Rupert Neve Designs SHELFORD CHANNEL, Operation Manual

Page 1: ...Operations Manual SHELFORD CHANNEL Transformer Gain Mic Pre amp Inductor EQ Diode Bridge Compressor...

Page 2: ...cted Consult the dealer or an experienced radio TV technician for help CAUTION Changes or modifications to this device not expressly approved by Rupert Neve Designs LLC could void the user s authority...

Page 3: ...igns with new levels of versatility delivering what can only be described as the combined essence of fifty years of Rupert Neve s designs Everyone at Rupert Neve Designs hopes that you enjoy using thi...

Page 4: ...Low Freq 4 position switch selects corner or center frequencies for the low band EQ DI Jack for direct injection DI or instrument inputs GND Lift Separates the direct connection from audio signal grou...

Page 5: ...handle signals up to 8dBU 1 GND 2 Hot 3 Cold Blend Controls the mix of the compressed and uncompressed signals Texture Continuously variable detented control for Silk Red and Blue modes Allows fine t...

Page 6: ...years for Rupert Neve This new custom designed input transformer along with its careful integration with the surrounding circuitry is critical to the Shelford Channel s bold and instantly recognizabl...

Page 7: ...ife in a way that other effects cannot Another advantage of this output stage versus vintage modules is the addition of the variable Silk circuitry which allows complete control over the harmonic cont...

Page 8: ...e the Inductor EQ and Transformer Gain microphone preamp the Diode Bridge Compressor in the Shelford Channel is based on the same topologies found in Rupert s vintage designs such as the 2254 but it e...

Page 9: ...mic harmonic content By manipulating input levels and the blend control the diode bridge circuit can be used as an automatic tone shaping tool even with minimal gain reduction INPUT CONTROLS DI and Th...

Page 10: ...er or they will not function Phase This push button switch inverts the polarity of the signal path It illuminates when engaged The symbol is often used to denote opposite polarity HPF The HPF switch e...

Page 11: ...frequency band changes to peak mode with a bell shaped boost or cut curve Utilizing the LF PEAK button and LF FREQ rotary switch an engineer has 8 tonal variations of EQ shapes to finesse the bottom...

Page 12: ...F Adjusts up to 15 dB of boost or cut at selected high frequencies COMPRESSOR LIMITER CONTROLS THE SIDE CHAIN INSERT JACKS These jack pairs are used to fine tune the compressor s operation The audio t...

Page 13: ...ld and Ratio of the compressor it is helpful to utilize the VU meter however one should ultimately rely on their ears and diligent use of the COMP IN Bypass Button for comparison SC Insert This contro...

Page 14: ...ak the HMF if the compressor seems to be affecting transient peaks Blend The blend control allows the user to dial in the desired mix ratio of the uncompressed signal with the compressed signal With t...

Page 15: ...e control the amount of Silk can be changed from essentially absent to even greater levels than could be achieved with vintage products With silk texture engaged the distortion characteristic and harm...

Page 16: ...12 66 Noise Un weighted 22Hz 22kHz source impedance 150 Ohms balanced Main Out unity gain 100 9dBu 6dB Out unity gain 106 6dBu 30dB gain Main Out 91 37dBu 66dB Gain Main Out 64 1dBu Equivalent Input...

Page 17: ...n 10Hz to 110kHz 0 32dB 120kHz Maximum Output Level 26dBu 16Hz to 20kHz Total Harmonic Distortion and Noise with SILK engaged RED TEXTURE min 100Hz 20dBu input level no load 0 0131 mostly 3rd harmonic...

Page 18: ...Time Constants Measurements taken represent full range achievable between 1 5 1 Ratio and 8 1 Ratio setting 0 dBu I P 1kHz Burst Tone used for all recorded measurements Fast TC1 Attack 180 S 1 8mS Re...

Page 19: ...0 12 14 16 18 d B u 10 100k 20 50 100 200 500 1k 2k 5k 10k 20k 50k Hz Audio Precision 07 14 16 16 34 46 FreqResp_LoFreqShelf at27 Color Sweep Trace Line Style Thick Data Axis Comment 1 1 Cyan Solid 3...

Page 20: ...0 22 5 d B u 10 200k 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k Hz Audio Precision 07 01 16 13 29 57 FreqResp_LoQMidBandEQCut at27 Color Sweep Trace Line Style Thick Data Axis Comment 1 1 Cyan Solid...

Page 21: ...0k 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k Hz Audio Precision 07 01 16 13 46 06 FreqResp_HiQMidBandEQCut at27 Color Sweep Trace Line Style Thick Data Axis Comment 1 1 Cyan Solid 3 Anlr Level A Lef...

Page 22: ...5 15 17 5 20 d B u 10 200k 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k Hz Audio Precision 07 14 16 17 01 58 FreqResp_HiFreqShelf at27 Color Sweep Trace Line Style Thick Data Axis Comment 1 1 Cyan Sol...

Page 23: ...6 14 12 10 8 6 4 2 0 2 4 d B u 20 200k 50 100 200 500 1k 2k 5k 10k 20k 50k 100k Hz Audio Precision 07 14 16 16 50 54 FreqResp_Silk at27 Color Sweep Trace Line Style Thick Data Axis Comment 1 1 Cyan So...

Page 24: ...formed THIS EXPRESS LIMITED WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED TO THE EXTEND ALLOWED UNDER APPLICABLE STATE LAW IN NO EVENT SHALL RUPERT NEVE DESIGNS BE LIABLE FOR ANY SPEC...