VC2 3
In practice, the only noise audible is the noise from the microphone itself (except the
characteristic tube noise in the line amplifiers).
PHASE SHIFT and QUALITY
It's Fletcher Company theory that 'big' sounds are only possible if the recording channel
keeps the response and phase of the lower frequencies flat and under control. To
achieve this, the JOEMEEK Tube Channel has an extended frequency range down
below 15Hz. This ensures that there are no sudden phase shifts in the low end. The
proof of the theory is that the sound from the Tube Channel is characteristically full
bodied and rounded in character.
Such extreme LF response can often bring its own problems so a 'subsonic' (High
Pass) filter can be switched in with a front panel push-button.
OVERLOAD MARGINS
In the mid 1970s Ted Fletcher designed 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 notions have been forgotten and 'quality' electronics is
getting rarer and rarer. But the JOEMEEK Tube Channel applies these professional
rules and achieves a clean transparent sound.
Line level inputs are plugged into the JOEMEEK Tube Channel via an XLR connector.
The line input is electronically floating balanced using the 'Superbal' electronic circuit
designed by Ted Fletcher in the mid 70's. The circuit gives excellent rejection of
electrical interference and produces an accurate line level signal.
PHASE
A push button is provided on the front panel to reverse the phase of all audio signals
(mic and line).
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