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for sale is lightly used Audio Research DS450M Monaural Power Amplifier, was used for less than 30 hr on this, not much,
Asking Price 6999/pair
it will comes with everything, original box, manual
here's the details:
The DS450M mono amplifier adds a new level of performance and flexibility to our Definition Series of amplifiers. Providing abundant power, dynamics and control in a compact chassis, the DS450M rounds out the DS amplifier lineup.
There are several reasons to choose the DS450M over its stereo counterpart. The most important is performance-based: a monaural amp simply produces a bigger, more spacious soundstage. Also, we were able to fit a much larger power supply in the chassis. Then there is the issue of size: the DS450M is smaller and easier to situate than the hefty DS450 stereo amplifier. In addition to its reduced height, the DS450M mono is 4.15 inches (10.5 cm) shallower, allowing it to fit in a much tighter cabinet space. And, lastly, the DS450M is also perfect for multi-channel home theater systems when you only need one more powerful and dynamic amplifier channel. Rated power is 450 watts into 8 ohms.
The DS450M has the same chassis size as the DSi200 and DS225, and continues the same design philosophy of other Definition Series amplifiers. Our proprietary “hybrid Class D” all-discrete analog switching-mosfet output technology is combined with an enormous linear analog power supply, yielding tremendous speed and power delivery in a compact, cool-running chassis. This remains a distinctive Audio Research design from the ground up, forsaking the use of prepackaged “OEM” solutions common to other switching amplifiers. Each DS450M idles at only 55 watts. One major enhancement that allows a pair of DS450M’s to offer even higher performance than a DS450: the energy storage of a pair of DS450M monoblocks is 1,368 joules, an increase of 62% over the DS450. The immense power supply will jump-start the most inefficient speakers when the music demands it.
The DS450M is a fully balanced design with both XLR balanced inputs and RCA single-ended inputs. The rear panel features a dual Cardas patented speaker binding post and two 12V triggers. A 12-gauge detachable power cord with a 20A IEC connector is included. In addition to the standard all-silver version, the DS450M is also available with a black front panel, black handles, and black top cover.
The DS450M builds on the foundation of its siblings, with great resolving power, pinpoint imaging, and a musicality that is immediately involving. The enormous power supply provides an authority and sense of dynamics that are breathtaking with whatever music you choose. Whether it is used in the most refined music system or the most over-the-top video system, the DS450M will provide a level of performance and value that is startling.
Like all Audio Research products, the DS450M is made by hand in our Plymouth, Minnesota facility. Connections are hand-soldered, not press-fit nor wave-soldered. All metalwork, boards, transformers and major parts are American-made and sourced locally. We take a great deal of pride in our workmanship, and so will you.