PAFOUR:

The Wunder Audio PAFOUR is the 19" rack
mount, four-channel microphone preamplifier version of the PEQ1.
The PAFOUR is a fully Class-A discrete 1970's-style mic-pre utilizing
the exact mic-pre circuit as the PEQ1. The design employs proprietary,
custom-designed mic, and output transformers. It is no secret that
the huge sound is due to the make-up of the Mu-Metal transformers.
In the PAFOUR, you get four channels of the Wunder Audio sound
in one unit!
The PAFOUR cuts no corners. We have
included the same exact transformers from the PEQ1. The mere size
of these transformers is unprecedented in a 4-channel mic pre unit.
The Core material was made in 1970 and is comprised of 80% nickel,
15% Iron and 4% Cobalt yielding a fat vintage sound with virtually
no phase shift. The low turn ratio of the windings (1:1.4) yields
a mic pre that can handle very high level with no need for a pad.
The Instrument Input circuit includes
the complete Line Input stage of the PEQ1R so one can utilize the
now famous way of recording, for example DI Bass Guitar, directly
into the Line Input of the Wunder, instead of using a direct box
approach into the mic pre. This line Input stage has a huge 60
dB of input gain! No other multi-channel mic pre incorporates this
Line Input approach with this much gain.
New Added output stage. The mic pre
is identical to what we use in the PEQ1 series but we added an
additional amplifier stage at the tail end of the existing output
amp for even more headroom .
Peak LEDs for each channel.
Mic/Line Input Sensitivity switches
are the highest quality gold-plated Swiss made switches available.
All toggle switches are manufactured by C&K.
Electrolytic capacitors are the most
popular Panasonic FC 105°C. Vintage-style, rare Polystyrene
Foil capacitors are used throughout the amplifier stages. Metal
can, not plastic, BC107C and BC109B transistors imported from the
UK are used throughout the amplifier stages.
Enclosures are CAD designed to 1/1000" tolerance
and are black-powder coated. PEM nut hardware is used throughout
for solid construction. Unique transformer chassis mounts are used
for structural integrity.
Custom designed knob sets are milled
from aluminum and anodized red. Knob markers are embedded with
white plastic dowels so the white mark will never wear off.