Joemeek VC2 Скачать руководство пользователя страница 1 | Manualshive

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Содержание VC2

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Страница 2: ...HAT IT IS AND WHY The JOEMEEK Tube Channel is the result of continuing experimental and development work carried out over a 2 year period to incorporate the best of historic design and tube technology as an extension of the development of the other famous JOEMEEK products the Stereo Compressor the Studio Channel and the ProChannel It s best to think of the Tube Channel as four separate pieces of e...

Страница 3: ...Gefell and Audio Technica Dynamic or ribbon microphones should be used with the phantom power turned off then full advantage can be taken of the extreme low noise performance of this amplifier An unusual function switch is included on the rear panel for historic microphones this is an impedance conversion switch to optimise noise performance for elderly ribbon and moving coil microphones which wer...

Страница 4: ...d a range of mixers specifically for use by the Independent Broadcasting Authority and the BBC One of the specification clauses insisted on by them was an extreme overload margin in the microphone amplifier The reason was that although momentary overloads transients are not audible they have an effect on perceived quality A high overload margin amplifier just sounds better Nowadays many of these n...

Страница 5: ... it in that order NOTE The phantom power supply takes several minutes to reach its working voltage Remember to switch on at least 5 minutes before using the microphone CAUTION When using phantom power DO NOT USE UNBALANCED MICROPHONES It will damage magnetise the input transformer Turn up the INPUT GAIN until sound registers on the VU meter VU switch in Do not let the VU needle hit the end stop to...

Страница 6: ...design is more difficult to produce cheaply and according to those who judge equipment by specifications and not by listening the older design is less flexible in operation and more difficult to use Using 1990 s electronics for the control circuitry Ted Fletcher has recreated the compressed sound of the 60 s a sound that was unlikely ever to be heard again Totally unlike a modern compressor it can...

Страница 7: ...ss of the sound produced and thought it sensible to combine the functions of compressor and limiter to stonewall any and all signals above a certain level The musical effect is that VCA compressors sound muddy and flat while the historic compressors sound lively and retain sparkle But all compressors change the sound to some extent TheJOEMEEK Tube Channel compressor adds punch and bite without the...

Страница 8: ...hieved with any two units but this cannot be guaranteed When using the units as stereo pairs make sure that the settings on the two units are the same CONTROL EXPLANATIONS COMPRESSION simply adds gain to the compression sidechain and so increases compression In simple terms this changes the threshold of the compression although with this compressor the threshold is not clearly defined the compress...

Страница 9: ...rrect amount of compression for any particular programme material Compression particularly the JOEMEEK compressor is a creative effect for the producer In rock music it is possible to use considerable amounts of compression 10dB or more and still for the effect to be slight in classical recording conventional compression is frowned upon but the JOEMEEK compressor can be used to great effect if han...

Страница 10: ...sn t Distortion inside the compressor is virtually impossible however it is possible that the microphone amplifier is set with too much gain turn down the COMPRESSION control and readjust the microphone amplifier gain ...

Страница 11: ...d see device Used properly it can create beautiful sounds Overused it can be horrible USING THE ENHANCER Once a signal is going through the Tube Channel press the ENHANCE push button which changes the en LED from green to red turn up the DRIVE control until the Enhance LED just starts to change colour or brighten on peak sounds Turn up the ENHANCE control until the sharpening of the sound is obvio...

Страница 12: ...N All amplifiers produce distortion of some sort Modern solid state circuits have effectively eliminated distortion down to such low levels that they are very difficult to detect However such distortions that are left are basically third order these are distortions that impose microscopic additions to the sound in an unmusical way that is the distortion products are not musically related to the or...

Страница 13: ...n 1 is ground or screen Pin 2 is positive phase or hot Pin 3 is negative phase or ground for unbalanced To avoid impulsive clonks and the possibility of causing magnetising in the microphone input transformer plug in capacitor microphones before turning on the phantom power LINE INPUT The line input is a high impedance floating balanced input suitable for any line level audio signal The line input...

Страница 14: ...OW LEVEL output is 200 ohm impedance microphone level 40dB Connections are Pin 1 is ground or screen Pin 2 is positive phase or hot Pin 3 is negative phase or ground for unbalanced Output balancing is achieved electronically and these outputs behave in a similar way to transformers POWER Mains input is 230 110V AC via the IEC socket The socket has an integral fuse holder with a spare fuse fitted R...

Страница 15: ...LOAD MARGIN 30dB on Mic and Line inputs in normal operation GAIN Line in 6dB to 24dB Mic in 15dBto 68dB Insert gain 0dB Mix in gain 0dB NOISE Line in 80dB below operating level Mic in 125 5dB below input at 50dB gain 20Hz to 20KHz HARMONIC DISTORTION Generally within 0 05 rising to approx 0 14 at 4dB above nominal output level 2nd harmonic predominant AMPLITUDE FREQUENCY RESPONSE Line in 10Hz to 1...

Страница 16: ...r 230VAC and 110VAC power input HOUSING 21 rack mounting totally enclosed steel case depth approx 350mm weight 2 5Kgs WARRANTY In the unlikely case of a breakdown please return the unit in its original packing through the supplier The unit will be attended to immediately and returned to your supplier If any breakdown occurs excluding physical mistreatment within 12 months of purchase no charge wil...

Страница 17: ...VC2 16 Worldwide distribution by JOEMEEK Distribution Quay House Quay Road Newton Abbot Devon TQ12 2BU ENGLAND Tel 44 1626 333948 Fax 44 1626 333157 email sales joemeek uk com www joemeek uk com ...

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