Audio Research DS450M

Written by on 06/05/2012 in Research - No comments

We recently sold and installed the very 1st pair of these mono block amplifiers in South-Africa. Producing a whopping 450W RMS into eight ohms and being absolutely stable to below one ohm makes for the most effortless grunt we’ve experienced in a long time. It is as if the mighty 2012 B&W800Diamond loudspeakers with their known impedance difficulties suddenly transformed to a high sensitivity design with the most gentle of amplifier loads. We’ve never heard B&W800’s being commanded so effortlessly.

The DS450M amplifiers produce their incredible power from a unique proprietary combination of amplifier technologies developed in-house by Audio Research engineering staff. The output stage configuration is class-D, but of another proprietary design. It has entirely been made up of discreet components, meaning there’s none of the often sterile off-the-shelf chipsets anywhere in site. The output stage in turn is coupled to a conventional high current analogue power supply similar to the ones used in Audio Research Reference series vacuum-tube amplifiers. With a massive 220,000uF of reservoir capacitance in each mono block, this unique combination of technologies provide the making of one mighty interesting amplifier!

Listening confirm extreme capabilities and sonic performance. They are lightening quick, yet utterly refined and musically convincing all the same. Power seems endless. They are also claimed to be more than 90% efficient. No more toasty heat sinks melting anything in proximity! These amps can be shoved into a cabinet and forgotten about. They can even be left powered up permanently drawing a mere 55W at idle. The factory in fact recommends leaving the DS450M’s powered up permanently.

We will have another set on demonstration in Cape Town within a few weeks. Be sure to book an audition today and feel free to inquire about a price in ZAR.

About the Author

Audio Engineer, Critic & Retailer twenty-seven years in the making.

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