Origin Effects Cali76-TX User Manual

Key Features:
• 100% Class-A discrete signal path
• Ultra-fast “FET” response
• Attack & Release presets
• Studio-grade “discrete” preamplifier
• Rugged VU-style meter
• Low-noise electronics
• Optimised for guitar but also great for
processing recorded instruments
• 50 hrs from 9V cell in non transformer mode
• Traditional Through-Hole PCB
• 100% Class-A discrete output-amplifier
• Custom-designed transformer driving a pair
of outputs
• Unbalanced instrument output
• Balanced line output
• Ground-lift function
• Signal-pad for DI (balanced output only)
• Gain-switch adjusts level through
transformer circuitry, for increased saturation
• Voltage sensing circuitry shuts down
transformer circuitry when powered from a
battery or low-voltage supply
The Cali76 is a premium-quality, 1960s-style
FET compressor, inspired by the legendary
Urei 1176. The idea behind this design was to
bring the sonic properties of this revered
studio-classic into the scope of the average
guitar-geek…
The topology of the design was kept true to the
original, whilst the actual circuitry was
carefully condensed. In this way it has b een
possible to retain the much-loved dynamic-
response of the original, whilst at the same
time permitt in g a smaller, more stage-friendly
format!
Origin have also included a studio-grade 1960s-
style discrete preamp, to work as an interfac e
between your guitar and the compressor. The
preamp provides gain as well as the optimum
conditions for signal transfer.
The transformer output stage works in
conjunction with the pedal to provide t he user
with additional tone-options and connectivity.
A custom-designed transformer sits at the
heart of the output stage. The core-size and
material have been selected to contribute
harmonics when driven by the Class-A,
transistor-based, output amplifier.
The Cali76 is a great performance tool, but is
by by no means limited to this task. Recording
guitarists will find the un i t highly useful for
post-processing drums, bass and vocals.
Example Settings for Electric Guitar
"FET" BASED STUDIO-STYLE LIMITING AMPLIFIER
INSTRUCTIONS / INFORMATION
Figure 1: Useful Settings: (a) subtle compression; (b) percussive compression;
(c) spongy compression (try "popping" strings when soloing).

Origin Effects Cali76-TX Specifications

General

Type	Compressor
Input Impedance	1 MΩ
Output Impedance	1 kΩ
Maximum Gain	30dB
Technology	Analog
Bypass	True Bypass
Power Supply	9V DC, 2.1mm centre-negative
Controls	Attack, Release

Summary

Cali76-TX Overview and Features

Instructions and Information

General instructions and information regarding the Cali76-TX studio-style limiting amplifier.

Electric Guitar Settings

Useful Settings Examples

Illustrative examples of useful settings for electric guitar, including subtle, percussive, and spongy compression.

Input and Compression Controls

Input/Comp Control

Details on the input preamplifier and the INPUT/COMP control for varying gain and compression.

Attack and Release

Explanation of Attack and Release controls for dynamic response adjustment and creating strong dynamic effects.

Ratio Control

Information on the Ratio control for adjusting gain reduction amount and its effect on threshold.

Output and Bypass

Output Control

Description of the Output control for adjusting the pedal's output signal level.

Bypass Mode Selection

Internal selection of bypass modes (True Bypass or Buffered-Bypass) via jumpers.

Input Sensitivity and Power

Input Sensitivity Jumpers

Details on jumpers for adjusting input sensitivity and rotational resolution.

Power Requirements

Guidance on battery vs. supply operation, including voltage considerations and PSU recommendations.

Output Connections and Transformer Options

Output Connections

Explanation of the standard and transformer-enabled ultra-low-impedance outputs.

Transformer Options

Details on available transformer options: standard iron-core and optional Lundahl.

About Origin Effects