11Presence
12DepthPunch
13PowerTubeMonitorV1
14PowerTubeMonitorV2
15PowerTubeMonitorV3
16PowerTubeMonitorV4
AnimportantnoteonthePowerTubeMonitor(P.T.M.)system:
This power amp voicing knob's setting determines the amount of high-end frequencies
in Channel 2 (
and
) in general and for Channel 1 (
and
)
when the Off / On CH 1 (10) button is engaged or
.
This power amp voicing knob's setting determines the amount of lo-end frequencies in
Channel 2 (
and
) in general and for Channel 1 (
and
)
when the Off / On CH 1 (10) button is engaged or
.
This LED lights up when the current flowing through the V1 power amp tube was too
high and the power tube monitor system has switched that tube off.
To learn more about this crucial protection feature, read the paragraph that follows
section 16. See the tube layout chart on page 23 to locate V1's position on the amp
chassis.
This LED lights up when the current flowing through the V2 power amp tube was too
high and the power tube monitor system has switched that tube off.
To learn more about this crucial protection feature, read the paragraph that follows
section 16. See the tube layout chart on page 23 to locate V2's position on the amp
chassis.
This LED lights up when the current flowing through the V3 power amp tube was too
high and the power tube monitor system has switched that tube off.
To learn more about this crucial protection feature,read the paragraph that follows
section 16. See the tube layout chart on page 23 to locate V3's position on the amp
chassis.
This LED lights up when the current flowing through the V4 power amp tube was too
high and the power tube monitor system has switched that tube off.
The next paragraph provides details on this crucial protection feature. See the tube
layout chart on page 23 to locate V4's position on the amp chassis.
The electronic power amp monitoring system constantly gauges the current flowing
through each power amp tube. If it rises to too high a level the system shuts down the
given tube.
This can occur when the amp is operated incorrectly (for example, if the impedance is
wrong due to an incorrect speaker load; see page 17 and 18 for permissible loads), at
extreme power spikes, or when a tube is defective.
Reset this electronic monitoring system by switching the standby switch off and on
again. When you press the standby switch to turn the amp on again, the system again
Lead
Hi Gain Lead
Clean
Crunch
On
Lead
Hi Gain Lead
Clean
Crunch
On
9
