BENCHMARK AHB2 STEREO AMP
$3,499.00
BENCHMARK AHB2 ULTRA HIGH RESOLUTION STEREO POWER AMPLIFIER
0% – 3 Year Financing Available!!
THE QUIETEST, CLEANEST AUDIO AMPLIFIER ON THE PLANET!
Product Description
BENCHMARK AHB2 ULTRA HIGH RESOLUTION STEREO POWER AMPLIFIER
0% – 3 Year Financing Available!!
THE QUIETEST, CLEANEST AUDIO AMPLIFIER ON THE PLANET!
SONIC PURITY THAT SURPASSES CLASS A
The AHB2 is a linear amplifier that surpasses the sonic purity of all class-A amplifiers. No amplifier delivers lower noise or lower distortion. The small, passively cooled chassis, cleanly delivers 480 Watts bridged mono into 6 Ohms, with additional reserves for driving difficult speaker loads. Unlike power-hungry class-A amplifiers, the AHB2 achieves a power efficiency that rivals that of a Class D (switching) power amplifier.
DIFFICULT SPEAKER LOADS ARE HANDLED WITH EASE
Many loudspeakers have frequencies at which their impedance drops to levels that are much lower than the “nominal” impedance. The AHB2 drives difficult phase angles and low impedances with ease. Stereo loads as low as 1.4 Ohms can be cleanly driven to full output levels. Most power amplifiers produce higher levels of distortion when the load impedance decreases. In contrast, the feed-forward error correction system in the AHB2 keeps the output clean when driving difficult loads. The AHB2 produces almost no measurable distortion at any rated load condition.
INTRODUCING THX ACHROMATIC AUDIO AMPLIFIER TECHNOLOGY™
The AHB2 is the only amplifier that leverages the patented THX-AAA Technology™. This patented system reduces distortion to vanishingly low levels while enabling several power-saving techniques.
FEATURES:
- Passive Cooling
- Innovative Low-Noise Power Supply
- Feed-Forward Error Correction
- Low-Noise Input Amplifiers
- Low Gain For Low System Noise
- Bulletproof Protection System – No Relays
- Speakon Output Connectors
- High Output Current
- Distortion Is Below Audibility
- High Damping Factor
| Line/Type | Stereo Power Amplifiers |
|---|---|
| CONTINUOUS AVERAGE OUTPUT POWER (Both Channels Driven) | |
| 100 Watts per channel into 8 Ohms | |
| 130 Watts per channel into 6 Ohms | |
| 190 Watts per channel into 4 Ohms | |
| 240 Watts per channel into 3 Ohms | |
| CONTINUOUS AVERAGE OUTPUT POWER (Bridged Mono) | |
| < 0.0003 % THD+N at full rated power, 20 Hz to 20 kHz | |
| 200 Watts into 16 Ohms | |
| 380 Watts into 8 Ohms | |
| 480 Watts into 6 Ohms | |
| OUTPUT VOLTAGE INTO VARIOUS LOAD IMPEDANCES (Both Channels Driven) | |
| < 0.0003 % THD+N at the following output voltages and load impedances, 20 Hz to 20 kHz | |
| 29.03 dBV, 31.25 dBu | 28.28 Vrms into 8 Ohms |
| 28.92 dBV, 31.14 dBu | 27.93 Vrms into 6 Ohms |
| 28.81 dBV, 31.03 dBu | 27.57 Vrms into 4 Ohms |
| 28.57 dBV, 30.79 dBu | 26.83 Vrms into 3 Ohms |
| 27.14 dBV, 29.36 dBu | 22.76 Vrms into 2 Ohms |
| OUTPUT VOLTAGE INTO VARIOUS LOAD IMPEDANCES (Bridged Mono) | |
| 0.0003 % THD+N at the following output voltages and load impedances, 20 Hz to 20 kHz | |
| 35.05 dBV, 37.27 dBu | 56.57 Vrms into 16 Ohms |
| 34.83 dBV, 37.05 dBu | 55.14 Vrms into 8 Ohms |
| 34.59 dBV, 36.81 dBu | 53.67 Vrms into 6 Ohms |
