Stereo Reverb 290 RO OM HA LL CH AM BE R PL AT E CA TH ED RA L GA TY PE TE D SM AL L ME DI UM LA RG E SIZ E/ DA RK GA TE SH AP E ME D BR IG HT CO LO R Operation Manual sh ort DE 0 CA l Y ong -6 LE FT -12 -18 RI GH T dry MI X we t IN PU T OU
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Table of Contents Safety and Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Introduction and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Setup Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Operation Selecting Reverbs . . . . . . . . . . . . . . .
Safety and Warranty Safety The symbols shown at left are internationally accepted symbols RISK OF ELECTRIC SHOCK that warn of potential hazards DO NOT OPEN A T T E N T I O N : RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR with electrical products. The W A R N I N G : TO REDUCE THE RISK OF FIRE OR ELECTRIC lightning flash with arrowpoint in SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE an equilateral triangle means that there are dangerous voltages present within the unit.
Introduction and Inspection Introduction We congratulate and thank you for your purchase of the dbx 290 Stereo Reverb. The 290 is a true stereo, dedicated reverb processor designed for the professional who needs high quality results without the challenges of complex programming. Whether used in the recording studio or in live sound situations, world class reverbs are just a button press away.
Setup Front Panel ROOM HALL CHAMBER PLATE CATHEDRAL GATED SMALL MEDIUM LARGE DARK MED BRIGHT 0 Stereo Reverb -6 290 -12 -18 short TYPE SIZE / GATE SHAPE COLOR 1 2 3 dry long wet DECAY LEFT RIGHT MIX INPUT OUTPUT 4 5 6 7 8 1) Type Buttons - Used to select one of six different reverb Types. The LED inside the selected button lights to indicate the current reverb Type being used.
Setup Back Panel INPUT LEFT/MONO OUTPUT RIGHT LEFT/MONO FOOTSWITCH MIDI IN RIGHT WARNING ¨ PROFESSIONAL PRODUCTS A HARMAN INTERNATIONAL COMPANY SALT LAKE CITY, UTAH MADE IN USA MODEL 290 STEREO REVERB 1 2 3 4 5 6 READ INSTRUCTIONS BEFORE INSTALLATION POWER 9VAC USE ONLY SPECIFIED POWER SUPPLY SERIAL 290-xxxxxx 7 8 1) Left/Mono Input - This is the audio input for the left channel of the 290. It can be used in either balanced (TRS) or unbalanced (TS) applications.
Setup Connections Correctly connecting audio and power to any signal processor is the most important step towards successful audio processing. Please follow these steps carefully for best results: 1. Turn off all equipment before making any connections 2. Mount the 290 in a rack (optional) The 290 requires only one standard rack space. It can be mounted above or below anything that doesn't generate excessive heat, since it requires no special ventilation.
Setup L/R Outputs ROOM HALL CHAMBER PLATE CATHEDRAL GATED SMALL MEDIUM LARGE DARK MED L/R Ins Channel Inputs BRIGHT 0 Stereo Reverb -6 290 -12 -18 short dry long DECAY TYPE LEFT RIGHT wet MIX INPUT OUTPUT COLOR SIZE / GATE SHAPE Synth Outs L/R Figure 1-2 L/R Outputs ROOM HALL CHAMBER PLATE CATHEDRAL GATED SMALL MEDIUM LARGE DARK MED Left Input BRIGHT 0 Stereo Reverb -6 -18 short SIZE / GATE SHAPE dry long DECAY TYPE LEFT RIGHT Effect Loop Send Effect Loop
Operation Selecting Reverbs The 290 has been designed to make reverb selection as quick and easy as possible. Reverbs are divided into four parts: • Type - Six standard reverbs are available in the 290: Room, Hall, Chamber, Plate, Cathedral, and Gated. These are described further in the Reverb Types Section (page 12). • Size/Shape - There are three possibilities available: Small, Medium, and Large. This parameter changes the overall size or volume (width x length x height) of the room.
Operation Bypass Mode To place the 290's reverb into Bypass mode, press and hold the [ROOM] and [CHAMBER] reverb Type buttons simultaneously. Bypass mode is indicated by the flashing LEDs of the currently selected Type/Size/Color buttons. Pressing any button will exit the Bypass mode (along with changing the setting if a new Type/Size/Color is selected). An external footswitch can also be used to enter or exit the Bypass mode.
Operation the gate, the noise can be eliminated when it is most offensive (when there is no program material to cover up the problem). The noise gate can be disabled by choosing level 0 (off). MIDI MIDI program changes can be received on any MIDI channel to select different reverb settings on the 290. The 290's MIDI channel is set by doing the following: • Simultaneously press and hold the [DARK] and [BRIGHT] Color buttons until their respective LEDs light.
Operation The list below shows how different reverb settings can be recalled using Program Changes. Program Change command -0- toggles the 290's Bypass mode status. Program changes -1- to -54- can also be used to exit the Bypass mode and select a new reverb setting (if so desired). After responding to a valid Program Change request, the 290 will reset the decay time to the 12 o'clock position (decay setting number 5) regardless of where the reverb decay control is set.
Reverb Types What is Reverb? Reverberation, or room ambience, occurs when acoustic energy is reflected off room surfaces, materials and objects. Using reverberation in recorded program material gives the listener a sense that the material is being performed in an actual room or hall. It is this similarity to actual acoustic spaces that makes reverberation a useful tool in recorded music. The 290 also uses early reflections to get a better emulation of the natural sound of a room.
Reverb Types the chamber's decay tends to get out of the way more quickly than the hall's, the chamber is ideal for vocals and/or instrumental parts that tend to get stacked during recording. Chambers are also very useful for more percussive, upbeat styles of music. Plate Plates are another attempt to artificially emulate natural ambiences that have instead become accepted for their own unique sound. Plate reverbs are made with large sheet of metal suspended in a box.
Specifications dbx 290 Stereo Reverb A/D Converter: 16 bit PCM D/A Converter: 18 bit PCM Sampling Frequency: 40 kHz DSP Section: Architecture: ..........................Static-Dynamic Instruction Set Computer (S-DISC™) Digital Signal Path Width: ....24 bits (144.5 dB) Internal Data Path Width: ....48 bits (289 dB) Dynamic Delay Memory: .....64k x 20 bits (1.68 seconds) Static Delay Memory: ...........256 24-bit registers (6.55 milliseconds) Data ALU Processing: ............10.0 MIPS Address ALU Processing:.
Specifications Function...
Manual Version: 2.