Audionics 1133 / 1485 / 1622 Distribution Amplifier

The 1133 and 1485 are resistively split, stereo distribution amplifiers. The 1133 has six stereo outputs and the 1485 is a ten stereo output version. The 1622 is a seven stereo output electronically balanced distribution amplifier. All of the amplifiers are based on a 220mm Eurocard to enable several distribution amplifiers to be mounted in a standard 3U, 19" rackmounted card frame.

Inputs 1133 + 1485:

Two electronically balanced, high impedance inputs, which can be operated in stereo or dual mono mode. As the stereo input has the facility to be monoed it is possible to configure the unit as dual input mixed to twelve (1133) or twenty (1485) mono outputs. Input transformers are available as an optional extra. There is also the provision for 600 ohm termination loads. Each input has an independent gain preset to give 9dB of adjustment.

Inputs 1622:

Two electronically balanced, high impedance inputs. Input transformers are available as an optional extra.

Outputs 1133:

Twelve electronically balanced, resistively split outputs for driving balanced circuits.

Outputs 1485:

Twenty electronically balanced, resistively split outputs for driving balanced circuits.

Outputs 1622:

Seven electronically balanced low impedance stereo outputs, one of which can be monoed with an on-board header. Both A and B legs of each stereo output have independent gain adjustment of 16dB. The gain-adjustment potentiometers are located at the outside edge of the card for easy access during line-up. The outputs will drive both balanced and unbalanced circuits without affecting the gain of other outputs.

Connectors 1133:

All audio inputs, audio outputs and power via a 32 way DIN 41612 connector.

Connectors 1485 & 1622:

All audio inputs outputs and power via a 64 way DIN 41612 connector.

Options:

Transformer balanced inputs

Applications:

The 1133 and 1485 Eurocards enable the user to incorporate a distribution amplifier in existing equipment or card frames. For equipment bays and audio control room applications its high packing density gives up to twenty four amplifiers (12 stereo amplifier cards) can be housed in a 3U card frame.

The 1622 Eurocard enables the user to incorporate a distribution amplifier in existing equipment or card frames. For equipment bays and audio control room applications twenty four amplifiers (12 stereo amplifier cards) can be housed in a 3U card frame.

Pre Assembled Systems:

A maximum of twelve 1133 distribution amplifiers can be supplied pre wired in a 3U, 19" rackmount card frame with an integral modular power supply. All audio inputs and outputs are pre-wired to 56 way Varicon connectors.

N.B. Please note that the 1485 requires a different card frame to the 1133. However, card frames can be custom-wired to accommodate both cards - please contact us for more details.

A maximum of twelve 1622 distribution amplifiers can be supplied pre-wired in a 3U, 19" rackmount card frame with an integral modular power supply. All audio inputs and outputs pre-wired to 56 way Varicon connectors.