Trim-Two
DI Box
From Radial Engineering:
The Trim-Two™ is a passive stereo direct box designed for use with laptop computers and other consumer playback devices, eliminating hum and buzz from ground loops while providing an easy-access level control for quick adjustments on stage.
The Trim-Two allows you to connect any playback device and interface it with balanced pro audio equipment without signal loss or hum and buzz from ground loops. It features two transformers which isolate and balance the audio output from your source device, eliminating noise and allowing you to use long cable runs without signal degradation. A handy mono sum switch makes it easy to reduce the output channel count or send the same signal to two destinations at once, and an accessible level control gives you the ability to adjust levels in an instant. Multiple input connector types make it easy to hook up any consumer line level playback source, from laptops & smartphones to DJ equipment. The completely passive design means that you never have to worry about powering the Trim-Two, making it truly plug & play.
Use your laptop as a sound source with the Trim-Two connected to control the volume and send a balanced signal to the PA system.
Specs
- Audio circuit type
- Passive, transformer based
- Transformer
- Custom
- Number of channels
- Dual channel (stereo)
- Frequency response
- 20Hz to 20KHz
- Dynamic range
- >100dB
- Total harmonic distortion
- 0.009%
- Input impedance
- 10K Ω, unbalanced
- Output impedance
- 2.8K Ω, balanced
- Maximum input
- +20dB @ 20Hz
- Features
- Input pad, Mono Sum, Ground lift
- Input connectors
- 1/4" RCA and 3.5mm input
- Output connectors
- XLR-M output
- Construction
- 14 gauge steel chassis & outer shell
- Size (L x W x D)
- 3.3" x 5.0" x 2" (84 x 127 x 48mm)
- Weight
- 1.55 lbs (0.70 kg)
- Power
- Passive, no power required
- Conditions
- For use in dry locations only between 5°C and 40°C
Source: Radial Trim-Two specifications page