Fx_Loop - Mesa/Boogie Lonestar Owner's Manual

REAR_PANEL:_
FX_LOOP:__Series
The_LONE_STAR_handles outboard processing by providing an on-board patch point between the preamp
and power section. This loop is wired such that the dry signal is in series with the effected (wet) signal. The circuit also incorporates
NORMAL
First_set_sound_with
LOOP_bypassed._Then
set_SEND_&_OUTPUT_
MIN
to_50%_for_unity_gain.
With_LOOP_IN,_adjust_
SEND_LEVEL
SEND_to_match_FX.
Use_OUTPUT_for
RETURN_level_and
TUBE__LOCATIONS_
live_volume_control.
1_x_5U4___________4_x_6L6
Panel OUTPUT and SOLO controls with nothing connected to the Loop.
NOTE: The Front Panel OUTPUT and SOLO controls are both part of the Loop and therefore active only when the Effects Loop
is engaged. They are both part of the Return stage and will remain inactive as long as the loop bypass mini toggle is set to HARD_
BYPASS.
To connect your outboard processor(s) to the Effects Loop;
1.) Connect the SEND jack on the LONE_STAR_Rear Panel to your processor's INPUT using a high quality shielded cable of the
shortest possible length.
2.)_ Connect the RETURN_jack of the LONE_STAR to your processor's OUTPUT also using a high quality shielded cable of the short-
est possible length.
3.)_ Adjust the SEND_LEVEL control on the Rear Panel of the LONE_STAR_to achieve an adequate match on the INPUT level indicator
of your processor. Adjust the processor Output level stage (hopefully your processor has an OUTPUT LEVEL control) to match the
volume present before connecting the device(s) to the LONE_STAR. You can check this by simply removing both the cables from the
SEND and RETURN simultaneously.
4.)_ Use the Front Panel OUTPUT control to raise and lower the overall volume as it is essentially an Effects Return Stage volume
control.
NOTE: It is normal to experience some amount of change to the sound when using the EFFECTS_LOOP. Normally this is minimal
and most often appears as a subtle roll off in top end characteristics. This is a series loop and therefore the results you get using
it greatly depend upon the quality of the devices you insert into the loop. We strongly suggest taking your amplifier and trying any
processor before buying it to make sure it is compatible with the LONE_STAR. Normally, the more professional series lines of most
companies building outboard gear work well. However we have seen even so called pro stuff produce less than satisfactory results
in terms of tonal thievery.
NOTE: Engaging the EFFECTS_LOOP_circuitry adds a substantial amount of circuitry and two tubes and this additional circuit re-
verses the phase of the entire amp. This is no cause for alarm and if we hadn't told you of this, you probably would never have known.
Sonically there is no difference other than the incredibly subtle difference in the sound the circuit itself adds.
The only time you will ever need to consider this reversal of overall phase is if you ever run the LONE_STAR_in Stereo with another
amp (not another LONE_STAR_as it would be in phase with its Loop activated). In this case you would probably want to separate the
two amplifiers by at least a few feet if not on the other side of the stage.
(Continued)
M
LONE STAR
SEND_ RETURN
LOOP_
IN
HARD_BYPASS
a SEND_LEVEL_control allowing you to fine tune the output of the
preamp circuit to match the input sensitivity of your processor (or first
processor in a rack system). The EFFECTS_LOOP circuitry can be
completely removed from the signal path with the HARD_BYPASS/
LOOP_IN mini toggle. This removes all associated loop circuitry and
two tubes from the chain and ensures the purest signal path and
maximum sonic performance when outboard processing is not being
used. The SEND and RETURN_jacks incorporate switching elements
so that you may use the LOOP_IN selection and activate the Front
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