Description
For sale Spectral DMA-150 S II Power Amplifier RCA/XLR Audiophile High Quality - 220 VAC As the manufacturer describes this product -The DMA-150 High Resolution Amplifier shares with other Spectral components the creative uncompromising use of edge-of-the-art technology, dedicated precision manufacture, and Spectrals experience with live sound at recording sessions. From extensive listening and design experimentation, Spectral has consistently pioneered component systems having fast settling, high-speed circuit architecture. These have invariably outperformed more traditional often cumbersome high-end design methods to achieve superlative detail, staging and listener involvement. Indeed, test methodology simulating music waveforms and hearing acuity confirm that quickness of response and rapid signal extinction when reproducing complex dynamics are mandatory for accurate music reproduction. Only then can one preserve instantaneous waveform accuracy to prevent cover-up of delicate musical signals by previous events. Construction and performance of the Spectral DMA-150 High Resolution Amplifier for this demanding criterion and resulting sonic resolution are unmatched among contemporary high-end amplifier designs.. Like the innovative DMA-180 Reference Amplifier, the DMA-150 utilizes Spectrals unique Focused Power output section design with powerful ultra-fast Mega FET devices. Each device, having vacuum tube like operating character, is energized from its own dedicated high energy storage capacitor, rectifier, and individually powered from an isolated ultra-low coupled transformer winding. Individual Teflon bias trimmers are used to calibrate each output device separately. Groups of these individual output device/power supply circuits utilize field folding construction and electronic shielding to further impede propagation of stray interference. The resulting Focused Array of individual isolated output sections performs as one with virtually no cross-coupling and energy storage artifacts reflecting between output devices. During extreme program dynamics, this arrangement can launch an instantaneous high current drive of over 60 amps per channel to the most sophisticated loudspeakers with assured precision waveform tracing. Gone are performance damaging magnetic and electrical field propagation problems of conventional multiple device heavy construction. Without stray radiation, critical small signal paths within the DMA-150 and other sound system components can perform with lowest distortion and settle to signal extinction in micro-seconds. Hence, the DMA-150 works with power and speed yet behaves inert to other electronic parts of the system. Reproduction is highly articulate and resolving yet has all the powerful unlimited character of the best very high power amplifier designs, giving little suggestion of its actual 150-watt-per-channel output specification.Cosmetic Condition: The Amplifier has minor signs of wear and tear as it has been in use, however these signs of wear do not affect its performance or performance. All signs of wear are shown in the photo and you can see them. Technical condition: The amplifier is fully operational and has been tested before sale. Lot complete set: Amplifier, factory cardboard packing. Specifications: Power Output:(continuous)@ 8 ohms - 150 Watts RMS @ 4 ohms - 300 Watts RMS @ 2 ohms - 570 Watts RMSDistortion: Static: Less than 0.015% from DC to 100 KHz, typically 0.009% @ 200 WRMS/8 ohms Dynamic: 8 Tone Cluster Test 20 KHz @ 500 Hz separation; 0.01% 8 ohms; 0.015% 4 ohmsInput: Impedence: 100K ohms in parallel with 100 pf Sensitivity: 1.5 volts/nominal output The rest of the technical specifications can be found at the link on the manufacturers website: http://www.spectralaudio.com/dma-150spec.htm Payments: PayPal or Payoneer ONLY. International Buyers - Please Note:Import duties, taxes and charges are not included in the item price or shipping charges.These charges are the buyer’s responsibility.Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying. These charges are normally collected by the delivering freight (shipping) company or when you pick the item up do not confuse them for additional shipping charges. Shipping: We usually ship within 10 business days of receiving cleared payment. We do not ship to Russia and Belarus. Please note:Any goods damaged in transit should be reported within 24 hours of receiving it and would request to take clear pictures of the damages. Also, in this situation please do not throw the original packing away as the courier companies request them for investigation. Private sale without the possibility of a return: You are purchasing a used product (not new), which will be sent to you in a safe package that excludes damage as a result of transportation, therefore any warranty obligations, including the return of the product, its replacement, repair in the future - will not be accepted.The goods will be carefully checked before being sent to the buyer with a mandatory video recording of his work.Before you buy a product, you must understand that there is no return, you must go through customs procedures and pay customs fees (taxes) in your country at the time of receiving the package. If you are not sure or dont know how much the customs costs will be, it is better not to purchase this item. This is a private sale and cannot be returned. You buy what you see! The photos correspond to the product that is provided for purchase in this auction. Please carefully study the photo and description of the conditions of purchase.The item will be packaged very carefully and insured for its full value. After sending the parcel, you will be provided with a tracking number for the parcel.Will ship Worldwide at buyers cost and risk - ask for a shipping cost please! Best regards
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