Smart Research

SMART RESEARCH Smart Guitar Di Deluxe System

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Conceived at Real World Studios, to solve the problem of a guitarist wanting to play in the control room and have amplifiers set up in a live room sometimes several hundred feet away; or feed many amps without any grounding or hum problems. Prototypes were also used at Virgin/ EMI Townhouse and Manor studios. Since then producers and artists such as Tom Lord Alge, Peter Gabriel, Paul Weller, and Jamiroquai have bought systems. Four systems were used to cure problems for Peter Gabriel's live show, where two stages had to be inter -connected with 300 feet of cable carrying guitar signals from radios to effects pedals on both stages and back to amps on the main stage without degradation,

(allowing each stage to be patched independently).

How Does It Work ?

The system comprises a TRANSMIT box andRECEIVE box. The TRANSMIT box has a high impedance input and line driver, normalled to two transformer Di/splitters, so one input can feed four isolated outputs. Also, the TRANSMIT output will drive long cables to the RECEIVE box input, which feeds two more Di/splitters providing four more outputs. In addition, the RECEIVE unit has a speaker simulator input, so you can plug the speaker output of an amp in for 'dirty' Di sounds with or without a speaker connected. All the Di/splitters on both boxes have break jack inputs and can be used separately if desired, as well as earth lift switches to stop hum problems. This means you get a total of four Di/splitters; a line driver and receiver; and a speaker simulator.

Power Supply: Voltage: Current: Connector:9-24v DC~20mA 2.1mm, positive inner pin (100mA or larger, 18v regulated analogue supply is recommended)

Input Impedance/gain: (Instrument ip) 470kΩ/0dB (unity gain)
Input Impedance/gain: (Transformer ip) 1.3kΩ/0dB (unity gain)
Input Impedance/gain: (Speaker ip) 108Ω/-38dB
Maximum Amp power into LS input: 100 Watts
Noise floor, 20-20kHz, unweighted: -101dBu
Frequency response, +/- 0.1dB: 20Hz-20kHz
Transmit/Receive unit size:118 x 98 x 43mm
Packed system weight approx:1.1kG