headway EDB-2 H.E Instruction Manual

Equaliser direct blender - 2 channel pre-amplifier & harmonic enhancer

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Equaliser Direct Blender – 2 Channel Pre-amplifier &

INSTRUCTION MANUAL

• Acoustic Pre-Amplifier, EQ's, D.I, Anti-Feedback,

Blender, Phantom & Harmonic Enhancer – For Pickups &

Microphones via Battery or D.C Powering

• SUPERIOR ACOUSTIC AMPLIFICATION & CONTROL

EDB-2 H.E

Harmonic Enhancer

New for 2020

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Page 1 EDB-2 H.E Equaliser Direct Blender – 2 Channel Pre-amplifier & Harmonic Enhancer INSTRUCTION MANUAL New for 2020 • Acoustic Pre-Amplifier, EQ’s, D.I, Anti-Feedback, Blender, Phantom & Harmonic Enhancer – For Pickups & Microphones via Battery or D.C Powering • SUPERIOR ACOUSTIC AMPLIFICATION & CONTROL...
Page 2 INSTRUCTION MANUAL EDB-2 H.E provides a beautifully voiced and practical solution to the diverse and critical needs for high quality acoustic musical instrument amplification. Suitable for stage and other signal processing e.g. recording Offering a huge range of gain to Interface signals weak or strong.
Page 3 Send & Return FX Loop ~ providing optimal connection of Effects & Tuner Mono, Stereo or Blended Outputs via Jack & Balanced D.I. XLR Tunable Notch Filter ~ defeating feedback & resonances on either channel 2 Way Phase Reverse & Earth Lift Switches ~ for phase imbalances, feedback &...
Page 4 Designed in UK - Made in EU Congratulations on your astute purchase! Please read this comprehensive manual carefully before first use of your EDB-2 H.E. Text is also available on our website: www.headwaymusicaudio.com...
Page 5 All can be achieved easily at hand. EDB-2 H.E can be On but muted on either channel, ready to re-start instantly and quietly. EDB-2 H.E is small enough for convenient...
Page 6 "IN" or "Return" sockets as this may cause damage . EDB-2 H.E WILL NOT operate or may become intermittent or damaged with use of any but the included Power Supply. Will likely to be damaged if rain or liquids are in contact CONTENTS OF EDB-2 H.E RETAIL PACKAGING BOX:...
Page 7 IV) PP3 Batteries x 2 fitted V) Instruction Manual, Guarantee Card & "Headway" Logo Stickers to apply to Cases etc MANUAL CONTENTS / INDEX The aims when compiling these contents were to broadly assist and inform the user to achieve the...
Page 8 14.0 AUXILIARY (AUX) IN 15.0 MASTER VOLUME 16.0 LINE OUT - JACK 17.0 D.I. OUT - XLR 18.0 POWERING - BATTERIES OR POWER SUPPLY 19.1 PHYSICAL SPECIFICATIONS 19.2 ELECTRICAL SPECIFICATIONS 20.0 TROUBLE SHOOTER CHECKLIST HEADWAY PRODUCTS/ POLICY OF CONTINUAL IMPROVEMENT...
Page 9 HEADWAY EDB-2 H.E FEATURES DIAGRAM TOP PANEL POWER ON/ STANDBY/ OFF LOW BATTERY LED Green LED Indicates Power ON Lights PURPLE when Slow Power on Time to Reduce Batteries are within Power on “Thump” hours of expiring PHASE HIGH HARMONICS Reverse Phase of CH.1...
Page 10 EDB-2 H.E Rear Panel EXT. POWER IN . / XLR LINE OUT 18v DC Adapter Input Connector Balanced Line Output XLR (CH1/CH2 or MIX) Use ONLY Headway EDB – PSU Does not accept Phantom Power From Mixer but EDB-2 H.E not damaged P.10...
Page 11 EDB-2 H.E Bottom Panel BELT CLIP/ MIC STAND Belt Clip (as shown) or BATTERY COVER Mic Stand Adapter 19/32” (PP3/6F22 x2) (15mm) BATTERY PANEL KNURLED SCREW P.11...
Page 12 Output Socket and with 48v Phantom from Mixer Headway EDB/M PSU (Optional) Mains AC-DC 18v Adapter Connector Types available for EDB-2 H.E See Electronic Specifications EDB/M PSU UK = United Kingdom/Eire/Singapore EDB/M PSU EU = Europe (Continental Mainland) EDB/M PSU NA = North America/S.
Page 13 Circuit breakers should be tested prior to use. We recommend that you also use Mains Noise Filters. Also Switch Off Power Supply Unit and other connected mains powered devices and unplug when EDB-2 H.E unit is not in use 1.1.4 PREVENTION OF SHOCKS & DAMAGE DO NOT expose the EDB-2 H.E, its optional Power Supply Unit or...
