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Smart Research

Smart Research 2-Tools
SSL to Pro Tools Interface

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The Smart Research C1 Compressor
 is the original black front panel version of C2 compressor. (Two sets 
of controls and two audio channels, but no sidechain inputs, or crush 
facility). Popular in UK and US west coast studios. C1 Compressor Specifications: <li style="margin-left: 40px;">Power: 100v-240v AC selectable, 30 watts. </li><li style="margin-left: 40px;">Noise floor: Below -92 dBm (flat 20Hz-20Khz). </li><li style="margin-left: 40px;">Distortion: Below 0.025% (1K/+4 THD 20Hz-20Khz) </li><li style="margin-left: 40px;">Frequency Response: Within 1/2dB from 20Hz to 20Khz. </li><li style="margin-left: 40px;">Depth in rack: 240mm. </li><li style="margin-left: 40px;">Main input: Balanced, impedance 10K per leg. </li><li style="margin-left: 40px;">Output: Unbalanced (p2 hot default). Above +21dBm. </li><li style="margin-left: 40px;">Threshold: Adjustable -15 to +15dBm. </li><li style="margin-left: 40px;">Make-up gain: Adjustable 0 to +15dBm.</li>

Smart Research C1 Compressor
Stereo or dual-mono compressor

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The Smart Research C2 compressor houses two independant mono compressors, or in STEREO mode, the left-hand controls operate both audio channels, with the right-hand controls not used, giving true Stereo operation. The C2M version has one set of controls and two audio channels for Stereo use, whilst the C2R is a dual channel remote expander for building up to 8 channel systems controlled from one C2M or C2.The characteristic sound of this unit arises mostly from the fast response at the onset of compression, which when delayed to occur around the mid range attack settings (after 0.3 to 3 milliseconds) results in a window through which transients can still pass. When used accross a mix, or with any dynamic programme, this has the effect of adding 'punch', as the sidechain 'breathes' around these transients, while still controlling overall levels. CRUSH mode has been developed as an extension of this 'musicality', adding to and accentuating the factors involved in producing the character of the unit. CRUSH may sound surprising to those interested in more gentle applications, being capable of exaggerated compression effects, but in conjunction with the fast limit settings also introduced with this unit, it allows the C2 to be used for a much wider range of applications than the C1.Operation: <li>Fast attack and limit settings for protective limiting. </li><li>Crush mode gives f.e.t 'overcompression' with tailored frequency response, and higher distortion, for 'huge' dynamic effects. </li><li>External sidechain inputs, (for ducking etc.) </li><li>Power fail bypass for broadcast or live sound. </li><li>Ratios 1.5:1, 2:1, 3:1, 4:1, 10:1 and Limit. </li><li>Attack 0, 0.1, 0.3, 1, 3, 10, and 30 m/sec. </li><li>Release 0.1, 0.3, 0.6, 1.2, and 2.4 seconds. Options: </li><li>External fader level control input, (to order) (stereo mastering etc). </li><li>Extra dual channel slave units, for multichannel applications, (film / surround formats etc.). Circuitry: </li><li>New generation of Voltage Controlled Amplifiers. </li><li>High slew rate amplifiers, with hybrid f.e.t/ transistor inputs (Analog Devices). </li><li>High current push-pull transistor outputs. </li><li>Total symmetry throughout signal path. </li><li>No electrolytic capacitors used in main signal path. </li><li>All inputs and outputs balanced.</li>

