The power amplifier is the final component in the signal chain before the loudspeakers. It is the workhorse of a hi-fi system. It takes the low-level signal from the pre-amplifier and converts it to a powerful signal to drive the loudspeakers. It has a low-level input to receive the signal from the preamplifier, and terminals for connecting loudspeaker cables.
Because of the power amplifier's unique function, it differs from other components in size, weight and use. High-quality power amplifiers are usually large and heavy. Moreover, the power amplifier is the component you don't need to touch and adjust. Consequently, power amplifiers are often placed on the floor near the loudspeakers rather than in an equipment rack.
STEREO POWER AMPLIFIER:
A power amplifier with two audio channels (left and right) in one chassis.
MONOBLOCK POWER AMPLIFIER:
A power amplifier with only one audio channel per chassis. Two monoblocks are required for stereo reproduction.
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Naim NAP 200 DR
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During the years of research that went into the NAP 500 amplifier, many technical developments were made that could be successfully applied to the existing products. Many of these developments, along with the elegant new styling have been incorporated, resulting in the 'Classic' line-up.
Like the flagship NAP 500, the NAP 200 uses a new circuit design with improved earthing arrangements built on a very high quality, anti-resonance main audio circuit board.
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£ 2,399.00
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Cary Audio CAD-211 Anniversary Edition
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110 Watts per channel in Class A/B, 70 watts per channel in Class A, all Triode tube Mono Blocks with 6CA7 current source, 6SL7 input tube, 300B driver tubes and 845 output tubes. Speaker terminals for 4, 8 or 16 ohm speakers.
read a recent product review here
Weight:
90 lbs.
Dimensions:
10" H x 12.25" W x 24" D
Circuit Type:
Class A, Class A/B, Pure Balanced Design
Power Output: 110 Watts, Class A/B
70 watts,
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Cary Cinema 2 Power Amplifier
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2 x 200 watts/channel @ 8 ohms,
2 x 350 watts/channel @ 4 ohms,
Toroidal power transformer, remote turn-on trigger, RCA or Balanced Inputs Silver front panel standard, black optional
SPECIFICATIONS
Circuit Design: Solid State, Class A/B
Weight: 40 lbs.
Dimensions: 5" H x 17.7" W x 15.5" D
Output Operation: Class A/B
Power Output: 2 x 200 watts/channel @ 8 ohms. 2 x 350 watts/channel @ 4 ohms
Frequency Response: 10Hz to 50kHz +/- 0.1 dB
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Sugden Masterclass SPA-4 (SPA4) Stereo Power Amplifier
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The Sugden Masterclass series of Audio equipment embodies years of experience in designing and building audio reproduction equipment. The series embraces the highest level of today's technological possibilities to obtain the ultimate level of musical performance. Technological possibilities, which include circuit topography, discreet components, and material utilisation to extend the art of music reproduction beyond the scientific to an actual soul form. The special character of the series is the result of extended periods of subjective listening and tuning of the amplifying elements to achieve the ultimate audible results.
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Cary Audio CAD-300SE Signature
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15 Watts per channel, Single Ended Triode, Pure Class A, Mono Blocks with 300B output tubes. Standard with 4 & 8 ohm speaker switch. Jaguar Anthracite black chassis with clear coat finish, black anodized aluminum front panel.
TECHNICAL SPECIFICATIONS
- Weight: 32 lbs.
- Dimensions: 7" H x 5.5" W x 19" D
- Circuit Type: Single-Ended Class A
- Power Output: 15 Watts
- Input Sensitivity: 1.5 Volts for full output
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Cary Audio CAD-805 Anniversary Edition
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50 Watts per channel, Pure Class A Single Ended Triode Mono Blocks with dual 6SN7 input stage, 300B driver stage tube, includes both 845 and 211 output tubes. User selector switch for output tube. Jaguar Anthracite black chassis and top plate with clear coat finish, anodized aluminum front panel.
Read this fantastic review by Positive-Feedback Magazine click here.
SPECIFICATIONS
- Weight: 80 lbs.
- Dimensions:
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EAR 509 Power Mono Blocks
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25 years Anniversary 1978 - 2003
EAR Silver Jubilee Limited Edition, EAR509 100W Mono Valve Power Amp returns by popular demand
Built to professional standards. Advanced Industrial grade high capacity valves not used in any domestic amplifier. EAR amplifiers proven in studio use. Accurate simple self-biasing for user replacement of valves when appropriate. In professional applications “XLR” input connectors and balanced semi-floating inputs are supplied at a nominal additional cost. Stability - No feedback is used on the transformer secondary - The amplifiers are entirely stable into any load. Matched mono amplifiers are supplied in pairs for stereo.
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EAR 861 Power Amplifier
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The new EAR 861 power amplifier
Tim de Paravicini wants to prove the ETM circuit is capable of even greater things! The starting point of the design was the ‘859, and with some justification, the ‘861 could be regarded as a push - pull version on the ‘859, however, this is more than a slight understatement: Each output transformer has a massive 5 kilogram weight, with no feedback applied over it. The circuit is balanced push - pull from input to output, allowing balanced (professional) style inputs as well as conventional RCA phono jack socket. Similar to the ‘859, the circuit is direct coupled. Tube choice is not critical; perfect operation does not rely on matched tubes, or user adjustable bias.
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EAR 534 Power Amplifier
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The EAR534 has been designed to meet a wide variety of needs, from the most demanding of audiophiles to the professional seeking high quality monitoring equipment in the studio field. The circuit design uses push-pull output and driver stages, a hight quality in-house designed output transformer and low negative feedback. It is capable of operationg in bridged-mono mode, to make a true mono block amplifier. Tube life is long (and replacement costs are modest) and the circuit operates in pre Class A.
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( Displaying 9 of 209 Products )
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