Page 14 Mic Stand or Belt Clip. Try not to block exits 1.1.8 MINIMISING PLUG IN NOISES. Pluging In and Out of EDB-2 H.E quietly is possible without a big clunk heard through the P.A Sound System is as follows: First engage Mute switch, plug Guitar Lead /Output cable into Guitar/Instrument Output Socket, then plug Guitar Lead Cable into combo amp, mixer or FX device etc.
Page 15 Any attempt to do so without prior permission would negate the 12 Month guarantee 1.3 CLEANING the EDB-2 H.E: Ensure EDB-2 H.E is unplugged before cleaning with a moist cloth. Do not allow moisture to enter unit and do not use chemical or abrasive cleaning products 1.4 PRODUCT LIABILITY: Headway Music Audio Ltd.
Page 16 Headway Music Audio Ltd. retains the right to make any such determinations according to its own assessment 1.7 WARRANTY/GUARANTEE TERMS: EDB-2 H.E...
Page 17 30 days of purchase you are not covered by the 12 Month Guarantee unless you are the end retail customer and have purchased direct from Headway Music Audio Ltd. If you have not registered it you retain your statutory rights under consumer law of the country in which you...
Page 18 2.0 EDB-2 H.E POWER ON / QUIETER SWITCH TO LIVE SOUND EDB-2 H.E is powered ON/OFF via Power Switch on top First ensure that any Instrument(s) are plugged in to their cables, the cable are plugged into the EDB-2 H.E and Mute Switches are ON.
Page 19 Active ( Powered ) Piezo Under Saddle Pickup Systems ( e.g. HE4/G.FEQ, or Snake3 pictured above, or forthcoming Headway "Superbug" - Low Impedance Output with Fixed EQ according to model ). These pickups are one of the last prone to feedback and body noises P.19...
Page 20 Pickups ( e.g. Headway HE4 Passive - Ultra High Impedance Output that requires a short, high quality lead into a High Impedance Input such as EDB-2 H.E iii) "The Band & Band2" pictured on Violin above. Headway‘s “The Band“ is a popular,easy fit, strap around Violin Contact Pickup with High Impedance Output.
Page 21 above.) These types of pickups are generally the least prone to feedback. SAM-1 carries pre-EQ and Harmonic Enhancer. Other active magnetic sound-hole pickup typically require a lot of EQ and may still sound mellow or boxy P.21...
Page 22 SA2 Active Under Saddle Pickup System with On Board 4 Band EQ & Vol. v) Active Piezo Contact Pickups ( e.g. forthcoming Headway “SuperBug” - Low Impedance Output ) These should be less prone to feedback than Passive Contact Pickups and a lot less prone than Microphones vi) Transducers or contact pickups : High Impedance ( e.g.
Page 23 True Condenser or Ribbon Microphones: Run optimally at 48v from EDB-2 H.E or most mixers via XLR connections, they deliver high quality amplification only at very low stage volume levels without problems...
Page 24 and check voltage requirements. BEWARE that 48v is likely to burn them out. xiii) Dynamic Microphones: Included the popular SM57 and may connect via XLR or Jack but do not require powering and are not damaged by Phantom Power. They are often tough and reliable but not terribly sensitive and have an uneven frequency response.
Page 25 A maximum of 10m ( 33') is recommended. For lengths above that, go to balanced cables, such as XLR outputs from Active D.I Boxes, e.g EDB-2 H.E 3.1.3 D.I. BALANCED LEADS: XLR Output leads running a Balanced signal greatly extend effective lead...
Page 26 Passive Pickups and some Dynamic and Electret Condenser Microphones. Offers Stereo (TRS) Socket configured for standard Mono Jack Plug Inputs. Alternatively Stereo Jack Plugs may be used with Phantom Power options. See: Sections 3.x,xi,xii, 8 and 9 Warning! - Plugging a live Power Amp would likely damage the unit and negate the Guarantee / Warranty 5.0 MUTE/ LIVE SWITCHES ON CH.1 &...
Page 27 You may wish to provide the highest gain levels from the devices in the chain with the lowest noise levels? EDB-2 H.E is a multi-function device which may be run on batteries, which has made the achievement of a low noise performance challenging, but this has been attained.
Page 28 ( potentiometers ), that hold their position Each dot marker equals 2.5dB (approx.) or +/- 40% EDB-2 H.E now offers two sets of 5 Band EQ by popular demand to offer maximum flexibility in shaping the sound of two sources via two channels for input from both Pickups and/or Microphones P.28...
