Electronic Design Laboratory
17 Caledonia Place Bristol BS8 4DJ UK	Tel: (+44) 117 974 1918 Fax: (+44) 8700 558558 edl@tecno.demon.co.uk

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Inverse RIAA & General Converter Modules

Description

The stereo RIAA converter module is one of a range of modules designed to provide an additional amplifier line input. These high quality products attenuate the stereo input and correct the frequency characteristic to counteract the automatic frequency ‘shaping’ of an amplifiers phono input stage. It thus allows line level sources such as CD players, tuners, satellite receivers to connect to an available magnetic phono input. The microphone version does not require the filter stage. The module has been built with high quality components and using optimum pcb screening techniques to ensure high performance. The accuracy of the inverse RIAA frequency response makes the module ideal for laboratory testing of the phono stages of hi-fi amplifiers.

Installation

The module intercepts the signal to the phono socket of the amplifier. The signals are filtered and attenuated to remove the special RIAA frequency characteristic of the amplifiers phono input. Connect a stereo phono lead from the terminal jacks of the module labelled in-left and in-right to the line level source. Connect the jacks labelled out-left and out-right to the amplifier’s phono or microphone input.

Type 1 module

Frequency response 10Hz - 20kHz ±1dB Input Phono sockets. Nominally 1v (p-p) Output Phono sockets. 17mV for 1v input at 1kHz Attenuation -35dB at 1kHz Frequency characteristic Passive Inverse RIAA Power No batteries required Crosstalk >100dB Dimensions 80mm x 56mm x 24.5 mm     Price UK - £16.80. Carraige £1.20 USA - $30. Carraige included

Module options

	Type 1:	Matches line level sources to moving magnet amplifier inputs
	Type 2:	Matches line level sources to moving coil amplifier inputs
	Type 3:	Matches line level sources to microphone inputs
	Type 4:	Matches headphone output to moving magnet inputs

Interconnecting cables

	Cable A:	Stereo phono plugs <> phono plugs
	Cable B:	Stereo phono plugs <> DIN plug
	Cable C:	Headphone 3.5mm plug <> stereo phono plugs

Custom cables can be supplied. Contact us for pricing.

For more information including overseas ordering and dealer enquiries

edl@tecno.demon.co.uk