Crown Audio Macro-Tech MA-5000VZ - Manual (Page 39)

Page 40
Macro-Tech 5000VZ Power Amplifier
Reference Manual
8 Accessories
8.1 PIP Modules
One advantage of Macro-Tech amplifiers is the ability
to customize them using PIP (Programmable Input Pro-
cessor) and PIP2 modules. The MA-5000VZ amplifier
is equipped with ribbon cables that will connect either
directly, or via the PIP2 adapter to a PIP module. The
modules install easily.
P.I.P.–EDCb combines a sophisticated error-driven compres-
sor and smooth limiter with a maximum level setting and a
subsonic filter for each channel. The compressors have ad-
justable attack and release times, and can be set to track
each other. The compressors activate when a signal would
otherwise clip the input, an
IOC error occurs, or the output
exceeds the selected threshold. The subsonic filters have
corner frequencies of 24, 28, 32 and 36 Hz.
P.I.P.–FTE uses balanced 1:1 transformers to isolate the
amplifier from the input signal. It also includes 12 dB/octave
RFI filters, 18 dB/octave high pass filters, and 6 dB/octave 3
kHz shelving networks for “constant-directivity” horn equal-
ization. Screw terminal plugs are provided for input.
P.I.P.–CLP detects and prevents overload. Its compressor is
driven by the amplifier’s built-in
IOC error detection circuitry.
Unlike typical signal-driven compressors, it only compresses
the signal to prevent overload. It can deliver up to 13 dB of
additional headroom without being noticeable.
WARNING: Disconnect power to the amplifier when
installing or removing a
PIP module.
PIPs carrying the PIP2 logo are configured to use one
or more of the
PIP2 enhanced features. These features
are only available in a PIP2-compatible amplifier. Of
course, the exact features used will depend upon the
function of the
PIP2 module. Here are some of the avail-
able PIP and PIP2 modules:
P.I.P.–AMCb unites many features of the P.I.P.-XOV and P.I.P.–
CLP. It offers a variable 4th-order Linkwitz-Riley crossover and
an
IOC-driven, variable threshold compressor. In addition, it
provides “constant-directivity” horn equalization and filter-as-
sisted B
6
vented box equalization. Biamping and triamping
capabilities are provided via XLR connectors.
Fig. 8.1 Installing a PIP or PIP2 Module