Axess Electronics UNZ1 Un-Buffer Fuzz Pedals User Manual
- June 3, 2024
- Axess Electronics
Table of Contents
Electronics UNZ1 Un-Buffer Fuzz Pedals
User Manual
UNZ1 Un-Buffer Fuzz Pedals
The UNZ1 Un-Buffer allows dearly loved fuzz pedals and other impedance [aka Z]
sensitive effect pedals to sound “right” when fed with a low Z signal; such as
from a buffer, wireless receiver, a guitar with active pickups, or another
effect pedal.
The benefits of directly connecting a guitar to a good input buffer, before
anything else, has been very well documented; buffers prevent the loading and
loss of (1) high end frequency response (2) signal level, and (3) low end
punch, due to cable capacitance and the imperfectly designed input
stage/circuitry of some pedals. These problems still occur even if all of the
pedals have true-bypass switching, which also adds inconsistent tone to the
equation — because every time a different pedal is turned on or off, the
guitar sees a different load, and it responds differently to each load. Every
additional pedal and every extra foot of cable in a rig, results in more and
more loss and loading, that only a buffer can prevent.
The UNZ1 Un-Buffer enables reaping the benefits of plugging a guitar directly
into a buffer and still being able to use a fuzz pedal or other impedance
sensitive effects, anywhere in the signal path that follows. The active
circuit converts a low impedance signal back to high impedance, restoring the
magical interaction between guitar and fuzz pedal, even though they are not
directly connected to one another.
Analog effect pedals, and guitars, have a dynamic and interdependent
relationship, and so when two devices are connected — they interact with one
another. The signal that passes between the two devices is a unique result of
the characteristics of the output and input circuit of those two devices. So,
you cannot substitute one device or the other, and expect the exact same
results, but you can get close! And the UNZ1 will get you there by making a
buffered and/or low-Z signal “look like” a guitar’s pickup, allowing for a
more authentic interaction with the input of fuzz pedals or other impedance
sensitive effects.
I/O DESCRIPTION
A. INPUT is a ¼”
TS (tip-sleeve) jack that accepts a low impedance signal from a buffer,
wireless receiver, a guitar with active pickups, or an effect pedal.
B. 9VDC is the external power supply jack and it accepts a standard 2.1mm
x 5.5mm male barrel plug from a 9VDC wall-wart power adapter or pedalboard
power supply with a NEGATIVE CENTER plug. Refer to the SPECIFICATIONS section
for additional information and higher operating voltages.
Do NOT connect any other DC Voltage or AC Voltage power supply to this jack,
other than that specified in this section and in the SPECIFICATIONS section.
Doing so will result in damage — voiding the warranty.
C. GREEN LED is the power LED and when it is lit up, it indicates the
UNZ1 Un-Buffer is receiving power.
D. OUTPUT is a ¼” TS (tip-sleeve) jack that provides a hi-Z version of
the INPUT jack signal, and is meant to be connected directly to the input of a
fuzz pedal or another impedance sensitive effect pedal.
SPECIFICATIONS
Input Impedance: 1MΩ
Output Impedance: Hi-Z
Operating Voltage: 9VDC
Power Jack: 2.1×5.5mm Barrel
Current Draw: Less than 100mA@9VDC
Dimensions (LxWxH): 3.65×1.52×1.25inch 92.7×38.6×31.8mm
Specifications are subject to change without notice.
CONNECTION DIAGRAMS
The following pages highlight some of the different ways the UNZ1 Un-Buffer
can be utilized. Hi-res PDFs of the individual diagrams are also available on
our website.
Follow us on Instagram and Twitter at @axsgtr and tag us using #axsgtr and
axesselectronics OR if you require assistance, contact us by email or via our
website, as follows;
info@axesselectronics.com
axesselectronics.com
UNZ1 UN-BUFFER & FUZZ PEDALS 101
The AXSGTR™ UNZ1 Un-Buffer allows dearly
loved Fuzz pedals and other impedance (Z ) sensitive effect pedals to sound
“right” when fed with a low Z signal; such as from a buffer, wireless
receiver, a guitar with active pickups, or another effect pedal. Line ® G90
image via linea.com. Line 6® is a registered trademark of
Yamaha Guitar Group, Inc. Yamaha Guitar Group, Inc. is not affiliated with,
and does not endorse, sponsor, or support AXSGTR™ and/or Mess Electronics™
FUZZ PEDAL ‘FIX’ FOR ACTIVE PICKUPS / BUFFERED GUITAR / WIRELESS 
The AXSGTR™ UNZ1 Un-Buffer allows dearly loved Fuzz pedals and
other impedance [ Z ] sensitive effect pedals to sound “right” when fed with a
low Z signal; such as from a buffer, wireless receiver, a guitar with active
pickups, or another effect pedal.
Buffer(ing) after the Fuzz is not mandatory, but is recommended.
Line 6® G90 image via line6.com. Line 6® is a registered trademark of Yamaha
Guitar Group, Inc. Yamaha Guitar Group, Inc. is not affiliated with, and does
not endorse, sponsor, or support AXSGTRTM and/or Axess ElectronicsTM
FUZZ PEDAL ‘FIX’ FOR MULTI-FX LOOP-SWITCHER + OTS1 PATCH-BOX
The AXSGTRT™ UNZ1 Un-Buffer allows
dearly loved Fuzz pedals and other impedance ( Z ) sensitive effect pedals to
sound ‘right’ when fed with a low Z signal; such as from a buffer, another
effect pedal, or a multi-fx loop switcher.
FUZZ PEDAL ‘FIX’ FOR ACTIVE PICKUPS OR WIRELESS + OTS1 PATCH-BOX WITH
INSTANT 2↔4 CABLE METHOD SWITCHING AND POST FUZZ BUFFER 
ALL PEDALS IN FRONT + DELAY: FX LOOP (4CM) / AFTER OD (2CM)
Press the OTS1 Patch-Box 4CM/2CM button to instantly reconfigure the
pedalboard signal path when using an amplifier with an effects loop, the 4CM
[IN], or one without, the 2CM [OUT].
Line 6® G90 image via line6.com. Line 6® is a registered trademark of Yamaha
Guitar Group, Inc. Yamaha Guitar Group, Inc. is not affiliated with, and does
not endorse, sponsor, or support AXSGTRTM and/or Axess ElectronicsTM
©2022 AXESS ElectronicsTM | AXSGTRTM
Rev. 2022-10-30
Documents / Resources
|
Axess Electronics UNZ1 Un-Buffer Fuzz
Pedals
[pdf] User Manual
UNZ1 Un-Buffer Fuzz Pedals, UNZ1 Un-Buffer, Fuzz Pedals, Pedals
---|---
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>