At the heart of the Broadcast-AP – as the name may suggest – is the same circuitry as the Broadcast.
A class-A discrete, transformer-coupled circuit, designed to saturate
in a unique way reminiscent of certain recording and broadcast
consoles.  

We took the low-gain side of the
standard Broadcast as the starting point. Together, Ariel and I
exchanged the Germanium transistor for a Silicon and used an OEP
transformer – the OEP transformer saturates and distorts less below
100Hz compared to the Triad transformer used in the standard Broadcast.
These two changes together give the Broadcast-AP a darker, smoother,
more powerful tone compared to the standard version. Greater weight in
the lows, whilst retaining the open highs and upper-mids, giving the
Broadcast a ‘3D’ effect.

The control layout features both
LEVEL and GAIN TRIM potentiometers and a switchable high-pass / low-cut
filter – 100Hz @ 6dB/oct. The GAIN TRIM control has 12dB more gain than
the low-gain side of standard Broadcast, allowing the Broadcast-AP to
cover ground from clean boost through to medium gain overdrive tones. In
addition, the gain of the pedal can be increased via an internal
trimmer and – when pushed to the max – the sound becomes overloaded,
broken and fuzzy. The high-pass / low-cut filter can help keep the low
end together, especially when driving amps at higher gain and volume
levels.