Lehmannaudio Decade High end customisable phono stage Owner's Manual

Decade phono stage

High Precision

Passive RIAA-Network

User manual

Please read completely before operating device

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Face plate audio section: (simplified)

1 2 3 4

1.

Power control LED

2. Soft Bass Rolloff Filter

Some records tend to have too much low frequency energy especially warped records. To protect your loudspeakers from this energy this Soft Bass Rolloff filter has been installed. The corner frequency is 60 Hz / 6dB per octave. The active filter is indicated by the lit LED.

3. High Gain switch

This switch adds 10dB of gain to the selected mode MM or MC. High gain is indicated by the lit LED

4. MC switch

This switch selects between 36dB (MM) and 56dB (MC) gain. MC gain is indicated by the lit LED

Rear side audio section: (simplified)

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6

1 2 3 4 5

1.

2.

S ignal input connector (In) Left Channel

Signal output connector (OUT) Left Channel

3.

Input for the external PWX II power supply

Please connect the power supply to the audio section first and then connect the complete unit to mains voltage!

4. S ignal output connector (OUT) Right Channel

5. Signal input connector (In) Right Channel

6. Ground connection

If your turntable has a separate ground cable you should connect it here. You can connect any of 4mm plugs, open ends, or cable shoes

The signal output connectors are supplying RIAA-filtered high-level output signals. Please connect your output cables to the line input to be used. For example, to a line-level preamplifier, active loudspeakers with volume control or power amplifier input with volume control.

Be careful to preserve correct channel connections – left to left and right to right.

W A R N I N G: You must not connect the output cables to a following phono input because RIAA-filtering and amplification would be done twice! You could damage the following phono stage or your power amplifier and loudspeakers! The resulting noise could even damage your hearing!!!

Notes

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Manufacturer‘s address:

Lehmann audio Vertriebs GmbH

Dipl. Ing. Norbert Lehmann

Richard Zanders Str. 54

D-51469 Bergisch Gladbach

Germany phone: +49 2202 280 6240 fax: +49 2202 280 6239 email: [email protected]

Web: www.lehmannaudio.com