Radial Engineering Trim-TwoRadial Engineering has released the Trim-Two passive stereo isolator, designed to simplify the use of laptop computers for keyboard players, DJs and audiovisual presenters by providing a ‘ready access’ volume control for on-the-fly adjustments when performing on a live stage.

‘There is a steady shift towards the use of a laptop as a sound source for live performance instead of a CD player, keyboard or sound module,’ Radial Sales Manager, Roc Bubel, explains. ‘For instance, a laptop is easily combined with a master keyboard using a USB interface to provide a huge selection of digitally-generated sound files plus a suitable data screen that can then be controlled as if a sound module. Where these set-ups fall short is the required use of a mouse for simple tasks such as adjusting the volume. The Trim-Two is a passive device that at once makes adjusting the volume easy while providing an isolated output to feed a PA system.’

The Trim-Two supports dual quarter-inch jacks, left and right RCAs and a stereo 3.5mm input. These are wired in parallel to allow the signal to be split off to feed an alternate signal path such as monitors. Inside, two Eclipse transformers isolate and balance the signal. These ‘passive engines’ deliver a linear frequency response from 20Hz-18kHz and are capable of handling up to +15dB signal levels thus providing typical -10dB keyboards and consumer level devices with adequate headroom. An easy-access front panel stereo level control makes adjusting the volume simple. The transformers provide galvanic isolation between the source and the destination and eliminate ground/earth loops.

Made from heavy-duty 14 gauge steel, the Trim-Two features Radial’s book-end design that offers protective zones around the connectors and controls. Inside, the I-beam frame protects the compnenets from damage that could torque the PC board and cause solder points to go cold. The steel casing also provides shielding against external magnetic fields.

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