TRIM-TWO user guide PASSIVE STEREO DIRECT BOX ADJUSTABLE INPUT TRIM Radial Engineering Ltd. 1588 Kebet Way, Port Coquitlam BC V3C 5M5 Tel: 604-942-1001 • Fax: 604-942-1010 • Email: info@radialeng.
TRIM-TWO™ STEREO DIRECT BOX USER GUIDE Introduction....................................................................................... 1 Features........................................................................................... 2 Overview.......................................................................................... 3 Making Connections ������������������������������������������������������������������������ 4 Controls..................................................................
FEATURES 1. ¼” INPUTS: Left and right inputs ideally suited for stereo keyboards or drum machines, wired in parallel with the RCA and mini 3.5 TRS connector. 2. RCA INPUTS: Left and right inputs provide an easy connection from a CD player or other -10dB consumer audio device. 3. 3.5mm TRS INPUT: Standard mini TRS stereo input for connecting a laptop, tablet or iPhone to the Trim-Two. 4. LEVEL: Used to set the input level going into the Trim-2. Eliminates the need for a typical PAD switch. 5.
OVERVIEW The Trim-Two is passive stereo direct box that has been designed from the ground up to be super easy to use. But unlike other DI boxes, the Trim-Two comes with a level control that lets you adjust the volume by simply reaching over and twisting a knob. The reason that the Trim-Two can be used this way is that it is intended to be used with buffered or active sources. Examples include keyboards, sound modules, DJ mixers, laptop computers or tablets.
MAKING CONNECTIONS Before making connections, it is good practice to always ensure your equipment is either turned off or volume levels set to zero. This will reduce the possibility of turn-on or connection transients from damaging more sensitive components such as tweeters. Connect the source instrument or audio device to the Trim-Two using the ¼”, RCA or 3.5mm stereo inputs. All of these are wired in parallel which enables you to use these as ‘THRU’ outputs for your personal monitoring system.
ADJUSTING THE VOLUME Direct boxes are normally connected to the mic input on a mixing desk. This enables the DI signals and mics to live side-by-side inside a snake without cross-talk. Set the volume control to 2 o’clock. Although this will reduce the output, it is a good place to start as it will likely approximate the level produced by a typical direct box. This of course is dependent of the source. If you hear distortion in the PA system or need more gain, simply adjust the level on the Trim-Two to suit.
APPLICATIONS The following are some common setups that you can enjoy using the Trim-Two: Music playback with a laptop computer or tablet - Simply connect the output from your laptop using a 3.5mm stereo cable to the Trim-Two. Connect the XLRs to the PA system. Set the volume on the Trim-Two to 2 o’clock and adjust the output level from your laptop to suit. CD player in restaurant - Connect the CD player’s RCA output to the Trim-Two using standard RCA cables.
Powered Monitor RCA Thru ¼” TRS Input XLR PA PA Controller keyboard with laptop - More and more keyboard players are using a laptop to generate audio files and ‘play’ the computer using a controller keyboard with a USB port. Connect the output from the laptop to the Trim-Two using the 3.5mm connector. Use the XLR outs to feed the PA and the ¼” outputs to feed the monitors on stage. PA Using the Trim-Two for a DJ setup - DJ mixers can be notoriously problematic due to the DJ being too loud.
OPTIONAL RACK MOUNTING KITS The J-Rak 8 and J-Rak 4 are an innovative rack mount chassis. The J-Rak 8 has eight vertical slots for Radial Trim-Two Stereo direct boxes or the other Radial J-Class products. The J-Rak 4 has four horizontal slots. Note you cannot access the mono switch on the Trim-Two when mounted in a J-Rak product, set before installing.
SPECIFICATIONS Audio circuit type: �������������������������������������������������������������������������������������������������������������������� Passive transformer isolated Frequency response: ��������������������������������������������������������������������������������������������������������������������� 20Hz to 20kHz (-1/+3db) Total Harmonic Distortion: (THD+N) ��������������������������������������������������������������������������������������0.009% (1kHz with 100k load) Dynamic range:.....
Block Diagram PHONO INPUT OUTPUT TOP LEFT LEFT 1/4” PHONE INPUTS BOTTOM/RIGHT 1/8” MINI-PHONE INPUT MONO BLEND DUAL LEVEL CONTROL CHASSIS GROUND RIGHT GROUND LIFT CW Radial Engineering Ltd.
RADIAL ENGINEERING 3 YEAR TRANSFERABLE WARRANTY RADIAL ENGINEERING LTD. (“Radial”) warrants this product to be free from defects in material and workmanship and will remedy any such defects free of charge according to the terms of this warranty. Radial will repair or replace (at its option) any defective component(s) of this product (excluding finish and wear and tear on components under normal use) for a period of three (3) years from the original date of purchase.
