Operator`s manual

55 Pre Out

56 Line Out

57, 58 Poweramp Output, 4 Ohms Parallel

59, 60 Poweramp Output, 8 Ohms Parallel

61 Poweramp Output, 16 Ohms

This is the SM Signature's preamp auxiliary out. It delivers a signal with almost the same

level and frequency response as the signal patched into the amp's input. A low-

impedance circuit, Pre Out is great for applications like addressing a guitar tuner. The

Pre Out signal is patched out to jack 55 even when Amp Mute is engaged. It can also

serve as an effect device send, whereby the amp's preamp (and EQ and gain stages) is

bypassed.

This jack taps into the power amp circuit to retrieve its signal. The frequency response

of the Line Out's and the Power Amp Output's signals are identical (-> and they are not

frequency-compensated). Use it to do things like drive another linear power amp or

frequency compensation filter, say to simulate a 4/12 cabinet and feed this signal to a

recording system or PA.

4 ohms speaker output jacks, internal connected parallel. For diverse cabinet options

8 ohms speaker output jacks, internal connected parallel. For diverse cabinet options

16 ohms speaker output jack. For diverse cabinet options

An electronic surveillance system constantly monitors if a plug is inserted into the

speaker outputs (57, 58), (59, 60) and (61). If a plug is not

inserted into one of these 5 jacks, the power amp is disabled and the Status LED flashes

in a distinctive pattern to alert you to this. However, the system cannot check if a

speaker is actually connected to the other end of the cord. That's your job.

1. One 4-ohm cabinet connected to a 4-ohm jack;

Summary: 4 Z, -> connected to 4-ohm output.

2. Two 8-ohm cabinets connected to the 4-ohm jacks;

Summary: 8Z+8Z,->connected to 4-ohm + 4-ohm output.

3. One 8-ohm cabinet connected to an 8-ohm jack;

Summary: 8 Z, -> connected to 8-ohm output.

4. Two 16-ohm cabinets connected to the 8-ohm jacks;

Summary: 16Z+16Z->connected to 8-ohm + 8-ohm output.

abinet options

abinet

options

4 ohms 8 ohms 16 ohms

IMPORTANT NOTE, please read and heed: Never operate the power amp without a

sufficient load, otherwise you may damage or destroy it!

Always check and verify that the amp's output impedance matches the connected

cabinets' impedance!

Cabinet options

see the chapter on page 22

see the chapter

on page 22