550x • 21
Recommended single SWR Speaker enclosures for use with the 550x include:
Goliath III 4x10 (4 or 8 ohm versions)
Goliath Senior 6x10
Twelve-Stack 4x12
Big Bertha 2x15
Megoliath 8x10
Workingman's Tower 8x10
Recommended SWR Speaker combinations for use with the 550x include:
(2) Goliath III 4x10's (8 ohm versions)
(2) Goliath Junior III 2x10's (8 ohm version)
(2) Son Of Bertha 1x15's
(1) Goliath III 4x10 (8 ohm version) and (1) Son Of Bertha 1x15
(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)
(1) Twelve-Stack 4x12 and (1) Twelve-Pack 2x12
(2) Workingman's 4x10T's
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: 8 amp slo-blo
Japan: 8 amp slo-blo
Europe (230V-240V): 4 amp slo-blo
A/C CORD RECEPTACLE
This receptacle accepts a standard A/C power cable (supplied with the 550x in the United States) 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.
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