Adam A77X (B)

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

 829,00For European customers, please select your country to view the correct price including vat

Out of Stock

Out of Stock

  • Free Shipping
  • After Sale Support
  • 2 Years Warranty
  • Secure Payments

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!


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


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Return and restocking option is available for private customers only.
We will issue a refund/credit if you are not satisfied with your purchase and notify us within 10 days of product receipt.
It must be returned in the original packaging and in saleable condition and must be returned freight prepaid.
Return and restocking rights are not applicable for Audio/Video software products.
Shipping and handling charges to and from are not refundable.

Find out more in our departments

Start typing and press Enter to search

Shopping Cart