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1. Basic information
The OVATION PA8 is a modular amplifier. It offers multiple configuration possibilities, easy update
availability and effortless servicing through modular technology as used in the studios.
1.1 Mechanical construction
The casing is made of solid 6 mm aluminum, the front panel is 15 mm thick. This material is non magnetic
and protects superbly against electrical disturbance fields. Its large mass leads to excellent immunity to
vibrations.
1.2 Plug in slots for inputs / outputs
The PA8 is a modularly constructed pre amplifier. All of the in- and outputs are pluggable. In this manner the
pre amplifier can be individually built to your own requirement.
For high level signal sources balanced input (XLR-) and unbalanced input (RCA Cinch) connections have
been provided. Inputs for phono MM, phono MC recorder in- and outputs, a FM tuner and a digital input with
upsampling to 24 Bit / 192 kHz round off the connection possibilities of the input side.
In all there are 8 input plug-in slots available. These can be equipped completely with inputs. A processor
connection (for equalizer or loud speaker correction) can be fitted to plug-in slot 8.
In a similar manner output cards are also available. Outputs with RCA Cinch and XLR- connections are
obtainable. Upon your taste you can choose between outputs in solid state technique and tube outputs.
Three individual switchable cards can be installed on the output side.
1.3 Power supply
The PA8 possesses two independent supply units. The microprocessor and it's peripheral circuitry are
supplied from a special power supply unit that ensures very low stand by consumption and works fully
independent from the supply of the audio circuitry so that disturbing influences from the processor to the
musical signal are prevented.
The signal processing circuits for the right and left channels use switchmode power supply which can deliver
over 60 Watts. This kind of power supply produces no magnetical 50 Hz stray fields and thus avoids
disturbing influence especially to sensitive phono stages. Additionally the power supply is built into it's own
shielding metal case
All voltages are filtered by choke / capacitor combinations. Additionally each plug in card has it's own voltage
stabilizing circuitry. This ensures that no feedback from one card to the other cards occurs.