Smart Research C2 Compressor
Stereo or dual-mono compressor

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The Smart Research C2 compressor houses two independant mono compressors, or in STEREO mode, the left-hand controls operate both audio channels, with the right-hand controls not used, giving true Stereo operation. The C2M version has one set of controls and two audio channels for Stereo use, whilst the C2R is a dual channel remote expander for building up to 8 channel systems controlled from one C2M or C2.The characteristic sound of this unit arises mostly from the fast response at the onset of compression, which when delayed to occur around the mid range attack settings (after 0.3 to 3 milliseconds) results in a window through which transients can still pass. When used accross a mix, or with any dynamic programme, this has the effect of adding 'punch', as the sidechain 'breathes' around these transients, while still controlling overall levels. CRUSH mode has been developed as an extension of this 'musicality', adding to and accentuating the factors involved in producing the character of the unit. CRUSH may sound surprising to those interested in more gentle applications, being capable of exaggerated compression effects, but in conjunction with the fast limit settings also introduced with this unit, it allows the C2 to be used for a much wider range of applications than the C1.Operation: <li>Fast attack and limit settings for protective limiting. </li><li>Crush mode gives f.e.t 'overcompression' with tailored frequency response, and higher distortion, for 'huge' dynamic effects. </li><li>External sidechain inputs, (for ducking etc.) </li><li>Power fail bypass for broadcast or live sound. </li><li>Ratios 1.5:1, 2:1, 3:1, 4:1, 10:1 and Limit. </li><li>Attack 0, 0.1, 0.3, 1, 3, 10, and 30 m/sec. </li><li>Release 0.1, 0.3, 0.6, 1.2, and 2.4 seconds. Options: </li><li>External fader level control input, (to order) (stereo mastering etc). </li><li>Extra dual channel slave units, for multichannel applications, (film / surround formats etc.). Circuitry: </li><li>New generation of Voltage Controlled Amplifiers. </li><li>High slew rate amplifiers, with hybrid f.e.t/ transistor inputs (Analog Devices). </li><li>High current push-pull transistor outputs. </li><li>Total symmetry throughout signal path. </li><li>No electrolytic capacitors used in main signal path. </li><li>All inputs and outputs balanced.</li>

Smart Research C2M Compressor (Stereo Only)
C2M stereo compressor with ability to expand using C2R slave units

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In a normal C2 unit, when in 'Stereo' mode, the left channel front panel controls become the masters for both the left and right audio paths, and the right hand controls become inactive. Both audio paths are 'sensed', the result processed, and then acted on equally to eliminate image shift (so a 'peak' on either channel results in the compression of both). By extension of this method, in a multichannel system, the master set of controls can be interlinked to sense and control any number of audio channels where image shift would otherwise be a problem. When 'stereo'or 'left master' mode is selected, the left hand front panel controls become the masters for all channels in the system.A multichannel system comprises a master C2 or C2M unit, to which is added one additional remote controlled 1RU audio rack per pair of extra channels needed. A four channel system would therefore need one master C2 (or C2M), and one C2R (remote C2). The system can be extended as needed, for more or less channels, or the additional channels unplugged and the master unit used on its own functioning as a normal unit (the only difference being that the 'sidechain' XLR connectors on the rear panel are changed to multipin types for additional control lines to and from the C2R chain). As an example for film mix formats this can be used to build a system with three interlinked channels for L-C-R to avoid image shifting, with suround L-R handled by a second pair of channels. Sub bass can be either processed separately or combined with the surround channels.This approach has been adopted for two reasons: first as the most adaptable in allowing for different choices of mix formats and the ability for additional C2R channel capacity to 'float' between control rooms or be purchased as needed, and second because of being able to offer the C2R unit at a more reasonable sale price than a complete unit. In allowing for the above configuration, we have also provided for further customisation. The master C2 unit has an external fader input, and we would be happy to discuss any further modifications required.

Smart Research C2R Slave Unit
Two-channel expander for the C2M master unit

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The Smart Research Deluxe D.I Box was designed to solve many instrument recording and D.i problems. For instance, one guitar feeding down long cables to 3 amps in a different area, without hums or change of tone. Includes: Balanced line driver for long cables; speaker level D.i input, and one unity gain Di Box/Splitter for two D.i or Amp feeds. 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. 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 Tears for Fears 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).

The system comprises a TRANSMIT box and RECEIVE box. The TRANSMIT box has a high impedance input and line driver, which will drive long cables to the RECEIVE box input, which feeds the Di/splitter giving two isolated outputs.(In the Deluxe version, there are two Di/splitters in both the TRANSMIT and RECEIVE boxes, giving 8 isolated 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 as separate Di's if desired, as well as earth lift switches to stop hum problems. This means there are a total of 8 outputs with the Deluxe version, (or 2 on the normal system); a line driver and receiver; and a speaker simulator.
As above, but including: Balanced line driver for long cables; speaker level D.i input, 4 unity gain Di Box/Splitter for up to 8 D.i's or Amp feeds

Smart Research Deluxe D.I. Box
DI box

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