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Upper door

Top-opening door as a cover for easy access to the amplifier.

Firm door support

Reinforced rubber support for safe door opening and handling of amplifiers.

Interior with felt and acoustic foam

Interior fully lined with acoustic felt and foam. Interior carpet base.

Watertight cable grommets

Hermetically sealed, quick-opening cable gland.

Double LAYER Panels

Panels and supports composed of wood, insulating materials and absorbent materials.

Ventilation included as standard

Compact, quiet ventilation system with high-performance extraction motor.

Rotate the phone 90° for more options

Make the most of it
your tube amp.

Designed for over-the-air recording of tube guitar amplifiers.
Also for noise measurements or tests of electronic devices and small loudspeakers.

AMP INSULATION
Dnt 40dB / 58dB (3150Hz)
PANELS
93mm thick (20mm air chamber)
EXTERIOR FINISH
Textile felt (2 shades of jaspé grey)
INTERIOR FINISH
Textile felt - Polyurethane foam

Box sizes AMP

In this table you can find the measurements (side by side) of the AMP models.

System:
EXT mm 894 1042
mm INT 660 808
846 660 AMP44
994 808 AMP53 AMP65

Recommended uses for AMP boxes

The AMP range is designed to isolate amplifiers, screens or specific sound sources. It is not a booth to go inside, but a solution to control the sound of a specific equipment or source.

Isolation of guitar amplifiers
Isolation of guitar screens
Recording of amplifiers
Reamping
Recording electric guitars at high volume
Bass recording with screen, reviewing the case for low frequencies
Sound reduction of studio amplifiers
Use in home studio to record guitars without disturbing the sound.
Use in professional studios
Amplifier testing
Testing of loudspeakers or small sound systems
Isolation of point sources
Indoor microphone recording
Screen booth 1×12, 2×12 or similar, depending on model and measurements
INSULATION: Dnt 40dB - 58dB (3150Hz)

In this table you can find the insulation data at very low frequencies (100Hz) up to high frequencies (3150Hz).

Frequency (Hz)
Dnt (dB)
100
21,4
125
24,2
160
21,8
200
20,1
250
30,1
315
31,6
400
32,0
500
43,1
630
47,4
800
48,8
1000
48,6
1250
55,8
1600
55,1
2000
54,7
2500
54,4
3150
58,1

ISO 717-1 evaluation - Dntw (C ; Ctr) = 40 dB (-3 ; -7) dB

GREENBACK / R&D Acoustics and Noise Control

Standard Components - Optional Components - Accessories

AMP SERIES COMPONENTS

Panels and supports composed of wood, insulating materials and absorbent materials covered with felt

Thickness of walls and floor: 93mm (20mm air chamber).
Door thickness: 75mm.
Larger piece / Floor and upper door: 948x948x75mm

Top-opening door

Composed of wood, insulating materials and absorbent materials covered with felt.

Compact, quiet ventilation system with high-performance exhaust fan motor

It consists of an extractor motor and two inlet and outlet ducts. It provides a continuous air renewal avoiding possible overheating inside.

Acoustic panels

Includes 2 absorbent foam panels (Foam) that can be removed and replaced according to the absorption needs.
Velcro fastening.

Watertight cable grommets

External gate cable gland. Quick connection.
Passage of 80mm / until 12 cables.

Support pads

Rubber anti-vibration pads or supports.
Measurements: 100x100x10mm.

Metal handle

Ergonomic, heavy-duty handle.
Length of 300mm to handle with both hands.

AMP ACCESSORIES

Wheels

Tente wheels with rubber tyres and brakes.

Subtlety
is in the air

AMP soundproof enclosures have been designed to meet the requirements of over-the-air recording of tube guitar amplifiers and noise measurements or tests of electronic devices and small loudspeakers.

Space for any combo amplifier + microphones. 
Interior floating panel system that reduces bass frequencies.
Easy and robust assembly system.