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Manual-2

FRONT PANEL DESCRIPTION

1. POWER switch.

 Two guesses ......

2. POWER indicator.

 When this yellow LED is 

lit

, the SM 26B is ready to go.

3. MASTER OUTPUT LEVEL control.

 This controls the amount of signal at the 

MIX OUTPUT

  jacks. It does not affect the

level of any of the six 

MONO OUTs

. This control changes the gain of the output stages. This allows an increase in head-

room to eliminate overloading due to excessive combined signal from one or more Inputs. Range of gain is from Off to 0dB
(unity). Refer to the block diagram in the 

SM 26B Data Sheet

 and/or schematics.

4. MONO INPUT LEVEL control. 

Each of these controls the Level of signal through that particular channel. When fed from

the 

MONO IN

 jack, each stage has a gain range from Off to +12 dB minimum, allowing level matching of -10 dBV

equipment to +4 dBu gear. When fed via the 

LEFT & RIGHT INPUT

(s), these 

CHANNEL LEVEL

 controls automati-

cally limit to a maximum of unity gain to accommodate the +12dB available from the Left & Right Input gain stages.

5. MIX/PAN controls.

 These serve two different functions:

    

MIX

: When used as a SPLITTER, this controls the mix of Left and Right Master Input program to each Channel’s 

MONO

OUTPUT

.

    

PAN

: When used as a MIXER, this control pans the Mono Channel Input between the 

LEFT

 and 

RIGHT MIX OUTPUTS

.

6. MASTER INPUT LEVEL control. 

This sets the gain of the Left & Right Master Input stages, with a range of Off to +12

dB. In the splitting mode, this controls the Level of all Mono Channel Outputs at once (i.e., those which do not have a
separate input).

Summary of Contents for SM 26B

Page 1: ... just in case your batteries are low and your mother is about to come in the room To achieve a quick understanding of the SM 26B think of it as a six channel mixer with faders and pans only Or think of it as a 2 to 6 channel splitter with output level controls and a mix knob to control how much of which input goes to which output If you get that you may stop here as long as you know how to hook up...

Page 2: ...annel When fed from the MONO IN jack each stage has a gain range from Off to 12 dB minimum allowing level matching of 10 dBV equipment to 4 dBu gear When fed via the LEFT RIGHT INPUT s these CHANNEL LEVEL controls automati cally limit to a maximum of unity gain to accommodate the 12dB available from the Left Right Input gain stages 5 MIX PAN controls These serve two different functions MIX When us...

Page 3: ...ng and sleeve are shorted anywhere in the chain by using a mono plug the entire line becomes unbalanced 3 MONO INPUTS These are TRS jacks which accept either balanced or unbalanced mono signals These are switching jacks which automatically bypass the Master LEFT RIGHT INPUTs whenever a plug is inserted see the Block Dia gram Follow wiring conventions as in 1 4 MONO OUTPUTS These TRS jacks deliver ...

Page 4: ...ly is an AC supply which is a 18 24 volt center tapped transformer capable of supplying the current demanded by this product Using any other type of supply may damage the mixer and void the warranty CHASSIS GROUNDING If after hooking up your system it exhibits excessive hum or buzzing there is an incompatibility in the ground ing configuration between units somewhere Your mission should you accept...

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