The BHK Signature 250 and 300 power amplifiers are the culmination of one man’s half-century search for perfection in music’s reproduction. Bascom H. King has designed amplifiers for many companies, some selling in excess of $100,000, including: Constellation Audio, Marantz, Infinity, and Conrad Johnson. This is the first amplifier Bascom felt was good enough to lend his name to. It is his finest achievement in a lifetime of work.
Available in both stereo and mono models, the BHK Signature series is unparalleled in its ability to render details formerly lost in the music. The BHK Signature is a hybrid design enjoying performance benefits from multiple design techniques including, a balanced differential vacuum tube input, balanced differential MOSFET power outputs, and separate, isolated, analog power supplies feeding each.
When it comes to musically controlling and powering loudspeakers, the BHK Signature has no peer. The stereo Signature 250 produces 250 watts/per channel into an eight-Ohm loudspeaker, 500 watts/channel into four-Ohms, and stable into 2-Ohms; enough power to satisfy even the hungriest of loads.
The Mono Signature 300 doubles the output current with half the impedance of the stereo model. Each Mono Signature produces 300 watts into an eight-Ohm loudspeaker, 600 watts into four-Ohms, and 1000 watts into 2-Ohms.  But more than just doubling the current, the BHK Signature 300 also doubles every internal component of the 250 into one: double tubes, double power supplies, transistors, capacitors and resistors. The results are hard to put into words. The BHK Signature 300 is a clear step above the stereo 250, on the order of 20% better, though both have the same character of sound. Both the Stereo 250 and Mono 300 are one of the best performing, musical sounding amplifiers ever made. Imagine your delight listening to either. 
 
	
		
			
Unit Weight
			
83 lbs [37.6 kg]
		
		
			
Unit Dimensions
			
17.1” x 8.7” x 14” Chassis only. 15" deep including connectors.
		
		
			
Shipping Weight
			
92 lbs [41.7 kg]
		
		
			
Shipping Dimensions
			
21”x 13” x 19”
		
		
			
Color Options
			
Black
			Silver
		
		
			
Voltage Options
			Factory set only
			
Japan 100V
			North America 120V
			Europe/Asia/Australia/New Zealand 230V
		
		
			
Mains Power Inputs
			
IEC C14
		
		
			
Fuse Compliment all Countries
			
4 - 10 amp fast blow H-Rated 5x20mm Rail Fuses
		
		
			
Fuse Compliment Mains
			
100vac Countries
			1 - 2 amp slow blow H-rated 5x20mm
			1 - 12 amp slow blow H-rated 5x20mm
			120vac Countries
			1 - 2 amp slow blow H-rated 5x20mm
			1 - 10 amp slow blow H-rated 5x20mm
			230vac Countries
			1 - 1.6 amp slow blow H-rated 5x20mm
			1 - 5 amp slow blow H-rated 5x20mm
		
		
			
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 pair per channel)
		
		
			
Speaker Outputs Signature 300
			
Gold plated copper binding posts (2 pair)
		
		
			
Other
			
DC Trigger Input
			3.5mm 5-15VDC