SWR WORKINGMAN’S 10 Owner's Manual page 13

Receive Jack
Run a shielded patch cable from the output of your effects device to the Receive jack.
One unique feature of the Receive jack is the ability to practice along with pre-recorded music. Insert a
sound source into the Receive jack (make sure it is a mono source). Use the Effects Blend control to
mix the level of the recorded music with your instrument's level. The combined signal will be heard
through the internal speakers or your headphones. The send jack is not used.
NOTE: Inserting a plug into the Receive jack activates the Effects Blend control by receiving a
"command" through the ground created. Therefore, only a mono (2-conductor) phone plug should
be used. If you have a stereo (3-conductor) plug only, tie the ring and the sleeve (ground) togeth-
er.
If you are not getting any "effect" through the speakers, check the position of the Effects Blend control.
EXTENSION SPEAKER JACK
Use an unshielded 2-conductor cable (NOT A GUITAR CORD!) to connect an additional speaker cabinet.
Use a high quality, heavy gauge cable of at least 18 gauge (the lower the gauge, the heavier the cable).
The impedance of the speaker should be 8 Ohms or greater. If you wish to connect two additional cabi-
nets be sure their combined impedance is not less than 8 ohms (equivalent to two 16 ohm speaker
cabinets in parallel).
Recommended speaker cabs from SWR are: Workingman's 1X10T, Workingman's 1X15T,
Workingman's 2X10T, Workingman's 4X10T, Son Of Bertha, Goliath III and Big Ben.
STEREO HEADPHONES JACK
By inserting a set of stereo headphones into this jack you will be able to monitor your sound or practice
without disturbing your neighbors. The headphone volume level is adjusted by the Master Volume. We
suggest you begin with the Master Volume off (fully counterclockwise), then slowly bring the volume up to
your desired level. If you hear some distortion in your headphones that is not present with the speakers
on, turn down the volume—you are overdriving your headphones and could ruin them.
Any impedance stereo headphones will work. However, optimum impedance is 75 ohms.
THREE WAY SELECTOR SWITCH
The top position, labeled Full Range, activates both the tweeter and the 12" woofer in the
Workingman's 12, as well as the extension speaker jack. This position is the most typical setting.
The middle position, labeled Headphones Only, disconnects the signal going to the internal speakers and
extension speaker jack. Use this position when listening with heaphones only or for silent tuning (refer to To
Tuner section). The Headphones jack is always active regardless of the switch's position.
The bottom position, labeled Horn Off, disconnects the tweeter located in the upper right hand corner of
the speaker cabinet. It will not affect the 12" woofer, headphones or any extension cabinet. If you prefer
a "darker" sound or are getting a lot of fret buzz, clicks, or pick or finger noise, you may want to use this
position.
A/C LINE FUSE
The line fuse can open (blow) due to power surges or high powerline transients. This fuse will also open
in the event of an electronics failure inside your amplifier. Correct size and rating of the Line (Mains)
fuse: 3AG, 3 amp slo-blow for 120V operation (North America), and 1 1/2 amp slo-blo for 240V
operation.
WORKINGMAN'S COMBOS OWNER'S MANUAL • 11 11