Channel in a Box - AMEK Professional Audio Design and … Datasheet.pdf · · 2007-10-09"The...
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Line input - The Line Input is a 10k0 balanced and floating transformer design which provides excellent isolation and protection against ground currents and unwanted signals. Mic Input - The Mic Input is a TLA (Transformer- Like Amplifier). A rotary switch is provided to step the Gain range with a continuously variable Trim. The Mic Input impedance is 5k0 Ohms, producing extremely low loss from 150 or 200 Ohms microphones. Filters and EQ - The Filters and EQ stages are virtually identical with those of the AMEK 9098i In-Line Console including familiar features such as 'GLOW' and 'SHEEN'. The result is an EQ that is highly effective without being in any way aggressive in character. Compressor The Compressor Section is an all analogue design which musically emulates the best of Mr. Rupert Neve's past designs. Compression ratio up to 40:1 is provided, virtually a limiter but without the aggressive sound of a limiter. When the 'Link' button is enabled, identical gain reduction can take place when two or more CIBs are linked together. The gain reduction applied is from whichever path has the greatest signal. Output Section A Rotary Fader prior to the output stage allows control of the each of the path's signal levels. Connections for 5k or 10k ohms external faders are provided via XLR connectors. There has been growing realisation that, in spite of the sonic limitations of digital sound processing, a very high quality analogue signal path at the input will reflect throughout the whole audio chain and go a long way to satisfy the professional sound engineer. With careful attention to the interfaces the character of the input signal can be preserved throughout the entire system. The trend to higher digital resolution makes it even more important that we focus carefully on the integrity of signals fed to the input. "The Channel in a Box (CIB) is essentially the input channel of a very high caliber "In-Line" Console contained in a 1U rack mounted assembly and complete with its own power supply. It incorporates a precision switched gain microphone preamplifier; a transformer coupled Line Input amplifier, High and Low Pass filters, Four band Equalisation, and a full- featured Compressor. "It has become common practice to surround the control room console with a collection of microphone preamps, equalisers and compressors - often using the original Console purely as a monitor. "The CIB was designed for engineers and producers who need a powerful yet compact outboard unit combining the sonic quality and features that they might wish for in their console of choice." Designed by a Legend Crafted by AMEK Channel in a Box ™ A Brief Guide
Transcript of Channel in a Box - AMEK Professional Audio Design and … Datasheet.pdf · · 2007-10-09"The...
Line input - The Line Input is a 10k0 balancedand floating transformer design which providesexcellent isolation and protection againstground currents and unwanted signals.
Mic Input - The Mic Input is a TLA (Transformer-Like Amplifier). A rotary switch is provided tostep the Gain range with a continuouslyvariable Trim. The Mic Input impedance is 5k0Ohms, producing extremely low loss from 150or 200 Ohms microphones.
Filters and EQ - The Filters and EQ stages arevirtually identical with those of the AMEK 9098iIn-Line Console including familiar features suchas 'GLOW' and 'SHEEN'. The result is an EQ thatis highly effective without being in any wayaggressive in character.
CompressorThe Compressor Section is an all analoguedesign which musically emulates the best of Mr.Rupert Neve's past designs.Compression ratio up to 40:1 is provided,virtually a limiter but without the aggressivesound of a limiter.When the 'Link' button is enabled, identical gainreduction can take place when two or moreCIBs are linked together. The gain reductionapplied is from whichever path has the greatestsignal.
Output SectionA Rotary Fader prior to the output stage allowscontrol of the each of the path's signal levels.Connections for 5k or 10k ohms external fadersare provided via XLR connectors.There has been growing realisation that, inspite of the sonic limitations of digital soundprocessing, a very high quality analogue signalpath at the input will reflect throughout thewhole audio chain and go a long way to satisfythe professional sound engineer. With carefulattention to the interfaces the character of theinput signal can be preserved throughout theentire system. The trend to higher digitalresolution makes it even more important thatwe focus carefully on the integrity of signalsfed to the input.
"The Channel in a Box (CIB) is essentially the inputchannel of a very high caliber "In-Line" Consolecontained in a 1U rack mounted assembly andcomplete with its own power supply. It incorporatesa precision switched gain microphone preamplifier;a transformer coupled Line Input amplifier, High andLow Pass filters, Four band Equalisation, and a full-featured Compressor.
"It has become common practice to surround thecontrol room console with a collection ofmicrophone preamps, equalisers and compressors- often using the original Console purely as amonitor.
"The CIB was designed for engineers andproducers who need a powerful yet compactoutboard unit combining the sonic quality andfeatures that they might wish for in their console ofchoice."
Designed by a LegendCrafted by AMEK
Channel in a Box™
A Brief Guide
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CHANNELIN A BOX
www.purepath.co.uk
®
+22dBuTLA at unity gainMaximum Input Level
Better than 0.002%THD measured at 1kHz
Output Level +20dBu
Gain setting 42dBu
Better than 0.0015%THD measured at 1kHz
Input/Output level +20dBu
Unity gain settingHarmonic Distortion
Better than -98dBrI/P terminated with zero ohmsBetter than -98dBrI/P terminated with 150 ohms
(Measured at unity gain)
Better than -129dBrI/P terminated with zero ohmsBetter than -127dBrI/P terminated with 150 ohms
(Measured with gain at 36dB)
Better than -133dBrI/P terminated with zero ohmsBetter than -128dBrI/P terminated with 150 ohms
(Measured with gain settings above 54dB)
(Bandwidth 22Hz-22kHz)Equivalent Input Noise
Better than 60dBr@ 1kHz
Input Balance> 5,000 ohmsT.L.A. Input Impedance
Input Impedance+72dBGain
Mic Input
Specification
input at unity gainBalanced and floating transformer,Maximum Input LevelTHD measured at 1kHz
Unity gain setting, input/output level +20dBuHarmonic Distortionbandwidth 22Hz-22kHzMeasured at output,Overall Noise
Gain
@ 1kHz
Input BalanceBridging input impedance
Input Impedance
Line Input
@+20dBu, 1kHzUnity gain with filters inDistortion
@+20dBu, 1kHz
At the output, unity gain with filters inNoise
Filters
@+20dBu. 1kHz Better than 0.0025%
Unity gain, with all EQ in,Distortion22Hz-22kHz Better than 92dBu
At the output, unity gain with all EQ in,Noise
Equaliser Input signal +10dBu, 1kHzSettings as for Noise above,Distortionattack and release at mid setting
Threshold at 0dBu,
Measured at output, gain at unity, ratio at max,NoiseCompressor
Output
Measured at the Mic Path outputMeasured at the Line Path output
Balanced and floating transformer,
Maximum Output Level
+22dBu
Better than 0.002%
Better than 98dBu
-6dB to +12dB
Better than 60dBr
> 10,000 ohms
Better than 0.0025%
-95dBu
Better than 0.02%(mostly 2 Harmonic)nd
Better than -94dBu
+22dBu+22dBu
E: [email protected]: www.amek.com
Manchester+44 (0) 161 868 2400
US Headquarters+1 (800) 585 6875
Los Angeles+1 (888) 286 9358
Tokyo+81 (3) 5707 0575
Many people point to his history.Only AMEK can bring you his future.
Pure Path technology,Designed by Mr. Rupert Neve.
®
If you require a full brochure concerning this unit or others in the Pure Pathrange, please contact either AMEK International Headquarters or one of ourother global offices listed below.
®
International Headquarters
Langley House, Third Avenue,Trafford Park, ManchesterM17 1FG, United Kingdom
T: +44 (0) 161 868 2400F: +44 (0) 161 873 8010
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