Idiomas disponibles
Idiomas disponibles
Speaker Fuse
The speaker fuse is provided to protect your speakers in the unlikely event of a power amp failure or to pro-
tect 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, 10 amp slo-blo
Japan (100V): 3AG, 10 amp slo-blo
Europe (230V-240V): 20mm x 5mm, 5 amp 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 com-
puter 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 750x. If this tube
needs replacing, we recommend that you replace it with a similar high quality product. This tube will need
replacing 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 ver y low levels). The tube in your 750x should last
one to three years, depending on usage.
750x • 21
