FORMULA SOUND PM-80R [2/8] General description

PM-80R Introduction.

To celebrate 25 years since we manufactured the first PM-80 and in response to requests to

remanufacture it, Formula Sound has introduced a limited edition PM-80R production mixer.

The PM-80R incorporates all the loved features of the original PM-80 with the benefits which modern

components and manufacturing techniques can add to the original design. The PM-80R modules are

therefore not interchangeable with the original PM-80 modules.

The PM-80 was manufactured for over 13 years and in that time many mixers were modified and

features added for specific applications. We have captured the simplicity of the PM-80 making the

PM-80R as easy to use as the original, whilst also introducing some of these features.

The signal chain is as pure as the original PM-80 and will provide the same outstanding audio quality.

The PM-80R will appeal to all sectors of the industry due to the modular construction and versatility that

the universal input module offers. This product is unique and suitable for many types of application.

The use of custom aluminium extrusions and flexible computer grade ribbon cable, which is used for the

connection to the various modules, plus gold plated connectors for all internal signal connections make

this unit equally at home in a static or mobile environment.

Like the original mixer 4, 8, (19" rack mount) and 12 channel input chassis are available. Special sizes

could also be catered for.

General Description

The Input module has been designed to be universal and is internally configurable to accept all types of

input source.

Internal gold plated jumper links are used to configure the input module - these provide a simple and

reliable way of configuring the various options available.

Concealed switches for routing to a stereo Aux buss are also featured, with the option to select pre or

post fader.

The 3 band equaliser section has been designed to perform like the original PM-80 but we have also

provided for the possibility of special E.Q versions to be supplied (more cut than boost etc.)

The equaliser section may also be disabled if required.

Internal selection of input routing to a choice of 2 stereo mix busses is also possible, which adds to the

flexibility of the design. For example Microphone inputs could be sent to the output section via the mic

buss. Insert sockets have been provided so that any input routed via the mic buss could be connected

to external equipment, compressors, limiters, etc if required. Or the insert sockets could simply provide

an output of these sources.

The Output module contains the power supply which is internally switchable to operate from 220-240V

AC or 110-120V AC. All the mixing and output circuitry are also in this module.

The Main outputs are balanced. The mixer also has Zone, Booth, and Auxiliary outputs available in

mono or stereo. Record, Sub Bass, and Mono outputs are also provided.

A powerful stereo headphone amplifier designed to drive headphones of 32 ohms or greater is

incorporated.

Visual monitoring is provided by a stereo 24 segment led bargraph meter. The meter and phones are

connected to the same signal so what you see is what you hear.

External music mute has been added to help comply with modern fire regulations.

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