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Multi-function pre-amplifier with EQ, Blend & Direct Injection for acoustic amplification.
Highlights practical solutions, increased gain, extensive EQ, and versatile facilities for optimal sound.
Product designed in the UK and suitable for stage and signal processing.
Features Class "A" inputs and Pro Audio ICs for warmth, clarity, and low noise.
Includes 5-band EQ, tuneable notch filter, and versatile input impedance switching.
Offers versatile inputs, signal splitting, dual mixing, and phantom power.
Includes a range switch for Guitar, Bass, and Violin for tone shaping.
Details Aux IN, mounting options, extended headroom, and power supply flexibility.
Highlights sturdy steel housing and quality components for durability.
Recommends reading the manual carefully before switching on or plugging in the EDB-2.
Explains Power On/Off/Standby, Green LED, and Low Battery LED functions.
Details the 5 Band EQ, Notch Filter, and Q Width controls.
Covers Input Gain, Input Impedance, Phase, XLR Switch/Mic In, and Range Filter.
Describes the Master control for output level and the Mute function.
Details Aux In/iPod Input and Line Out connections on the side panel.
Covers CH.1 Jack In, Phantom Power, CH.2 Mono Jack In, CH.2 Mic/XLR In, and accessory options.
Explains DI/XLR Line Out, Ext. Power In, and Battery Panel access.
Essential safeguards for life and gear, including reading all warnings carefully.
Guidance on preventing electric shock via continuous mains earth connection.
Recommendations for using RCDs, surge protectors, and noise filters.
Warnings against exposure to liquids, electrical hazards, and improper handling.
Advice on venue selection and using government-approved radio mics.
Guidelines for cable placement, general handling, and switching off when not in use.
Techniques to reduce noise during connection and power-up sequences.
Outlines procedures for servicing, repairs, and product returns, including documentation.
Warns against disassembling the unit as it contains no user-serviceable parts.
Provides guidance on cleaning the EDB-2 using a dry cloth and avoiding liquids.
Details Headway Music Audio Ltd.'s responsibility for product damage, loss, and injury.
Specifies the EDB-2 guarantee validity, registration, and terms.
Defines what is covered and not covered by the Headway Music Audio Ltd. guarantee.
Emphasizes registering the guarantee within 30 days for coverage.
Provides recommendations for storing and transporting the EDB-2 safely.
Prohibits shipping batteries internationally via standard transit methods.
Explains the quieter switching method for powering on and standby.
Details the < 20 Meg Ohms input optimized for ultra high impedance passive, non-powered pickups.
Describes the < 5 Meg Ohms input optimized for passive under-saddle Ceramic Piezo pickups.
Details the < 50k Ohm input for active pickup systems and line level signals.
Explains how stereo jack inputs feed separate signals to both channels.
Describes the Mini-Jack socket for iPod connection, bypassing gain and EQ.
Explains the Gain knob operation (0-10, 0-32dB) and joint operation with Master.
Details how the 3-way switch applies EQ to channels or both.
Discusses the interaction between EQ bands and provides examples for thinning mid-range.
Offers guidance on EQ needs for various instruments like acoustic guitars, violins, and mandolins.
Explains the Bass control (-12dB @ 120Hz or -16dB @ 45Hz) for low frequency adjustment.
Details the Lo Mid control (+/- 13dB @ 590Hz) for mid-range adjustment.
Describes the Hi Mid control (+/- 12dB @ 880Hz) for upper mid-range adjustment.
Explains the Presence control (+/- 7dB @ 2.8kHz) for specific mid-range shaping.
Details the Treble control (+/- 13dB @ 10 kHz) for high frequency adjustment.
Discusses switching EQ to channels and using EQ with the notch filter.
Describes Channel 2 suitability for second pickup or mic, and its limitations for separate sources.
Explains the requirement for phantom power for condenser mics and cautions regarding switching.
Provides detailed notes on internal mic usage, placement, and potential issues.
Discusses limitations of internal mics at live volumes and potential issues with positioning.
Recommends external mics (Hyper Cardiod DPA 4099) and mic stands for improved performance.
Suggests using digital reverb as an alternative to mics for adding an impression of air.
Specifies impedance and compatible mic types for the XLR input.
Explains how stereo jack inputs are routed to channels 1 and 2.
Details the 3-way switch for phantom power to the CH.1 Jack Input for active systems.
Warns users to check wiring specifications before using phantom power.
Explains the 3-way switch for 18v Phantom Power to the CH.2 XLR input.
Describes the Mute/Live switch for output control and silent tuning.
Introduces the Notch Filter controls, including Q width and frequency.
Details how the Notch-Q knob adjusts the bandwidth of the notch filter.
Explains setting the center frequency (50Hz - 6kHz) for the notch filter.
Describes the slider switch for filter engagement and the pop-up for channel selection.
Provides strategies for using the notch filter to cut problematic frequencies like feedback and boom.
Details how to adjust notch filter controls for problematic midrange frequencies.
Explains setting the output level for Line Out, DI Out, and Aux In.
Describes the 3-way slider switch for high-pass filtering specific instrument types.
Outlines specific range settings for Guitar, 12 String, Resophonic, and Nylon guitars.
Specifies range settings for Violin, Mandolin, Ukulele, Cello, and Double Bass.
Details using PP3 (6F22) batteries, types, life, and recommendations.
Explains the blue LED indicating low battery voltage and unit failure.
Describes the 3-way switch for phase settings and its use for timing or feedback.
Lists dimensions, weight, and mic stand bracket connector details.
Details Channel 1 input impedance, gain control, and jack input features.
Covers Channel 2 input impedance, gain control, stereo jack input, and XLR gain.
Provides the input impedance for the Aux In/iPod In Mini-Jack socket.
Lists specifications for the Baxendall EQ and Notch Filter, including frequency and Q width.
Details the slope profile for the Range Switch's high-pass filter.
Details phantom power voltages and current limits for XLR and Jack inputs.
Lists nominal levels and impedance for Line Output (Jack) and DI Balanced Output (XLR).
Presents typical noise performance and Total Harmonic Distortion figures for channels.
Outlines the system frequency response characteristics for the line out.
Specifies requirements for the regulated switching AC/DC adapter and input plug connections.
Covers proper disposal of power supplies, batteries, and pre-amplifiers.
Introduces the checklist for identifying and solving common issues.
Provides initial steps to prevent feedback and manage room resonances.
Advises using notch filter, EQ, and phase reverse to cut feedback frequencies.
Suggests sound absorbent materials and blocking sound holes to manage feedback.
Discusses adjusting pickup/mic proportions to reduce feedback.
Recommends limiters or compressors to control peaks causing acoustic feedback.
Guides on checking pickup seating, placement, and magnetic pole piece adjustment.
Offers tips for mic positioning and magnetic pickup adjustment for better balance.
Covers checking batteries, gain/EQ levels, DI boxes, and cable integrity.
Advises keeping cables away from strong magnetic fields and using screened cables.
Suggests using GND LIFT, AC Mains Filters, and checking instrument earth connections.
Covers identifying noisy gear, using treble cut, and employing high-impedance/active pickups.
Recommends licensed radio mics and changing for conventional mics if interference occurs.
Checks connectors, power, gain, mute, batteries, and cable integrity for signal issues.
Advises working through troubleshooting pages before contacting support.