SWR 350x Operating Instructions Manual page 19

Recommended single SWR speaker enclosures for use with the 350x include:
• Goliath III 4x10
• Goliath Junior III 2x10 (4 or 8 ohms)
• Big Bertha 2x15
• Henry the 8x8
• Triad (15" + 10" + horn)
Recommended SWR speaker combinations for use with the 350x include:
• (2) Goliath III 4x10's (8 ohm version)
• (2) Goliath Junior III 2x10's (8 ohm version)
• (2) Son Of Bertha 1x15's
• (1) Goliath Junior III 2x10 (8 ohm version) & (1) Son Of Bertha 1x15
• (1) Goliath Junior III 2x10 (8 ohm version) & (1) Big Ben 1x18
• (1) Goliath III 4x10 & (1) Goliath Junior III 2x10 (8 ohm version)
Speaker Fuse
The speaker fuse is provided to protect your speakers in the unlikely event of a power amp failure or to
protect your power amplifier from incorrect speaker impedances or hookups. Size and rating of the fuse is
3AG, 10 amp, fast-blo. Do not defeat the purpose of this feature by using a higher rated fuse as it can
damage your amplifier and void your warranty.
The fuse can open as a result of a fault in the speaker cable, the speakers themselves, or the power amp
being sent well into clipping. With this in mind, it is wise to carry extra fuses at all times.
Line Fuse (A/C or Mains Fuse)
This fuse is provided to protect the internal electronics against power surges, etc. It also protects the unit
against itself should one of the internal components fail. If this fuse should open, replace it with the same
type of fuse and rating. Do not defeat the purpose of this feature by using a higher rated fuse as it can
void your warranty.
Proper rating of the fuse is as follows:
United States (120V): 3AG, 7 amp, 250V slo-blo
Japan (100V): 3AG, 8 amp, 250V slo-blo
Europe (230V-240V): 20mm x 5mm, 4 amp, 250V slo-blo
A/C Cord Receptacle
This receptacle accepts a standard A/C power cable used with almost all current musical, professional
and household electronic devices. We recommend great care when packing up. If your unit is not in a rack
case, put the cable in your instrument or accessory case or leave it attached and looped around one of
the rack handles. If it does become misplaced, a replacement cable can be purchased at almost any
music or computer store.
Note: The rating for this cable is 3 conductor, 10 amperes minimum. Look for this rating on the
cable. Make sure the cable is plugged in all the way in both the amp and the wall socket.
Internal Feature: Vacuum Tube (Valve)
SWR installs a specially selected 12AX7A dual triode on the preamp circuitboard of every 350x. If this
tube needs replacing, we recommend that you replace it with a similar high quality product. This tube will
need replacing only if it becomes noisy or microphonic (which sounds like glass tinkling in the background
of certain notes), or completely fails (causing no signal or signal at very low levels). The tube in your 350x
should last one to three years, depending on usage.
350x • 19