GTC77
The GTC77 is a floorstanding three-way home cinema loudspeaker with an X-ART tweeter, a 4-inch midrange driver and two 7-inch woofers. It is the mid-sized model of the Grand Theatre Components series, aimed at home cinema and music listeners.
- Three-way passive floorstanding home cinema speaker
- X-ART tweeter, 4" midrange, two 7" woofers
- Frequency response 38 Hz - 50 kHz
- Efficiency ≥88 dB/W/m, 4 Ohm impedance
- Banana input connectors on the rear
- 10-year warranty
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The GTC77 is a passive three-way speaker in ADAM Audio's Grand Theatre Components range, positioned between the GTC55 and GTC88. It combines a handmade X-ART tweeter, one 4-inch midrange driver and two 7-inch woofers, all with carbon, Rohacell and glass fibre cones. The midrange and tweeter unit can be rotated and swapped with the woofer unit.
The stated frequency response is 38 Hz to 50 kHz, with crossover points at 300 Hz and 3200 Hz. Efficiency is at least 88 dB at 1 W and 1 m, nominal impedance is 4 ohms, and power handling is given as 150 W / 230 W. Maximum output is at least 110 dB for a single speaker with a sine wave from 100 Hz to 3 kHz at 1 m, and at least 118 dB per pair.
Connection is through banana-plug terminals on the rear panel. The cabinet measures 810 x 260 x 317 mm and weighs 20.6 kg. A manual is supplied and the warranty is 10 years.
Specifikationer
- Märke
- ADAM Audio
- Modell
- GTC77
- Kategori
- Hi-Fi och hemmaljud › Högtalare
Drivers
- Woofers
- 2 x 7" (175 mm) basket
- Woofer voice coil
- 1.5" (38 mm)
- Woofer cone material
- Carbon/Rohacell/Glass Fiber
- Midrange
- 1 x 4" (107 mm) basket
- Midrange voice coil
- 1" (25 mm)
- Midrange cone material
- Carbon/Rohacell/Glass Fiber
- Tweeter type
- X-ART
- Tweeter diaphragm area
- 4 inch² (2420 mm²)
- Tweeter equivalent diaphragm diameter
- 2" (56 mm)
- Tweeter velocity transform ratio
- 4:1
- Tweeter diaphragm weight
- 0.17 g
Audio
- Frequency response
- 38 Hz - 50 kHz
- Efficiency
- ≥88 dB / W / m
- Impedance
- 4 Ohm
- Power handling
- 150 W / 230 W
- Max. SPL (sine wave 100 Hz to 3 kHz at 1 m)
- ≥110 dB
- Max. SPL per pair at 1 m
- ≥118 dB
- Crossover frequencies
- 300 / 3200 Hz
Connectivity
- Analog input connector
- Banana
- Connector location
- Rear
Physical
- Midrange / tweeter unit
- Rotatable, changeable with woofer unit
- Weight
- 45.4 lb (20.6 kg)
- Height x Width x Depth
- 32" (810 mm) x 10" (260 mm) x 12.5" (317 mm)
In the box
- Delivery contents
- Manual
- Warranty
- 10 years