When you are unwilling to compromise performance we offer the BHK 300 Signature 300 watt Monoblock power amplifiers. They are among a rare handful of amplifiers capable of uncovering music's rich tapestry in a lush, uncompromised, effortless presentation.
Product Description
— Product Description
Introduction
When you’re unwilling to compromise on performance, the BHK Signature 300 W Monoblock delivers. Refined by industry legend Bascom H. King, these mono blocks produce 300 watts into 8 Ω, 600 watts into 4 Ω, and 1,000 watts into 2 Ω. Built around a zero-loss vacuum-tube input stage and a high-bias, differentially balanced MOSFET output, they uncover every nuance in your music with lush, effortless clarity.
Design
The hybrid vacuum-tube/MOSFET topology sets a new standard for musical performance. Compared to the 250 Stereo, the Mono 300 doubles the output current—and doubles the number of tubes, power supplies, transistors, capacitors, and resistors. From the very first note, you’ll hear details long buried in your library come alive in a revelation of resolution and dynamics.
Application
Capable of driving any loudspeaker to musical perfection, the BHK Signature 300 W Monos excel in systems of all sizes. With a minimum of 300 watts into 8 Ω, 600 watts into 4 Ω, and 1,000 watts into 2 Ω, these amplifiers reproduce live-like dynamics, overtones, and soundstage depth that most amps simply can’t match. If you demand barrier-free, uncompromised performance, these monoblocks are your ideal partner.
Technology Overview
As the linchpin of any stereo chain, the power amplifier’s critical role is often overlooked. The BHK Signature 300 preserves delicate overtones, spatial cues, and transient details thanks to its low-feedback design. Hand-matched Russian Gold Lion 6922 tubes serve as the input valve, seamlessly interfacing with DACs and preamps, while an all-N-channel MOSFET output stage delivers balanced waveforms without degradation. This hybrid approach harnesses the best of both worlds—perfect detail from tubes and robust power from solid-state devices.
Key Features
- Zero-Loss Vacuum-Tube Input Stage
- High-Bias, Differentially Balanced MOSFET Output
- Through-Hole Construction for Enhanced Serviceability
- RCA Single-Ended & XLR “True” Balanced Inputs
- 300 Wpc into 8 Ω; 600 Wpc into 4 Ω; 1,000 Wpc into 2 Ω
- Frequency Response: –3 dB at 200 kHz
- Total Harmonic Distortion: < 0.1% (20 Hz–20 kHz at Rated Power)
- Damping Factor: 100
- Front-Panel Standby Button
- Dual Copper-Plated Output Binding Posts
- 12 V Trigger Input
- Easy Access to Tubes for Quick Replacement
Specifications
Mechanical Specifications
Unit Weight: 83 lbs [37.6 kg]
Unit Dimensions: 17.1″ × 8.7″ × 14″ chassis only; 15″ deep including connectors
Shipping Specifications
Shipping Weight: 92 lbs [41.7 kg]
Shipping Dimensions: 21″ × 13″ × 19″
Power & Electrical Specifications
Voltage Options (factory set only): Japan 100 V; North America 120 V; Europe/Asia/Australia/New Zealand 230 V
Mains Power Inputs: IEC C14
Fuse Complement (all countries): 4 × 10 A fast-blow H-rated 5 × 20 mm rail fuses
• 100 VAC countries: 1 × 2 A slow-blow; 1 × 12 A slow-blow
• 120 VAC countries: 1 × 2 A slow-blow; 1 × 10 A slow-blow
• 230 VAC countries: 1 × 1.6 A slow-blow; 1 × 5 A slow-blow
Power Consumption:
• Standby: 75 W
• Idle: 175 W
• Rated power @ 8 Ω: 850 W
• Rated power @ 4 Ω: 1,600 W
Audio Connections
Audio Inputs: RCA (unbalanced); XLR (balanced)
Speaker Outputs: Gold-plated copper binding posts (2 pair)
DC Trigger Input: 3.5 mm, 5–15 V DC
Signal Specifications
Gain: 30.5 dB ± 0.5 dB
Sensitivity for 300 W into 8 Ω: 1.3 V
Noise (100 Hz–20 kHz): < –85 dBV
Input Impedance (unbalanced): 50 kΩ
Input Impedance (balanced): 100 kΩ
Output Impedance (50 Hz, 2.8 VRMS): < 0.1 Ω
Frequency Response (2.8 VRMS): 10 Hz–20 kHz ± 0.1 dB; 10 Hz–200 kHz + 0.1/– 3.0 dB
Distortion & Intermodulation
1 kHz, 1 W/8 Ω: < 0.01% THD
20 Hz–20 kHz, 1 W/8 Ω: < 0.1% THD
1 kHz, 400 W/4 Ω (120 VAC): < 0.1% THD
Output Power Ratings (120 VAC mains, 1 kHz, 1% THD)
8 Ω: 300 W minimum
4 Ω: 600 W minimum
2 Ω: 1,000 W minimum
Accessories & Warranty
Included Power Cords: US (NEMA 5-15P); Schuko (CEE 7/7) for 230 V; UK (BS 1363) for 230 V
Warranty: 3 years parts and labor on unit; 1 year on vacuum tube
—Related

Sign Up for special
News & Offers
.png)
.png)
Inspire your creativity

(702) 524-9618
Lifestyle AVI specializes in the sales and installation of audio and video equipment that sits at the pinnacle of design and quality. We’re also your premier destination for home theaters and home automation. Browse our store to find the latest gear or visit our showroom in person at Las Vegas's Tivoli Village.
Hours:
Monday - Saturday: 9am-5pm
Sunday: Closed



