too: the A 1230 can supply more than 500 watts of power for brief periods. The A 1230 looks small, but sounds gigantic. The new ICA technology, recently developed by T+A, de-couples the amplifier’s input stage from the current pre-amplifier stage. The new push-pull class A mirror current stage is designed to cope with high-level signal processing, and features transistors with a transient frequency of more than 300 MHz. The result is virtually bottomless dynamic reserves, a vast bandwidth and tremendous speed. Naturally the A 1230 R can be used as a normal stereo power amplifier, but it can also be employed in other modes, e.g. for bi-wiring or bi-amping in conjunction with other T+A power amplifiers. To protect the amplifier and the speakers connected to it an electronic circuit monitors the signals in the amplifier. This protective circuit is not located in the signal path, so it has absolutely no influence of any kind on the sound image. The circuit monitors the input signal before the output stage, and compares it with the output signal. If the slightest deviation occurs (clipping, distortion etc.) the circuit switches off the output relays. The protective circuit also trips if the outputs are shorted, or if the unit overheats. |
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