Ampeg SVT-CL Specifications download pdf (Page 5)

5

The Rear Panel

SVT CLASSIC

14 2317 18 19 21 222015 16

14. AC LINE IN: Firmly insert the sup-

plied AC power cord into this socket

until it is fully seated. Plug the male

end of the cord into a grounded AC

outlet. DO NOT DEFEAT THE

GROUND PRONG OF THE AC

PLUG!

15. FUSE: This protects the unit from

damage due to overload conditions or

power line surges. If the fuse blows,

replace it only with the same size and

type.

16. POLARITY: Place this switch in

the position that provides the least

electrical buzz from the unit.

17. BIAS SECTION: These two con-

trols and sets of LEDs allow the user to

properly bias the power amp. See

“Setting Tube Bias” on page 7 for a

complete description of how to use this

section.

18. SLAVE OUT: This jack receives

the same signal that is being sent to

the power amp. It is useful for power-

ing another amp (slave) from this unit’s

preamp.

19. BALANCED OUT: This XLR jack is

the preamp output. Thus, it will include

any processing done in the Preamp

Out/Power Amp loop (20, 21). This sig-

nal can be used to feed an external

power amplifier, mixing console or

house PA system.

20. PREAMP OUT: This jack carries

the post-Master (10) signal. Using this

jack does not break the path to the

power amp. This signal can be used to

feed an external power amplifier, mix-

ing console or house PA system.

21. POWER AMP IN: This jack

accepts a signal to be sent to the

power amp and the Slave Out jack

(18). Using this jack breaks the path

from the signal that was present at the

Preamp Out jack (20). This can be

used as a post-Master (10) patch

point.

22. IMPEDANCE SELECTOR: Use

this switch to match the output imped-

ance of the amp to the speaker(s)

being used (2 or 4 ohms). For help in

deciding the total impedance of your

system, consult the chart below.

23. SPEAKER OUT: Two 1/4” phone

jacks and one Speakon

®

jack are pro-

vided for connecting speakers to the

unit. These jacks are wired in parallel.

When operating at or near full power,

the Speakon

®

jack is recommended

for use over the 1/4” jacks due to its

higher current handling capability.

NOTE: In some areas 1/4” speaker jacks

are not acceptable for use on amplifiers

with high output power levels. For this

reason the 1/4” jacks on your amplifier

may not be accessable – use the

Speakon

®

jack.

Cabinet Number of Total

Impedance

Cabinets Impedance

2 ohms 1 2 ohms

4 ohms 1 4 ohms

4 ohms 2 2 ohms

8 ohms 2 4 ohms

8 ohms 4 2 ohms

1 2 3 4 5 6 7 8

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