Joemeek VC2, Инструкция по эксплуатации

Страница: 3 / 17

VC2 2
The microphone amplifier takes the audio signals from any microphone
and amplifies them up to 'line' level; that is, from a few millivolts, up to
about a volt.
This function is not too difficult and the microphone amplifiers on normal
professional mixers do it quite well; BUT they cut costs and corners. The
JOEMEEK Tube Channel has an uncompromising old fashioned
approach, it uses a transformer at the input and two separate amplification stages
linked to provide lowest possible noise and distortion. By using the finest
components available for the purpose, and with proven high overload amplifier
design developed over many years, the performance is startlingly good.
The JOEMEEK Tube Channel is designed for the best capacitor microphones; it is
particularly good with the Neumann range, the AKG C3000 and C414, Microtech
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 were designed to operate at 50 ohms.
Pressing in the 'hidden' switch, the impedance of the input is reduced to give an
improved transformer ratio for these microphones.
VOLUME
In normal use the JOEMEEK Tube Channel will work with any microphone and in
any audio environment. However, some capacitor microphones can produce
enormous output voltages when placed close to a loud sound source. To eliminate
any possibility of overload under these conditions, a 20dB pad switch is fitted.
NOISE
The combination of a good specially wound microphone transformer and 1996
spec. amplifiers makes the noise lower than other microphone amplifiers.