ADAM Audio GTC 77 - Home Theater Loudspeaker

GTC77

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ADAM GTC77

The middle sized speaker of this series incorporates, in addition to the X-ART tweeter, two bigger (7”) subwoofers and an additional midwoofer, that will give the mid-frequencies which are essential for any musical experience, that additional terseness and vividness typical for ADAM speakers.

German Handmade X-ART Tweeter

2 x 7“ Woofers

1 x 4" Midwoofer

Frequency Response: 38Hz - 50kHz

Efficiency: 88dB/W/m

Power handling: 150W / 230W

Input impendance: 4Ω

Max peak: 118dB

STATE OF THE ART TECHNOLOGY

ADAM Audio monitors have earned a worldwide reputation as the preeminent tool for sound engineers based on technological innovations that we’ve established in the field of loudspeaker technology.

Approved BY OUR PROFESSIONAL COMMUNITY

"But the center GTC77’s sonic performance was as free of coloration on voices as I’ve heard from a center-channel speaker. [...] In addition, the GTC77 can whisper or scream and never loses its timbral character or impressive dynamic abilities at both the micro and macro levels. At high SPLs, dynamic compression was never evident."
Home Theater Magazine

Press Reviews

Sound & Vision [English]
Audiovision [English]
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PDF (2.6 MB)
Audiovision [German]
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PDF (792 KB)

Technical Data

Woofer

Number2
Basket Ø7" (175 mm)
Voice Coil Ø1.5" (38 mm)
Cone MaterialCarbon/Rohacell/Glass Fiber

Midrange

Number1
Basket Ø4" (107 mm)
Voice Coil Ø1" (25 mm)
Cone MaterialCarbon/Rohacell/Glass Fiber

Tweeter

Number1
TypeX-ART
Diaphragm Area4 inch² (2420 mm²)
Equiv. Diaphragm Ø2" (56 mm)
Velocity Transform Ratio4:1
Diaphragm Weight0.17 g

Input Connectors

AnalogBanana
LocationRear

General Data

Power Handling150 W / 230 W
Efficiency≥88 dB / W / m
Midrange / tweeter unitRotatable, changeable with woofer unit
Impedance4 Ohm
Frequency Response38 Hz - 50 kHz
Max. SPL with sine wave acoustic 100 Hz to 3 kHz at 1 m≥110 dB
Max. SPL per pair at 1 m≥118 dB
Crossover Frequencies300 / 3200 Hz
Weight45.4 lb (20.6 kg)
Height x Width x Depth32" (810 mm) x 10" (260 mm) x 12.5" (317 mm)
Warranty10 years
Delivery ContentsManual

Additional information

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