Bedienungsanleitung Citronic LS26 (Seite 3 von 3) (Englisch)

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Applications

The LS26 is a signal distribution tool which can be used to split either 2 mono signals into 6 copies of each – or – a single mono signal into 12

copies of the original. These are boosted back up to line level and each given a volume control.

Applications for this function include…

 Zone level control for a venue with many rooms fed from the same stereo sound source (12 rooms for mono or 6 for stereo)

 Multi-amplifier signal distribution where amplifiers have no signal-through facility

 Speech distribution to headphone amplifiers for interpreters/transcribers in conference situations

 Multi-level parallel processing in a studio scenario – where several copies of the original are sent to various signal processors

Connection

All connections are via unbalanced 6.3mm mono jack and operate at line level. Use good quality screened jack leads to connect the input signal

to INPUT A and INPUT B (use only INPUT A if splitting a single mono signal to 12 outputs).

Connect each output to the respective amplifier (or processor) input, again using good quality screened jack leads.

With amplifiers turned down, connect mains (ensuring correct supply voltage is selected) using the supplier IEC mains lead.

Operation

Keep amplifier volume levels turned down.

Select the required mode – STEREO into 6 pairs of outputs or MONO into 12 outputs – on the MODE selector switch at the rear

Check input signal(s) for gain level by playing the sound source into the LS26.

If the CLIP indicators light up, reduce the output level of the signal source until the clipping is eliminated.

Bring the amplifier levels back up to the maximum required level (usually full power) for the speaker(s) being driven

Control each OUTPUT via the level controls on the LS26 front panel accordingly.

After use, turn amplifiers down before switching off power to the LS26 to avoid loud noises through speakers.

SPECIFICATIONS

Power supply

115/230Vac 50/60Hz - selectable (IEC)

Inputs

A & B, (6.3mm jack)

Outputs

1 - 6 & 7 - 12 (6.3mm jack)

Input impedance

20kohm

Output impedance

220ohms

Frequency response

20Hz - 20kHz, +0/-1dB

Signal to noise ratio

>95dB

THD

<0.008%

Dimensions

483 x 44 x 170mm

Weight

2.0kg

TROUBLESHOOTING

No function and Power switch LED is not lit

Ensure mains voltage is correct (check selector) and connected properly

Ensure mains outlet switch is on

Power is on but no audio output

Check all jack leads are OK and connected properly

Check that OUTPUT controls are not turned fully down

Check that inputs and outputs are connected the correct way around

Make sure input is connected to INPUT A in MONO mode

Check both inputs are present in STEREO mode

Distorted output

Reduce level of input source

Reduce OUTPUT level controls

Check that output is not fed to low impedance inputs in error

Output is very low level

Ensure input source is line level (0.775Vrms)

Increase OUTPUT level control(s)

Increase signal source level

Note: for further troubleshooting, refer equipment to qualified service personnel for testing

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Citronic LS26 Seite 3

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