The AHB2 is a radically different audio amplifier. Its patented design delivers performance that approaches the limits of the latest high-resolution audio formats. Benchmark's AHB2 power amplifier delivers musical details without introducing the masking effects of amplifier noise and distortion. The dynamic range of the AHB2 is 132 dB, making it 10 to 30 dB quieter than some of the very best reference-quality power amplifiers.

Unlike class-D amplifiers, the AHB2 is noise free over its ultra-wide 0.1 Hz to 200 kHz frequency range. Don't settle for the limited performance of class-D amplification.

With the AHB2, you will discover previously overlooked nuances, dynamics, and detail in your favorite tracks. Experience the full potential of the very best high-resolution 24-bit PCM and 1-bit DSD recordings.

• Much Faster than Feedback
• Eliminates Zero-Crossing Distortion
• Inherently Stable, Non-Recursive Correction
• Stable into Any Phase Angle
• Stable when Driving Very Low impedances
• No Rise in THD when Driving Low Impedances
• No Rise in THD when Running in Bridged Mono

• Benchmark Exclusive
• Not Available on Any Other Power Amplifier
• 30 to 40 dB reduction in THD
• Keeps THD+N Below 0 dB SPL at All Times
• No "Electronic Fingerprints" on the Music
• Accurate Impulse Response Into all Loads
• 132 dB SNR

• Ultra Wide 0.1 Hz to 200 kHz Response
• Bass is Delivered Without a Phase Shift
• Fast, Distortion-Free Transient Response
• Linear Phase Response
• Accurately Reproduces the Audio Waveshape
• Precise Rendering of Stereo Width and Depth
• Focused 3-D Stereo Image

• Class-AB with Class-H Tracking Rails - High Power, Runs Cool
• No Class-D Amplification - No Ultrasonic Noise
• Tightly Regulated Power Supply with AC Line Conditioning
• Immune to AC Line Noise
• Power Does not Change with Line Voltage
• THD+N Does Not Change with Line Voltage

• Complete Monitoring of Current, Voltage, THD, and Temperature
• No Performance-Compromising Protection Circuits in the Signal Path
• Lightning-Fast Tweeter Protection if THD Exceeds 2%
• Noise-Free Electronic Mute Under Fault Conditions
• Fault And Clip Indicator Lights

• 100 W Stereo – Generous Power for Most Applications
• 380 W Mono – Suitable for Large Rooms or Extreme SPL Levels
• Nearly a 4X Power Increase in Bridged Mono
• No increase in THD when Running in Bridged Mono
• Flexible Upgrade Path – Start with Stereo, Upgrade to Bridged Mono

• On/Off Momentary Switch
• Indicator Off - Power is Off
• Indicator On - Power is On
• Indicator Flashing - Fault Condition, Protection Enabled, Power Disabled

• Off - Normal
• Flash - Clip
• On - Speaker Protection Enabled Due to Excessive Clipping

• Off - Normal
• Flash - Peak-Current Warning
• TEMP On and POWER On - Over-Current Protection Enabled
• TEMP On and POWER Flashing - Over-Temperature Protection Enabled

• Off - Normal
• On - Audio is Muted

• Support Studio or HiFi Input Levels
• High CMRR for Noise Immunity
• Support Benchmark RCA to XLR Adapters

• Up - 2V RCA Source (with Adapter)
• Center - 4V HiFi XLR Source
• Down - +22 dBu Studio XLR Source

• High-Current NL2/NL4 Twist-Lock Connectors
• Better Electrical Connection than Binding Posts
• Quick and Easy Operation
• No Risk of Shorts or Polarity Reversals
• Dedicated Bridged-Mono Output Connector

• Up - Bridged Mono
• Down - Stereo
• Unit Mutes when Switching Modes

• Bidirectional Operation
• Work with all Single and Dual Direction Trigger Ports
• Time Delays Allow Noise-Free System Startup and Shutdown

• Standard 3-Pin IEC Connector
• Fuse Drawer with Two Fuses
• Auto-Ranging
• 50-60 Hz

• Insulated to Comply with Safety Regulations
• Accept Bare Wire, Spades, or Banana Plugs
• Use SpeakON Outputs for Highest Performance

• International Certifications
• Safety Tested
• Production Monitored