SOLD - FOR SALE: Valve Amplification Company VAC Phi Beta 110i Integrated Amplifier
Item #649253828Info: Valve Amplification Company VAC Phi Beta 110i Integrated Amplifier
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Feb 07, 16 4:55am (PST)
Edited: Apr 22, 16 10:31am
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From the Manual:
"The Phi Beta is the world's finest integrated amplifier and an absolutely unique component. Its unusual topology, premium parts and flexibility make it a pleasure to hear and operate.
Essentially, the Beta is the combination of elements of the Phi 2.0 Preamplifier with the Phi 110/110 stereo amplifier into a single, integrated, optimized system.
The phono stage uses triode tubes operating without loop feedback. Gain is moderately high, with very low noise floor. Low output MC cartridges are accommodated by means of high quality matching transformers, which contribute voltage gain w/out noise, resulting in detail that emerges from a remarkable dark and neutral background.
Remote volume control is implemented via motorized mechanical device. This provides two major advantages. First, the control is completely intuitive to use. Second, we avoid the sound degradation attendant w/ VCAs, transistor switches, and switched resistor arrays.
The power amplifier section uses four KT88 tubes in Class AB1. Uniquely, each is provided with a separate DC heater supply to ensure that no undesirable couplings occur; only the intended ideal signal path exists. The input circuitry is derivative of the unique Williamson circuit, which provides pure, direct coupled, inherently balanced input amplification and phase splitting. Type 6SN7/5692 octal twin triodes do the honors.
Two superb VAC output transformers allow high power to be delivered with sonic purity, provide superb voltage/current translation, and will drive impedances from eight ohms to as low as one ohm.
The main chassis is machined from this aluminum. The separate power supply allows emf fields, switching transients, and mechanical vibration to be isolated from the audio circuits. The high voltage supply dual choke pi filtering for extremely low noise.
The Phi Beta is designed not to the latest fad but to substance, for the highest possible sound quality."
Please note the following:
1. Please know that I am not a dealer , just an enthusiast like you . If you think you might need a dealer-level of service, please contact one.
2. No demos please.
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