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Audio Research DS450M Mono Amplifier

code: AUDIORESDS450M
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This item cannot be ordered online. If you are interested please click on the Ask a Question button below.

POWER OUTPUT: 450W into 8 ohms (650W into 4 ohms),

1% THD. POWER BANDWIDTH: (-3dB points) 5Hz to 45kHz into 8 ohms.

FREQUENCY RESPONSE: (-3dB points at 1W) 5Hz to 45kHz into 8 ohms.

INPUT SENSITIVITY: 2.9V RMS for rated output (26dB Gain) single-ended or balanced.

INPUT IMPEDANCE: 150K ohms single-ended, 300K ohms balanced differential.

OUPUT POLARITY: Non-inverting from single-ended input.

Balanced pin 2+ (IEC-268). OUTPUT REGULATION: 0.02dB 8 ohms loaded to open circuit (Damping factor 440).

OUTPUT CURRENT: ~35 amps peak at protective shutdown.

SLEW RATE: 5 volts/microsecond (20% maximum duty cycle). 

This item cannot be ordered online. If you are interested please click on the Ask a Question button below

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 stage by virtue of the channels being totally isolated. 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 perfect for multi-channel home theater systems when you need a powerful and dynamic amplifier to drive the center channel speaker. 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 DS450MĘĚĚŸs to offer even higher performance than a DS450: the energy storage of a pair of DS450M mono-blocks are 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.

We endeavour to despatch same day (for orders placed up to 2pm) on available stock items to the vast majority of UK mainland addresses. Please remember to check with us first for a physical stock check if next day delivery is important to you.

UK ORDERS:  We despatch the bulk of our UK mainland items on a 24 hour service – Free of Charge.  Free delivery also applies to the Isle of Man, Isle of Wight, the Scilly Isles, the Scottish highlands and Islands, the Channel Islands and Northern Ireland but may take a day or so longer. Smaller items are delivered using Royal Mail recorded delivery or special delivery. Larger items are delivered using a courier service such as Interlink Express, DPD, UPS or DHL. 

INTERNATIONAL ORDERS: We offer competitive rates which can be confirmed by email. Please just ask – we will need a full delivery address and telephone number. Smaller items are delivered using Royal Mail Small Packets Airmail with International Tracked and/or Signed depending on value of item and availability of the service. Larger International shipments are sent by insured and tracked services using DPD, DHL or UPS. If there are any delays due to specific customs regulations, etc, you will be contacted by Hifisound or by the courier with a request for any further information required. Customs duties do not apply for shipments into any EU country (for a full list please refer to the EU Country List). Customs duties can apply for countries outside of the EU. Customers in these countries are responsible for all taxes and duties incurred when the items enter their country.

COLLECT IN STORE OR HOME INSTALL:At the request of the manufacturer some items cannot be supplied by mail order but you can click and buy them and then elect to collect them from our store or arrange a home install (if applicable). Applicable items clearly state that they are Collect in store or home install. Once ordered you will receive a message prompting you to contact us by phone or email to arrange for us to deliver and install or to reserve and collect from our store at your convenience.

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