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Manual-1

OPERATORS  MANUAL

MA 6S

MULTICHANNEL AMPLIFIER

QUICK START

You gots your good habits, and you gots your bad habits. A good habit is to read at least this much of the manual. A bad

habit is not to read any of this manual. Reading just this section can prevent grief worse than your worst nightmare. Grief
that's hard to get rid of—harder than a bad habit.

Be sure the amplifier is 

off 

before making any connections. Euroblocks make connecting and unconnecting the amplifier

easy. They are just like little snap-on terminal blocks.The balanced Input blocks are green, and the speaker Output blocks
are black. Driving the MA 6S from a balanced source is recommended. If you just 

have 

to drive the MA 6S Input with an

unbalanced source, we recommend using cable that has two conductors with a shield. Connect the s or “hot” to the
MA 6S’s 

+

, the – or ground to the MA 6S’s 

, and connect the shield to the MA 6S’s 

SHLD. 

Do 

not

 connect the shield at

the source end. Keep your input cable lengths as short as possible. See RaneNote 110, “Sound System Interconnection” for
more information regarding this issue. Speaker loads should be no less than four ohms per output. If you are running
multiple speakers per Channel in series or parallel, 

check your impedances,

 and consider the KTM 6 Transformer Kit as an

option. If you do use 100V, 70.7V or 25V output transformers, we recommend engaging the 80 Hz High Pass Filter jumpers
as described on page Manual-4.

If you are running six separate Channels (unbridged), be sure all the 

BRIDGED

 switches on the rear panel are 

de-

pressed

. If you are running any Channels bridged, you are obviously a power user and we highly recommend you read

further into the manual regarding this issue.

With Input and Output connections completed, be sure all front panel 

LEVEL

 controls are all the way counterclock-

wise. Now flip the 

POWER

 switch and after hearing the relays click in after a second, notice that the 

READY

 lights come

on. Slowly turn up each Channel's 

LEVEL

 control to the desired gain and if all is well you should hear something pleasant.

If not, re-check connections, put on a better CD, and read more of the manual.

WEAR PARTS:

 This product contains no wear parts.

Summary of Contents for MA 6S

Page 1: ...hort as possible See RaneNote 110 Sound System Interconnection for more information regarding this issue Speaker loads should be no less than four ohms per output If you are running multiple speakers per Channel in series or parallel check your impedances and consider the KTM 6 Transformer Kit as an option If you do use 100V 70 7V or 25V output transformers we recommend engaging the 80 Hz High Pas...

Page 2: ...elay to turn off until the amplifier has been turned off and the problem corrected Normal operation is the off status 햷 CLIP LIMIT indicators Light red whenever a Channel s Output cannot follow its Input The amplifier has turned down the Input level quickly and automatically avoiding audible distortion Normal operation is the off status 햸 CHANNEL LEVEL controls Determine the Input sensitivity of e...

Page 3: ... Channel pair as shown on the MA 6S chassis silk screen When the BRIDGE switch is inactive the internal connection is defeated and both Channels operate independently 햵 AC line cord Plug this into a grounded l20 VAC AC outlet or 230 VAC if the MA 6S is internally wired for 230 V operation 햶 Line FUSE For 120 volt operation use only a 15 amp 250 volt Fast blow or Normal blow not Slow blow fuse 1 25...

Page 4: ...Manual 4 MA 6S CONNECTIONS Direct Biamp and Bridged Wiring ...

Page 5: ...eries if they have an individual impedance of less than 16 ohms each WIRING NOTE Whenever connecting any device to the MA 6S Inputs be aware of signal grounding paths Connect the shield to MA 6S Chassis Ground for proper cable shielding Some installations may permit ground connection to Signal Ground on the Euroblock but the best ground is directly to the Chassis In addition since the AC 22 does n...

Page 6: ...s available to suit your present and growing needs The nice thing about the MA 6S is that you can re configure it instead of losing money on an obsolete used piece of gear you no longer need Basically you can start out with 6 Channels at 100 watts or three Channels at 300 watts When the time comes you can step up to six Channels at 300 watts by obtaining another MA 6S and keeping the original Upgr...

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