PS Audio BHK Signature 250

Hybrid power amplifier. Vacuum tube input stage and transistor output stage. This PS Audio is new with a full warranty and original packaging. The optional DAC preamplifier streamer is used, but the set can be sold at a special price. PS Audio Perfect Wave with Direct Stream upgrade. See the last 2 photos. The power amplifier offers a perfect balance of power and refinement. The importance of the power amplifier in the two-channel system chain cannot be overstated, yet it is often overlooked. Only a few music lovers truly appreciate the power amplifier's critical role in preserving music's nuanced details, because most amplifiers fail to do so. Overtones from plucked instruments, subtle cues defining placement, depth, soundstage width, and transient decays are often lost in the power amplifier. Suddenly revealed are the tiniest details, now ringing clearly through the BHK, perfectly preserved by its low-feedback, vacuum tube and MOSFET design. When it comes to musically controlling and powering loudspeakers, the BHK Signature has few peers at any price. The stereo Signature 250 produces 250 watts per channel into an eight-ohm loudspeaker, 500 watts per channel into four ohms, and is stable into two ohms—enough power to satisfy even the hungriest loads.

BHK Signature 250 Stereo and BHK Signature 300 Mono Unit Weight 83 lbs [37.6 kg] Unit Dimensions inch 17.1 x 8.7 x 14 Chassis only. 15" deep including connectors. Shipping Weight 92 lbs [41.7 kg] Shipping Dimensions inch 21 x 13 x 19 Silver Accessories Included US (NEMA 5-15P) (all versions) Schuko (CEE7/7) (230V version) UK (BS 1363) (230V version) Audio Inputs RCA (Unbalanced) XLR (Balanced) Speaker Outputs Signature 250 Gold-plated copper binding posts (2 pairs per channel) Speaker Outputs Signature 300 Gold-plated copper binding posts (2 pairs) Other DC Trigger Input 3.5mm 5–15VDC Power Consumption @Ready 75 Watts @Idle 175 Watts @Rated power 8 ohm 850 Watts @Rated power 4 ohm 1600 Watts Gain 30.5dB +/-0.5dB Sensitivity for rated output power of 250 watts into 8O 1.3V Noise 100-20KHz <-85dBV Input impedance Signature 250 stereo Unbalanced 100Kohm Balanced 200Kohm Input impedance Signature 300 mono Unbalanced 50Kohm Balanced 100Kohm Output Impedance 50Hz, 2.8VRMS <0.1 Frequency Response @2.8VRMS 10Hz - 20KHz +/- 0.1dB 10Hz - 200KHz +0.1/-3.0dB Output Power Both channels driven 120vac mains, 1kHz, 1% THD 8ohm 250W minimum 4ohm 500W minimum 2ohm Stable for musical transients