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FISCHER AMPS

M A N U A L

SPEAKER CHECKER

Dear customer,

You have decided to buy a FISCHER AMPS product. Thank you for your confidence.

Please read this manual carefully prior to the first use of the unit and keep the manual

carefully.

Should you have further questions, please do not hesitate to contact FISCHER AMPS.

Product description:

The FISCHER AMPS

Speaker Checker has been developed for fast testing of speaker systems. The

Speaker Checker generates a sine-wave tone adjustable from 90 Hz to 9 kHz with a maximum power

of 1W, thus allowing to test all systems of a loudspeaker box. Thanks to the battery power supply,

the handheld device with belt holder can be used everywhere and fast. It is possible, for instance, to

check the speaker boxes returned from a production into the stock fast and without circumstance.

This saves a lot of time and possibly a lot of trouble which can result from a damaged loudspeaker

box which has not been checked.

Summary of content (4 pages)

PAGE 1
FISCHER AMPS MANUAL SPEAKER CHECKER Dear customer, You have decided to buy a FISCHER AMPS product. Thank you for your confidence. Please read this manual carefully prior to the first use of the unit and keep the manual carefully. Should you have further questions, please do not hesitate to contact FISCHER AMPS. Product description: The FISCHER AMPS Speaker Checker has been developed for fast testing of speaker systems.
PAGE 2
Description of actuators (front side) : (1) Controller Volume: (2) Controller Frequency setting: (3) Frequency mode switch: (4) Switch XLR output: (5) Switch On: Adjustment of volume of the output signal at the Speakon and at the XLR output jack. Pre-setting of the sine-wave frequency tone from 90 Hz to 900 Hz and from 900Hz to 9KHz to be set according to the type of loudspeaker to be checked.
PAGE 3
Adjustment of the volume controller: With a nominal impedance of the connected speaker box of 8 ohm, the Speaker Checker emits 1 W output power when the volume controller is in position (10). When testing a 4 ohm speaker box, you should adjust the level lower, since otherwise the output signal distorts. With 4 ohm load, there is a reference position of the volume controller of 2 to 3 o’clock.
PAGE 4
Feeding of a symmetrical signal into a mixing console: (Checking of a complete PA or monitor system) Set selector switch of the XLR output jack to position symmetrical. Connect the Speaker Checker to a symmetrical microphone cable with an input for a mixing console. Switch on Speaker Checker and set the volume controller approx. in position 11 o’clock. Adjust the optimum working level at the mixing console by means of the gain controller and disable the sound control, if applicable.