Adam Audio A77X

Adam Audio ADAM A77X

The A77X is a horizontally designed monitor that combines all of the technical innovations in the AX-Series. Due to its powerful, compression-free sound reproduction and excellent radiation characteristics, it is suitable both for nearfield and midfield monitoring.

The special feature of the A77X is its 2 1⁄2-way system. Both 7” woofers start to work together at 38 Hz and at 400 Hz one woofer fades out and only the second woofer continues to operate in the midrange up to 3 kHz. This prevents interferences and possible phase cancellation in the critical midrange. Even though frequency transitions and potential distortions lie outside these areas, the human ear is particularly sensitive to midrange frequencies.

Especially noteworthy in the A77X is the extremely wide stereo foundation and brilliant stereo imaging. Treble and mids are reproduced with three-dimensional realism and the lows are, as expected from a double woofer design, massive without compromising on precision.

German Handmade Precision X-ART Tweeter
2 x 7“ Woofer (Carbon/Rohacell/Glass fiber)
Amp. Power RMS / Music: 250 W / 375 W
Frequency Response: 38 Hz - 50 kHz
Max. SPL per pair at 1 m: ≥122 dB

Features & Benefits

• X-ART tweeter, handmade in Berlin    
• Allows longer operation with fewer signs of fatigue
• Their breakup is prevented by the folded diaphragms, distortions are effectively reduced to a minimumAdvanced dynamic range due to acoustically effective diaphragm surface that is 2.5 times bigger (compared to a classic tweeter according to the piston principle)
• The air velocity ratio of 4:1 during the sound generation by folded X-ART membrane    
• Direct, fast response in the high-range even with complex transients
• In-phase, simultaneous operation of the woofers below 400 Hz    
• Dry, unstrained reproduction of the low-rangeCritical center area is played by a single driver without interference
• Ultra-light but extremely dimensionally stable woofer material (Carbon/Rohacell/Glass fiber)    
• Excellent transient response even at high sound levels without breakup of the diaphragm
• Unique, horizontal 2.5-way system with 2 x 7" woofers    
• Very high resolution of the stereo image and extremely wide stereo base
• Spacious bass reflex ports on the front    
• Bass reproduction with very low compression
• Allows positioning close to walls
• Highly efficient PWM amplifier for the woofer coupled with an A/ B amplifier for X-ART tweeter    
• Low-distortion amplification at both low and high volume levels
• Linear frequency response of 38 Hz to 50 kHz    
• Unbiased reproduction in a very wide frequency band
• Maximum Peak sound pressure per pair in 1 m ≥ 122 dB    
• Powerful, compression-free sound reproduction even at very high sound levels
• Simple, stepless room acoustic adjustments over tweeter gain, low and high shelf filters    
• Allows optimal adaptation to acoustically difficult listening environments
• Analog XLR and RCA inputs    
• Optimized for balanced and unbalanced line signals
• Acoustically optimized cabinet geometry    
• Reduction of unwanted reflections on the cabinets
• Directional sound radiation in vertical plane    
• Reduction of early reflections on the surfaces of, e.g. mixing consoles, desks, etc.
• Volume control and on/off switch on the front    
• Very easy to use
• Suitable for both near- and mid-field applications    
• Enough headroom for different studio environments
• 2 years warranty with optional extension to 3 years with the registration of the product    
• Full repair service if required for 5 years

 Technical Data

• Woofer
• Number    2
• Basket Ø    7" (175 mm)
• Voice Coil Ø    1.5" (38 mm)
• Cone Material    Carbon/Rohacell/Glass Fiber
• Tweeter
• Number    1
• Type    X-ART
• Diaphragm Area    4 inch² (2420 mm²)
• Equiv. Diaphragm Ø    2" (56 mm)
• Velocity Transform Ratio    4:1
• Diaphragm Weight    0.17 g
• Built-in Amplifiers
• Woofer    1
• Type    PWM
• Amp. Power RMS / Music    100 W / 150 W
• Subwoofer    1
• Type    PWM
• Amp. Power RMS / Music    100 W / 150 W
• Tweeter    1
• Type    A/B
• Amp. power RMS / music    50 W / 75 W
• Control Panel
• Input Sensitivity    -∞ to +14 dB
• High Shelf EQ > 5 kHz    ±6 dB
• Low Shelf EQ < 300 Hz    ±6 dB
• Tweeter Gain    ±4 dB
• Input Connectors
• Analog    XLR / RCA
• General Data
• Frequency Response    38 Hz - 50 kHz
• THD 90 dB / 1 m > 100 Hz    ≤0.5 %
• Max. SPL with sine wave acoustic 100 Hz to 3 kHz at 1 m    ≥114 dB
• Max. SPL per pair at 1 m    ≥122 dB
• Crossover Frequencies    400 / 3000 Hz
• Input Impedance    30 kOhm
• Panel    Front
• Weight    28.2 lb (12,8 kg)
• Magnetically Shielded    No
• Height x Width x Depth    9.5" (235 mm) x 21" (530 mm) x 11" (280 mm)
• Warranty    5 years (2 years warranty plus 3 years optional with product registration)
• Delivery Contents    Power cord, manual

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