21 Headphones:
Connect stereo headphones rated for 8 to 32 ohms to this stereo jack.
Alternatively, you can connect two hi-fi speakers with 8 ohms each to this output.
Note: The signal routed to the headphones amp is tapped post power amp at the 8-ohm output
and is processed by the frequency compensation filter in the Balanced Line Output circuit.
The signals patched out through the headphones amp's two outputs are identical.
This signal is only available when the power amp is on. See section 22 and 26 to learn more about
using the
Power Soak
in combination with the
Balanced Line Out
and / or Headphones output.
HEADS UP! READ AND HEED:
Never insert anything but a stereo ¼ plug into this jack. One power
amp output will be short-circuited and may be destroyed if you plug in a mono connector!
22 Balanced Line Out Frequency Compensated:
The frequency-corrected, balanced Line output jack
(¼ stereo jack: tip and ring routes the balanced signal, shaft = Ground/Shield). This signal can be
routed directly to a mixing console or a recording unit. The line out is located post poweramp in
the signal chain, so ensure the poweramp is activated.
If you wish to run the amp without driving a speaker, the built-in
Power Soak
(26) can provide
the necessary load for the power amp. To do this, simply set its Selector to "Speaker Off."
Then you can run the amp without a speaker or cabinet connected.
Use the same setting when you wish to practice with headphones.
Never use the
Power Soak
with speakers connected to the 16-ohm outputs (jacks 24 and 25)!
Heads up: Make sure the balanced cord's shielding is grounded at one end only; that is, either at
the amp or at the mixer or recorder. Connecting two devices to the same ground (e. g. via the
mains ground) can cause a ground loop that you will recognize as audible humming!
You may find it necessary to sever the connection between the shielding and ground on one
of the stereo ¼" cord's two plugs.
A tip from the designer:
The Line Out's output level is influenced by the following factors: By the
input level (Gain), the Volume control settings in the Lead channel, to some degree by voicing
control settings, and by the Master volume level. First dial in the desired sound combination at
the front panel. Then adjust levels at FX devices or signal processors (if connected).
Use the respective device's input sensitivity or gain control for level adjustments.
You can also tap the line out signal at this jack using an unbalanced cord with a mono plug;
that is, with one wire carrying the signal and the shielding providing the grounding.
An internal resistor protects the second output against short-circuits.
(Note: This applies to the Line Output only!)
23 Poweramp Output 8 Ohms:
8 ohms speaker output jack. Connect an 8-ohm cabinet here.
The Power Soak circuit sits between this speaker output and the power amp. You'll find some
important info on this circuit in section 26, please read carefully before operating the
Power Soak
!
CAUTION:
The built-in
Power Soak
(26) may only be used in combination with an 8-ohm speaker
connected to jack 23!
24 Poweramp Output A -16 Ohms serial:
16-ohm speaker out, connected internally in series with
Output B (jack 25). Connect a 16-ohm cabinet here (Output A). Two 8-ohm speakers are connected
to Output A (jack 24) and Output B (jack 25).
CAUTION:
If you intend to use a 16-ohm cabinet only, make absolutely certain you connect it to
Output A (jack 24).
Output B (jack 25) is only enabled when a speaker is connected to Output A (jack 24).
The built-in
Power Soak
(26) does not work with the two 16-ohm speaker outs!
Never activate the
Power Soak
when a speaker is connected to output A (24) or speakers
are connected to the outputs A and B (jacks 24 and 25)!
Power Soak applications: see chapter 26 for more information.
25 Poweramp Output B - 16 Ohms serial:
This is an auxiliary output connected in series with Output A
(jack 24). This output is designed for one application for only—when you are driving a combination
of two 8-ohm cabinets/speakers. This output may only be used when an 8-ohm speaker is
connected to Output A (jack 24).
NOTE:
Never operate the amplifier without a sufficient load, otherwise you may damage or
destroy the power amp!
When set to "Speaker Off," the
Power Soak
provides an adequate load for the power amp.
Speaker/cabinet options:
You can connect one 8-ohm cabinet to the 8-Ohm Output (23) in combination with the Power
Soak circuit and select any setting, or connect one 16-ohm cab to Output A (24) or two 8-ohm cabs
to Output A and B (24 and 25) without the internal
Power Soak
. Selecting the "Full Power" setting
deactivates the
Power Soak
!
