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As of September 16th, 2019 we will no longer be selling PS Audio as they are going factory Direct

  Call us to discuss this as well as all other PS products. Tremendous trade-in deals ongoing.

      FREE Freight in the lower 48 states

One PERFECT Silver photo set available. Call to discuss.

The PS amps compete with the best amps made for sound quality at a fraction of their cost. Reviews have been superb comparing the amps to competition selling for more than double their price.

“The first amplifier I gave up a lifetime obsession with tubes for”
Arnie Nudell, founder, Infinity Systems.

BHK Signature amplifier-Clearance Sale now ongoing

$7499.00 in stereo

$14998.00 a pair in mono

                              BHK amp shown in silver, also available in black

The
BHK Signature features a zero-loss vacuum tube input stage coupled to a
high bias deferentially balanced MOSFET output. This amplifier has few
rivals at any price and produces 250 watts per channel into 8 ohms. The
BHK Signature power amplifier culminates one man’s life long quest for
perfection in power amplification. Bascom H. King’s magnum opus combines
a vacuum tube input with a powerful MOSFET output capable of either
250/500 watts per channel in the Stereo 250, or 300/600 watts in the
mighty Mono 300.  The BHK Signature Series amplifiers can drive any
loudspeaker to musical perfection and is the second most important
element in your music reproduction chain behind the loudspeaker itself.

• Zero-loss vacuum tube input stage


• Mono version fully paralleled inside (not like a traditional bridged approach)


• Differentially coupled balanced MOSFET output stage


• All through hole construction (no surface mount parts)


• RCA Single ended input


• XLR balanced input


• 250 watts per channel 8Ω Signature 250 stereo


• 500 watts per channel 4Ω Signature 250 stereo


• 2Ω stable Signature 250 stereo


• 300 watts 8Ω Signature 300 mono


• 600 watts 4Ω Signature 300 mono


• 1000 watts 2Ω Signature 300 mono


• Less than 0.1% thd 20Hz to 20kHz at rated power


• Damping factor 100 for excellent loudspeaker control


• Front panel standby button for vacuum tube input


• -3dB greater than 200kHz


• Dual, custom, solid copper, gold plated output binding posts


• Fully balanced from input to output


• 83 pounds


• Input 12 volt trigger


• Easy access for tubes

All units come with the 3-year PS factory warranty.

We accept PayPal, AMEX, Visa, Discover and MasterCard as well as money orders.
Read our AudiogoN #1 rated feedback and call me at 770-667-5633 with questions or to order.
GA & HI residents add sales tax

Brands carried:
Acoustic Zen, AGD GAN amplifiers, Ampsandsound tube electronics, Audio Space tube electronics, Audeze headphones, Audio Alchemy, Auralic streaming devices & DAC's,Black Ice Audio, Bob Carver tube amplifiers & Loudspeakers, Burson Audio, Core Power Technologies A/V, DSPeaker room correction products, EAT Turntables, ELAC Speakers, Emerald Physics Loudspeakers amplifiers & DSP Crossovers, Focal headphones, Gallo speakers, Graham Slee, HifiMan headphones, Iso-Acoustics, Jolida tube electronics, LSA Speakers, Lehmann phono stages, Marantz Reference, Melco servers, Micromega, MOFI Turntables, MrSpeakers headphones, Musical Fidelity, Music Hall turntables, Ortofon cartridges, Outlaw Audio, Peachtree Audio, Project turntables, PS Audio amps, preamps, DAC's & power regenerators, Pure Audio Labs DAC's, Quad speakers, headphones & electronics, Rethm speakers, Scansonic speakers, Spread Spectrum Ampzilla amps & preamps, Sumiko cartridges, Sweet Vinyl pop and click filters, Syzygy wireless subs w/room correction, Wireworld &  Wywires cables

Sales policies on the Underwood Hifi Inc. website at www.underwoodhifi.com