Adam A77X coppia (Usato)

Adam A77X pair (Used)

Tri-amplified monitor, 2 woofer 7″, A.R.T tweeter, 250W RMS

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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Specifications

Subwoofer 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 Tweeter 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)