Rocktron Xpression - Manual (Page 4)

1. Introduction
Congratulations on your purchase of the Rocktron Xpression ™ guitar and bass effects processor! The Xpression is an
easy to use, yet professional, multi-effects processor where 100% of the processing power is dedicated to producing rich,
lush effects and EQ for guitar and bass. The Xpression is designed to maximize EFFECTS to be used with your favorite
preamp or amplifier, thus there are no distortion presets in the Xpression. 24-bit DSP processing via a Motorola DSP
engine provides a host of high quality digital effects, as well as a number of practical features for guitar and bass players.
• Selectable for Guitar and Bass - The Xpression can be used by guitar and bass players! A built-in Hi-
Pass filter section before the effects processing chain allows the user to choose one of three frequency
(80Hz, 160Hz and 240Hz) cutoff points. This allows lush effect mixing while maintaining everything
below the selected cutoff point to be left un-effected. The result is effects that leave the bottom end tight
and punchy.
Example - when 160Hz Hi-Pass is selected, all signal content above 160Hz is passed into the effect processing
chain. When the direct (original) signal is mixed back in with the effected signal using the Xpression’s mixer
section, the frequencies below 160Hz will remain virtually un-effected.
• Run up to 10 effects at once - The advanced processing power of the Xpression will allow you to run up
to 10 high quality effects at once.
• High quality digital effects include - Multi-voiced delay and chorus, multi-pitch shifting, tremolo,
flanger, reverb, phaser, auto-pan, rotating speaker, HUSH, compressor, speaker simulator, speaker model-
ing and mic position modeling
• Ultra transparent processing - the cleanest and most clear effects around. Rocktron’s direct signal
routing allows for mixing the direct signal with the effected signal to reached the desired effect.
• Pre-loaded with 128 professional presets custom designed for guitar and bass
• Preset Spillover allows for reverb and delays from a current preset to carry over into the next preset and
continue decaying when a new preset has been selected.
• Real Time Control of delay times and modulation rates through tap tempo and rate parameters. Delay
times and modulation rates can be changed instantly by tapping the tap switch on the front panel or
through the use of the Rocktron All Access or MIDI Mate footcontrollers.
• HUSH ® noise reduction operates only on incoming preamp noise, and does not affect the digital effects -
which are already ultra quiet.
• Rocktron’s SIMBiotic ™ EQ - is a custom designed EQ circuit providing the ultimate tool for tonal
shaping of your sounds. It includes four band full parametric EQ and complete mixing capabilities.
• Speaker Simulator - allows you to record direct using your favorite preamp or amplifier. You can also
use it to plug directly into a PA system (with your favorite preamp) - eliminating the need to carry a heavy
cabinet to the gig!
• Mic Position modeling - allows you simulate various speaker micing positions...ranging from placement
near the center of speaker cone out to the edge of the cone. An excellent recording and live tool!
For a thorough explanation of the Xpression and all its features, please read this manual carefully and keep it for future
reference. After removing the Xpression from the box, save all the packing materials in case it becomes necessary to ship the
unit.
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