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ADA-26S  STEREO AUDIO DISTRIBUTION AMPLIFIER 

 

 

ADA-26S

 

Doc. No. – 14480 

Page 2 of 4

 

 
 
 
 
 
 
 
 
 
 
 

 

REAR PANEL CONNECTIONS 

Figure 2 

AUDIO CONFIGURATIONS: 

 

The source and destination audio equipment must be evaluated to determine if they are Balanced or 

Unbalanced. After determination is made, refer to the drawings provided to select the proper audio 
configuration. The outputs can be any combination of balanced or unbalanced. 

 
 
 
 
 
 
 
 
 
 

Balanced In to Balanced Out 

Balanced In to Unbalanced Out 

 

Vout = Vin 

Vout = 0.5 Vin 

 
 
 
 
 
 
 
 
 
 
 

Unbalanced In to Balanced Out 

Unbalanced In to Unbalanced Out 

 

(-) Input Grounded; Vout = Vin 

Vout = 0.5 Vin 

 

(-) Input Floating: Vout = 0.75 Vin 

 
 

The input to output level comparison provided in the figures above, assumes the outputs are terminated 

into a 600

 load.

 



IN OUT 







ADA-26S 



IN OUT 







Open 

ADA-26S 


Gnd 

IN OUT 







ADA-26S 


Gnd 

IN OUT 







Open 

ADA-26S 

3

 


C

FUSE 

T125mA/T63mA 

250V

 

120/240V~ 
60Hz/50Hz 

12W 

CAUTION 

RISK OF

 

ELECTRIC SHOCK 

DO NOT OPEN

 

R I   

I N 

G P 
H U 

T T

 


C


C


C


C


C


C


C

 

L  I  

E N 

F P 
T U 

     T 

Summary of Contents for ADA-26S

Page 1: ...ADA 26S STEREO AUDIO DISTRIBUTION AMPLIFIER INSTRUCTION MANUAL SIGMA ELECTRONICS INC 1027 COMMERCIAL AVENUE EAST PETERSBURG PA 17520 0448 717 569 2681 P O Box 448 ...

Page 2: ...esirable shielding to external EMI RFI noise sources Rack mounting requires the RMK 26 rack mount kit One RMK 26 rack mount kit holds up to three of the 26 series units Sigma provides various distribution amplifiers signal generators and transcoding products in the 26 series CONNECTIONS Wiring to the module is performed via detachable screw terminal connectors Figure 1 INPUT There are dual channel...

Page 3: ...anced Balanced In to Balanced Out Balanced In to Unbalanced Out Vout Vin Vout 0 5 Vin Unbalanced In to Balanced Out Unbalanced In to Unbalanced Out Input Grounded Vout Vin Vout 0 5 Vin Input Floating Vout 0 75 Vin The input to output level comparison provided in the figures above assumes the outputs are terminated into a 600Ω load C IN OUT C C C ADA 26S C IN OUT C C C Open ADA 26S Gnd IN OUT C C C...

Page 4: ...the rear panel To select the single input six 6 output mode set the mode select switch S02 to the right position This will deactivate the Left gain controls and input on the rear panel Figure 3 Front Panel Gain Adjustment ADJUSTMENTS The ADA 26S has no adjustments other than the front panel gain control and mode selection SPECIFICATIONS INPUT Dual channel Balanced 24 dBm Maximum INPUT IMPEDANCE 30...

Page 5: ...viced by Qualified Personnel only Sigma Electronics Inc recommends service to be performed by our Factory Service Center NOTES All specifications drawings dimensions weights and other details are subject to change without notification Information is intended to give a general performance and operation guideline of the product Sigma Electronics Inc P O Box 448 1027 Commercial Avenue East Petersburg...

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