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Radial Engineering Trim-Two
Passive Stereo DI with Level Control


The Radial Engineering Trim-Two is a passive direct box designed for use with laptop computers, smart-phones...
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Radial Engineering Trim-Two
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The Radial Engineering Trim-Two is a passive direct box designed for use with laptop computers, smart-phones, tablets and other consumer devices where the user has a requirement for a readily available volume control for quick adjustments on stage.

The Trim-Two includes a choice of input connectors that include dual 1/4" jacks, left and right RCA's, and a 3.5mm stereo input. Each pair of connectors is wired in parallel with one another, allowing any of the inputs to be used as stereo thru-puts to feed an alternate signal path such as stage monitors. Inside, a pair of great sounding Eclipse transformers isolates and balances the signal with a linear frequency response from 30 Hz to 20 kHz. Capable of handling levels up to +15dB, these transformers provide typical -10dB consumer electronics with plenty of headroom.

As the Trim-Two is completely passive, no power is required. One merely connects the source to the Trim-Two and the XLR's to the PA System. An easy to access front panel level control makes adjusting the volume a snap, allowing the presenter or performer to quickly change the levels without the aid of a sound technician. The Trim-Two also features a handy Mono/Sum switch, making it easy to connect to mono PA systems or to split the balanced output off to two destinations. Finally a ground lift switch is included at the XLR outputs to further reduce the possibility of buzz or hum.

As with all Radial direct boxes, the Trim-Two features a 14 gauge steel I-beam inner frame and unique book-end outer shell to withstand the abuse of live production. These features all combine to make the Trim-Two a great choice for keyboard players, DJ's and audio-visual presenters that employ a laptop or tablet and demand quick access to a volume control.

Radial Engineering Trim-Two Specifications:

  • Audio Circuit Type: Passive, transformer based
  • Number of Channels: Dual channel (stereo)
  • Frequency Response: 20 Hz - 20 kHz
  • Dynamic Range: > 100dB
  • Maximum Input: +20dB @ 20 Hz
  • Total Harmonic Distortion: 0.009%
  • Phase Deviation: < 10°
  • Input Impedance: 10 kOhms, unbalanced
  • Output Impedance: 28 kOhms, balanced
  • Transformer: Custom
  • Shield: Copper foil
  • Input Pad: Variable level control
  • Mono Sum: Merges left + right sources to mono
  • Ground Lift: Disconnects pin-1 @ both XLR outputs
  • XLR Configuration: AES standard (pin-2 Hot)
  • Connectors: 1/4", RCA and 3.5 mm input, XLR-Mouput
  • Construction: 14 gauge steel chassis & outer shell
  • Finish: Durable powder coat
  • Size: (W x H x D): 3.3" x 5.0" x 2" (84 x 127 x48 mm)
  • 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
  • Warranty: Radial 3-year, transferable

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