User`s manual

12. FX LOOP GND LIFT: Normally . The FX LOOP GND LIFT lets you suppress possible pops when
switching between 2 amps with using spillover effects like long delays or reverbs. This is most often
caused by a static voltage growing to a non grounded electronic signal path or switching between
from one audio ground to another. In almost any case that switch will solve the issue
13. BUFFER IN: BUFFER IN to drive the AMP INPUTS of the 444. Same as BUFFER IN at the front side,
but with priority to the front panels jack. Disconnected when front panels BUFFER IN is in use.
14. FEED THRU: direct ungrounded signal connection to the front panel FEED THRU jack only to
simplify the rack wiring.
15. SPEAKER CABINETS 1-4: Connect your speaker cabinets here. No matter which cabinets you
choose, from 1x12“ to 4x12“ with every impedance everything is possible, but consider not to
exceed the power handling of the speaker cabinet to avoid any damage to the speakers and/or the
amplifier. Use speaker cables only!
16. AMP OUTPUTS 1: Connect the loudspeaker/cabinet/amp output outputs of amplifier 1 here. This is
NOT an independent output but it corresponds to the number of the AMP INPUT 1 and the AMP1
SEND and RETURN jacks of the 444. Use speaker cables only!
17. UNBUFFERED IN: Input between the BUFFER IN and AMP INPUTS. This input bypasses the buffer,
when it's used, the BUFFER IN jacks are disconnected. We recommend this input when using
preceded buffer units or preamps.
18. AMP INPUTS 1-4: Connect the instrument inputs of your amps here. This is the most sensitive
connection setting up the 444, make sure to use high quality instrument cables.
User's Manual 444