Creek A53 Power Amplifier

In response to the demand for bi-amping from many existing customers of the Classic 5350SE and original 5350SE Creek has developed a simple solution. We have simply taken a Classic 5350SE and removed everything that was not associated with the power amp section. We removed the pre amp, remote control volume and input selection circuitry and micro controller. This left us with the Classic Power Amp.

This is not a retrograde step because, for those of you who read the specs would realise, the 5350SE-integrated amplifier is already a power amp with passive pre-amp. In other words, if you were to eliminate the pre-amp section and drive it from the power amp with a separate pre-amp through the input sockets on the back, the performance would be the same as for the integrated amp. The Classic Power Amplifier is constructed in a similar case too the integrated amp, but obviously, without the sockets, switches and knobs and other unnecessary function controls that are used in the integrated amp.

To accommodate Bi-wiring, the Classic Power Amp is fitted with 2 pairs of high current speaker binding posts. Speaker A/B selection is not possible, but the amp can drive 2 sets of 8 Ohms speakers in parallel if required, or separately drive different drivers in a single multi-way speaker through separate speaker cables.

Short circuit, DC offset and anti-thump protection circuitry makes the Classic Power Amp a sophisticated, user-friendly power amplifier, with a technical performance close to the best. For the technically minded, the Classic Power Amp uses a high current, N channel only, MOS-FET power output stage, driven by a P channel MOS-FET phase splitter and double differential voltage amplifier with symmetrical Class ‘A’ driver, to achieve ultra-low distortion and high speed with minimal negative feedback. The input sensitivity is the same as the Classic 5350SE Integrated amp, so paralleling the integrated amp and power amp will achieve the same gain, which can be controlled by the common volume control in the Classic 5350SE. If used as a stand-alone power amp, the power amp can be used with a passive or active pre-amp as required. It will also work very well with the Creek OBH-22 remote controlled Passive Pre-amp.

The Classic Power Amp uses a 250VA toroidal transformer, together with multiple power supply capacitors totalling 31,000uF, 105 degree C, low impedance, to achieve the quality of computer grade capacitors but with very low inductance, for the ultimate in sonic performance.

Like other Creek amplifiers, the Classic 5350SE is DC servo controlled, to enable direct coupling from input to output and accurate low frequency roll-off, thereby eliminating sonically degrading capacitors from its signal path.

The Classic 5350SE remains a landmark in Hi-Fi design, incorporating state of the art circuitry with elegant styling to achieve a versatile and high fidelity amplifier par excellence.

Creek A53 Power Amplifier Specifications: