ADAM A77X-A Active Monitor Speaker (Each)

The A77X is a horizontally designed monitor that combines all of the technical innovations in the AX-Series

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    Product Code: 100058136

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    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.

    Number 1 / 1
    Basket Ø 7" (175 mm) / 7" (175 mm)
    Voice coil Ø 1.5" (38 mm) / 1.5" (38 mm)
    Cone material Carbon / rohacell / glass / Carbon / rohacell / glass

    Number 1
    Type X-ART
    Diaphragm area 4 inch (2420 mm)
    Equiv. Diaphragm Ø 2" (56 mm)
    Velocity transform ratio 4:1
    Diaphragm weight 0.17 g

    Built-in Amplifiers
    Subwoofer 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 Tweeter gain +-4 dB

    Input connectors
    Analog XLR / RCA
    Location Rear

    General data
    Panel Front
    Frequency response 38 Hz - 50 kHz
    THD 90dB/1m > 100 Hz ?0.5 %
    Long term output ?114 dB
    Max. peak ?122 dB
    Crossover frequencies 400 / 3000 Hz
    Input impedance 30 KOhm
    Weight 28.2 lb (12,8 kg)
    Magnetically shielded Optional
    Height x Width x Depth 9.5" (235 mm) x 21" (530 mm) x 11" (280 mm)
    Warranty 5 Years

    Driver technology
    Like all models of the AX series, the A77X features the ADAM proprietary X-ART tweeter. The ´X' stands for ´eXtended frequency response' and thus for one of the features of the Accelerating Ribbon Technology that has been drastically improved: the frequency response. It now extends all the way up to 50kHz. In addition, the X-ART tweeter has higher efficiency and higher maximum sound pressure levels.

    The two 7´´ woofers are identical with that of the A7X. With their large voice coils (1.5´´) and powerful amplifiers, they are capable of both very high maximum sound pressure levels as well as very deep registers. The woofers do not cover the same frequency bands: while both of them are responsible for the (sub-) bass frequencies up to about 400Hz, only one of them reproduces the midrange. This prevents interferences between the two drivers.

    Amplifiers / controls

    Each driver has its own dedicated amplifier. A 50W A/B amp is responsible for the X-ART tweeter, while the bass-/midwoofers are driven by a 100W PWM amp each. The front panel includes a power switch and a control for the volume that retains the volume setting independently from the on/off switch.

    The rear panel features several additional controls: a gain for the high frequencies (+- 4dB) and two shelf filters for high and low frequencies.
    To ensure greater compatibility, there are both XLR (balanced) and RCA (unbalanced) connectors.

    WORLD PREMIERE at the Prolight+Sound 2011

    The A77X will be showcased for the very first time at the Prolight+Sound 2011 (Frankfurt am Main/Germany). We are looking forward to seeing you at booth C51 in Hall 6.1!

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