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Manual-1

OPERATORS MANUAL

SM82S

STEREO MIXER

QUICK START

No one likes to read manuals. Everyone likes to just start pushing buttons and turning knobs until the desired results magically 

emerge. That’s usually OK, and with a very few exceptions, damage is unlikely to result from such procedures with the SM82S.

This product is quite obvious: Input 

LEVEL

 controls make Inputs louder or not, the stereo 

SEND

s make things happen at the 

LOOP SEND

 outputs, and so on. No real magic there. You should be aware, however, that if you want to connect a mono source to 

the SM82S, use only the 

LEFT

 Input of a channel so that the mono source will drive both the Left and the Right channels.

Set the levels of the mixer so that the red lights stay off. If they come on, you are overdoing it and distortion will result.

SM82S CONNECTION 

When connecting the SM82S to other components in your 

system for the first time, 

leave the power supply for last

. This will 

give you a chance to make mistakes and correct them before any 

damage is done to your fragile speakers and ears.

If you are making your own cables, or experience any hum 

problems after hookup, please refer to the RaneNote, “Sound 

System Interconnection” (supplied with this manual and avail-

able at rane.com).

INPUTS

The SM82S’s Inputs are unbalanced. This means that standard 

¼" connectors on the ends of any good quality cable will work 

well between your signal sources, signal processing and ampli-

fication. 

For best rejection of nasty things like hum and RF, 

keep input cables under 10 feet (3 meters) in length

.

Most sources give you the choice of stereo or mono output. 

The mixer gives you the same choice. You will note that nomen-

clature has been placed beneath the input jacks indicating which 

is RIGHT and which is LEFT (MONO). If a source is plugged 

only into the Left jack and not into the Right, both Right and 

Left channels will be fed with the Left Input. This allows the use 

of either stereo or mono sources.

OUTPUTS

The SM82S offers balanced main outputs only. This means that 

you may use them as either balanced or unbalanced, the choice 

being made by the way the connectors are wired. It’s a good idea 

to always use a TRS or stereo connector in the outputs no matter 

which mode you are using. If a “mono” connector is used, insert-

ing it into the output will short the ring (–) to ground and could 

conceivably cause a small amount of distortion to be placed on 

the tip (+). While this is not destructive, it may be significant 

enough to be audible. Balancing therefore requires that both tip 

(+) and ring (–) be wired to the following device. Unbalanced 

requires only tip and sleeve connected, leaving the unused ring 

open. 

EFFECTS DEVICES

External devices which might be used could be either mono in 

and out, while some may be mono in and stereo out, while still 

others may be stereo on both ends. The SM82S easily accom-

modates all of these varieties. If your effect is mono on both 

ends, connect its input to the SM82S LEFT LOOP SEND and 

the effect’s output to the SM82S LEFT LOOP RETURN. This 

configuration will sum Right and Left Loop Outputs to the 

mono effect input and will sum the mono effect output to the 

Left and Right Input buses. A mono-in stereo-out device would 

connect to the loop outputs in the same way; however the stereo 

outputs connect to the respective LEFT and RIGHT LOOP 

RETURNS.

EXPANDING

Connecting two or more SM82Ss together to achieve more than 

eight stereo Inputs requires that a stereo cable (tip, ring, sleeve) 

be connected between the MAIN EXPAND OUTPUT of the 

first mixer and the MAIN EXPAND INPUT of the second. 

All 32 inputs will then appear at the main OUTPUT of mixer 

number two. Only the first sixteen Inputs will be available at the 

main Outputs of mixer number one. Should you wish to have all 

Loop buses tied, connect the LOOP SENDS of mixer one to the 

LOOP EXPAND INPUT of mixer two. All sixteen stereo sends 

will then become active at the LOOP SENDS of the second mix-

er. The expand Inputs and Outputs are unbalanced signals, so to 

prevent hum,

 keep expand cables under 10 feet (3 meters) in 

length.

WEAR PARTS:

 This product contains no wear parts.

1

2

SM82S

STEREO MIXER

SEND PAN

SEND PAN

3

SEND PAN

4

SEND PAN

5

SEND PAN

6

SEND PAN

7

SEND PAN

8

RETURN

OUTPUT

SEND PAN

PAN

PAN

LEVEL

LEVEL

LEVEL

LEVEL

LEVEL

LEVEL

LEVEL

LEVEL

LEVEL

LEVEL

POWER

0

5

10

0

5

10

0

5

10

0

5

10

0

5

10

0

5

10

0

5

10

0

5

10

R

C

L

R

C

L

R

C

L

R

C

L

R

C

L

R

C

L

R

C

L

R

C

L

R

C

L

R

C

L

10

0

2

4

8

6

10

0

2

4

8

6

10

0

2

4

8

6

10

0

2

4

8

6

10

0

2

4

8

6

10

0

2

4

8

6

10

0

2

4

8

6

10

0

2

4

8

6

10

0

2

4

8

6

10

0

2

4

8

6

OL

OL

OL

OL

OL

OL

OL

OL

OL

OL

Summary of Contents for SM 82S

Page 1: ...SM82S STEREO LINE MIXER ...

Page 2: ...ain readily operable To completely disconnect this apparatus from the AC mains disconnect the power supply cord plug from the AC receptacle 16 This apparatus shall be connected to a mains socket outlet with a protective earthing connection 17 When permanently connected an all pole mains switch with a contact separation of at least 3 mm in each pole shall be incorporated in the electrical installat...

Page 3: ...ible Pour déconnecter totalement l appareil du secteur débranchez le câble d alimentation de la prise secteur 16 Cet appareil doit être branché à une prise terre avec protection 17 Quand il est branché de manière permanente un disjoncteur tripolaire normalisé doit être incorporé dans l installation électrique de l immeuble 18 En cas de montage en rack laissez un espace suffisant pour la ventilatio...

Page 4: ...he outputs no matter which mode you are using If a mono connector is used insert ing it into the output will short the ring to ground and could conceivably cause a small amount of distortion to be placed on the tip While this is not destructive it may be significant enough to be audible Balancing therefore requires that both tip and ring be wired to the following device Unbalanced requires only ti...

Page 5: ...the R 4 Input SEND Level controls determine the amount of Post Fade stereo Input is fed to the Loop Send buses Each Input s stereo SEND is summed on this bus and is available at the respective LEFT and RIGHT LOOP SENDS on the rear of the mixer 5 RETURN LEVEL control is a rotary stereo attenuator that controls the amount of Return which is to be added to the Main Output The unity gain position of t...

Page 6: ...mono signal may be connected to the LEFT input to obtain two channel mono operation 6 MAIN EXPAND OUTPUT This TRS stereo Tip left Ring right Output jack connects one SM82S to another for the purpose of expanding the number of Inputs available Use only a stereo plug in this jack a mono jack or cable will cause loss of Right channel signal and possibly distortion to the Left channel This Output also...

Page 7: ...desired to the Left and Right Outputs A stereo SEND control adjusts the amount of each Input routed to the Loop Output All eight stereo Inputs are simultaneously adjusted for stereo placement by the OUTPUT PAN control The resultant signal is added together and fed to the OUTPUT LEVEL control which has it s own Overload indicator The main Outputs are fully actively balanced allowing the use of corr...

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