The Signal Path:
The main input to the Club is via a standard ¼” input on the top panel. This input has
an impedance of 1MΩ, (2MΩ @ DC), and can accept working signals up to 6Vpp. It
is protected against RF interference and ground-error overloads. After the input stage
preamp, the signal is sent to an analog GAIN pot on the front panel, and then into a
diode overdrive network. Thus, the GAIN knob controls the input sensitivity, and allows
an analog overdrive to be applied to the signal, if desired.
Following this analog input preamp, the signal is converted to 24bit PCM digital at a
44.1 KHz sampling rate. In the digital domain, ZT’s proprietary dynamics and EQ signal
processing are implemented. Also, Treble and Bass tone controls with characteristics
closely following a vintage stack are applied. Finally, adjustable Reverb processing is
done, offering the option of signal echo & decay. At this point, the signal is converted
back to analog and routed to the power amplifier.
The output amp section is carefully designed to constantly adapt to the signal
characteristics and the instantaneous power supply behavior. The amp itself is a pair
of Class A/B output stages, running fully bridged across the speaker load. The result
is very high RMS power, with extraordinary additional peak dynamics on top of that,
together with a natural, progressive overdrive characteristic.
Initial Setup:
When rst connecting your Club, before power is applied, please be sure to set the
controls as follows:
¥ REVERB set to off. (Fully counter-clockwise.)
¥ BASS set to mid-point. (12 o’clock position.)
¥ TREBLE set to mid-point. (12 o’clock position.)
¥ VOLUME set to off. (Fully counter-clockwise.)
¥ GAIN set to mid-point. (12 o’clock position.)
¥ SPEAKER switch on rear panel set to “On” position. (Towards left side.)
Now you can apply power, and turn up your instrument to the desired
level using the VOLUME knob.
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