Nothing Compares:

- Incorporating two 7-inch woofers, a midrange driver, and ADAM Audio’s X-ART tweeter, the A77H delivers an ultra-wide frequency range.

General Data:

- Display: Front panel multi-color LED

- Cabinet Design: Dual front ported

- Cabinet Material: Vinyl wrapped MDF and painted MDF front panel

- Mounting options: Threaded inserts on the bottom of the cabinet (4 x M8)

- Power consumption (max, idle, sleep): 220 W, 15 W, 3.5 W

- AC Input Voltage: 100 – 240 V, 50/60 Hz

- Power Rating: 500 W max.

- Operating Conditions: -10° C to +40° C (+14° F to +104° F); <75 % RH, non-condensing

- Weight: 17.1 kg (37 lb 11 oz)

- Dimensions (Height x Width x Depth): 236 mm x 531 mm x 350 mm (9 1/4″ x 20 7/8″ x 13 3/4″)

- Warranty: 5 years (2 years warranty plus 3 years optional with product registration)

- Delivery Contents: A77H loudspeaker, power cable, Quick Start Guide

Acoustics:

- Frequency Response @ -3 dB: 37 Hz – 41 kHz

- Frequency Response @ -6 dB: 34 Hz – 45 kHz

- Crossover Frequencies: 400 Hz, 3.0 kHz

- Max. peak SPL per speaker at 1 m (sine bursts): 106 dB SPL

- Max. peak SPL per speaker at 1 m (IEC-weighted noise): 118 dB SPL

- Max SPL in full space at 1 m with sine bursts (average 100 Hz to 6 kHz) @ 3% THD (RMS): 105 dB SPL

- Max SPL in full space at 1 m with sine bursts (average 100 Hz to 6 kHz) @ 3% THD (Peak): 108 dB SPL

- Max SPL in full space at 1 m with sine bursts (average 50 Hz to 100 Hz) @ 3% THD (RMS): 99 dB SPL

- Max SPL in full space at 1 m with sine bursts (average 50 Hz to 100 Hz) @ 3% THD (Peak): 102 dB SPL

- Dolby DARDT max SPL in full space: 118 dB SPL

- Dolby DARDT max SPL in full space (bass managed): 120 dB SPL

Audio Input Connectors:

- Analog: XLR, RCA

- Input Impedance: 9 kOhm / 3.3 kOhm

- Max. Input Level: +19 dBu

Drivers:

- Woofer: Basket Diameter: 2 x 7″ // Voice Coil Diameter: 1.5″ (38 mm) // Cone Material: MLM

- Midrange: Type: Dome Cone Hybrid (DCH) // Basket Diameter: 3.5″ // Voice Coil Diameter: 1.3″ (33 mm) // Cone Material: MLM

- Tweeter: Type: X-ART // Diaphragm Area: 4 inch² (2420 mm²) // Equivalent Diaphragm Diameter: 2″ (56 mm) // Velocity Transform Ratio: 4 to 1 // Diaphragm Weight: 0.17 g // Waveguide: HPS (rotatable) // Waveguide Dispersion: 120° horizontal, 70° vertical

Amplification:

- Woofer: Amplifier Type: PWM // Peak (10% THD, limiter deactivated): 250 W // RMS (1% THD, limiter deactivated): 200 W

- Midrange: Amplifier Type: Class A/B // Peak (10% THD, limiter deactivated): 70 W // RMS (1% THD, limiter deactivated): 55 W

- Tweeter: Amplifier Type: Class A/B // Peak (10% THD, limiter deactivated): 20 W // RMS (1% THD, limiter deactivated): 15 W

Signal Processing:

- AD converter: 24-bit

- Internal sample rate: 96 kHz

- Delay range, resolution: 0 – 10 ms, 0.1 ms

- Protection: Independent peak and thermo limiters for each driver, and amplifier thermo limiters

Control Options [via Network]:

- Networking Connector: RJ45

- Connection Type: Ethernet

- Communication Protocol: OCA using standard IP data

- Control Software: A Control (Windows and MacOS available)

- Room Adaption Options: Backplate, Extended, Sonarworks SoundID Reference integration

- Advanced Room Adaptation: 6 x PEQ, Level, Delay

- Third-party Calibration Compatibility: Import from Sonarworks SoundID Reference

Control Options [via Backplate]:

- Input Sensitivity: 0 dBu = 100 dB SPL at 1 m @ 0 dB level setting

- Level: -12 dB to +12 dB

- Input Selection: Balanced, unbalanced

- Voicings: Pure, UNR

- Room Adaption: Bass: +2, 0, -2, -4 dB // Desk: 0, -2, -4 dB // Presence: +1, 0, -1 dB // Treble: +1.5, 0, -1.5 dB