T+A A 1230

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Descrizione

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.

Connection elements
 
INPUT
 Asymmetrical amplifier input with an input sensitivity of 1 Veff.
 
SPEAKER A + B
 Two pairs of loudspeakers can be connected (SPEAKER A and SPEAKER B). The impedance of each speaker must not fall below 4 Ohm (DIN rating).
 
CRTL
 If the power amplifier is operated with an (optional) remote-controlled pre-amplifier (e.g. P 1220 R), then the CTRL IN socket should be connected to the pre-amplifier’s OUT CTRL socket via the RZ 001 remote control lead.
 
RLink
 Interface for future system expansions
 

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Scheda Tecnica

Stereo operation

Nominal output 8 Ohms
100 Watt

per channel, both 4 Ohms
150 Watt

Peak output 8 Ohms
150 Watt

4 Ohms
290 Watt

Power bandwidth
1 Hz – 300 kHz

Frequency response + 0 – 3 dB
0,5 Hz – 350 kHz

Slew rate, stereo
60 V/us

Damping factor
> 500

Signal: noise ratio (A-weighted)
> 110 dB

Total harmonic distortion
< 0,001 %

Inputs
Cinch

Reservoir capacity
90000 uF

Mains supply, 110 V or 220 / 240 V, 50 Hz
300 VA

Dimensions
7,5 x 44 x 3 cm

Weight
9 kg

Colours
Black (9005), Silver aluminium, Chrome (Non-standard version)

Remote control
Via R system