| 33.16 dBV, 35.38 dBu | 45.52 Vrms into 4 Ohms |
| SNR & DYNAMIC RANGE | |
| Rated output relative to output noise, inputs shorted | |
| Stereo Mode | (132 dB A-weighted) (130 dB Unweighted, 20 Hz to 20 kHz) |
| Mono Mode | (135 dB A-weighted) (133 dB Unweighted, 20 Hz to 20 kHz) |
| NOISE VOLTAGE | |
| NV Stereo Mode | -103 dBV, -101 dBu, 7.1 uVrms |
| Mono Mode | -100 dBV, -98 dBu, 9.8 uVrms |
| NOISE RELATIVE TO 2.83 VRMS | |
| Output noise relative to 2.83 Vrms, A-weighted, inputs shorted | |
| NR Stereo Mode | -112 dB |
| NR Mono Mode | -109 dB |
| THD+N | |
| 1 kHz, 80 kHz LPF, at full rated output into any rated load | |
| THD+N Stereo Mode | < -118 dB (< 0.00013%) |
| THD+N Mono Mode | < -118 dB (< 0.00013%) |
| THD | |
| THD Stereo Mode | < -119 dB (< 0.00011%) |
| THD Mono Mode | < -120 dB (< 0.00010%) |
| CROSSTALK | |
| 1 kHz | Better than -115 dB |
| 20 kHz | Better than -92 dB |
| FREQUENCY RESPONSE | |
| Better than 0.1 Hz to 200 kHz, +0/-3 dB | |
| -0.01 dB at 20 Hz | -0.17 dB at 20 kHz, 8-Ohm Load |
| -0.23 dB at 20 Hz | -0.32 dB at 20 kHz, 4-Ohm Load |
| DAMPING FACTOR | |
| 350 at 20 Hz | 8-Ohms |
| 254 at 1 kHz | 8-Ohms |
| 34 at 20 kHz | 8-Ohms |
| 7 at 200 kHz | 8-Ohms |
| MAXIMUM AUDIO OUTPUT CURRENT | |
| 29 A peak, per channel, both channels driven | |
| INPUT SENSITIVITY | |
| Low-Gain = 22 dBu (9.8 Vrms) | Gain = 9.2 dB |
| Mid-Gain = 14.2 dBu (4 Vrms) | Gain = 17.0 dB |
| High-Gain = 8.2 dBu (2 Vrms) | Gain = 23 dB |
| INPUT IMPEDANCE | |
| Normal mode | 50 k Ohms |
| Common mode | 1 M Ohm |
| INPUT CMRR | |
| 80 dB at 20 Hz | typical |
| 80 dB at 1 kHz | typical |
| 65 dB at 20 kHz | typical |
| TRIGGER I/O | |
| 12 VDC 200 mA current-limited output to trigger turn-on of remote devices | |
| DC input for slaving to remote devices | |
| Input responds to 3.3 V logic and higher | VIL = 1.26 V, VIH = 2.7 V |
| Absolute maximum input voltage | 30 VDC |
| Absolute minimum input voltage | -0.3 VDC |
| TI Input Impedance | 20 k Ohms |
| PROTECTION CIRCUITS | |
| Fully Electronic, No Relays | |
| Mute Sequencing | |
| Distortion Detection | |
| Short Circuit Detection | |
| Over Current Detection | |
| Over Temperature Detection | |
| SOA Detection (Output device safe operating area) | |
| AC INPUT | |
| Auto-ranging | AC Input |
| 100 to 120 VAC +/- 10% | 8 Amps, 50 – 60 Hz |
| 220 to 240 VAC +/- 10% | 8 Amps, 50 – 60 Hz |
| Idle Power Consumption | 20 W |
| Standby Power Consumption | < 0.5 W |
| DIMENSIONS | |
| NON-RACK-MOUNT VERSION | |
| 11.04″ W x 3.88″ H x 9.34 ” D | Including feet and binding posts |
| 11.04″ W x 3.47″ H x 8.33 ” D | Excluding feet and connectors |
| Faceplate height is 2RU | |
| RACK-MOUNT VERSION | |
| 19.00″ W x 3.88″ H x 10.62 ” D | Including binding posts, handles and removable feet |
| 19.00″ W x 3.47″ H x 8.33 ” D | Excluding feet and connectors |
| 9.09″ rack depth | including binding posts, excluding cables |
| 11″ rack depth | including cables |
| WEIGHT | |
| 12.5 lbs., 16 lbs. shipping | Non-rack-mount version |
| 13.5 lbs., 17 lbs. shipping | Rack-mount version |
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