Page 29 Violins and Mandolins often require treble cuts and low end cut below 200Hz, as offered on EDB-2 H.E Range Switch Violins also often benefit from Upper Mid cuts...
Page 30 6.3.2 BOOSTING EQ: The EDB-2 H.E offers active boost as well as cut on its EQ controls while some alternatives offer merely passive or cut functions on controls. However, boost functions can only work effectively if there is a significant amount of the frequency already there in order to be able to increase it.
Page 31 Allows control of the bass at the lowest frequency of the audio spectrum and will over-lap a little tonally with Low Mid control Controls the lowest frequency of the audio spectrum Cut Bass ACW to cut body handling noise, boomy sounds, externally generated hum, percussive clunks and low end feedback, as well as any instrument bias towards the low strings.
Page 32 Cut Low Mid to reduce body handling noise or over loudness on lower strings, muddiness and boomy sound Increase Low Mid CW to thicken tone. This is more popular on Nylon Strung Instruments or when playing finger-style or slide The Notch Filter and Violin "Range" Switch settings can all impinge on this area iii) HI MID CONTROL: +/- 12dB centred broadly, approximately @ 880Hz...
Page 33 2-3 strings N.B. Pro Audio or dictionary defined "Presence" as used by Headway should NOT be confused with the controls sometimes listed on Electric Guitar combo amps which use the term to denote high treble v) TREBLE CONTROL: +/- 13dB Centred broadly @ 10.5 kHz with shelving...
Page 34 Humbucker Magnetic Pickups and Flexible Piezo Film Contact Pickups will probably benefit from treble control increases in addition to turning H.E. Pot CW 7.0 HARMONIC ENHANCER H.E.A.T ~ HARMONIC ENHANCED ANALOGUE TECHNOLOGY: VIA ROTARY CONTROL POT & CHANNEL SELECTOR SWITCH - LOCATED ON TOP Generates an exceptional, high end, even, "harmonic sparkle", restoring "string zing", replacing natural tones lost from your instru-...
Page 35 CW as there would then be some- thing there for it to be able boost. Re-adjust Enhancer control to your taste Headway's SAM-1 Magnetic Pickup already incorporates Harmonic Enhancement Analogue Technology 8.0 CHANNEL 2 & MICROPHONE USE 8.1 INPUTS - LOCATED ON FRONT END...
Page 36 Headway Music Audio will NOT accept requests for information on other manufacturers wiring or specifications Headway Music Audio Ltd. will not be held liable for damage to other manufacturers pickup systems from Phantom Power The Ring Position suits more typical active pickup systems where wired for Phantom Power.
Page 37 Phantom to XLR . 11v is optimal for most Electret Condenser Microphones or Active Pickup Systems while 48v is optimal for true Condenser microphones Headway XLR 3 pin wiring is standard configuration. See Phantom Power / Electrical Specifications / Microphone Notes 8.1.3 ON/OFF MICROPHONE SWITCHING - LOCATED...
Page 38 Firstly, musical instruments are voiced to be heard from the outside whereas internally, body sounds usually offer excessive mid/bass boom Secondly, Mics are meant to be used in free air where sound waves travel mainly from the front of a diaphragm to the rear whereas inside instruments, sound reflections and partial cancellations from standing waves may cause phasing problems, causing a swirling effect and...
Page 39 from PA speakers, monitors, or backline combo amps and you may have to turn down the Mic volume to prevent feedback to such a low signal that it is effectively perceived as turned off POSITIONING: If you try to make the Mic sound a little less boomy and unnatural by pointing it out of the sound-hole you will be making it even more likely to pickup speaker cabinets and monitors which may make it...
Page 40 DPA: Headway recommends Miniature Instrument Microphones by DPA which are true Condensers(HyperCardiod) HE4: Headway's "HE4" range of Co-axial Piezo Cable Under Saddle pickups for acoustic instruments offer a more natural sound than flat pickups, sensing in 360 degrees (see website for full range) REVERB: A quality digital reverb (e.g.
Page 41 This is not to be confused with the XLR On/Off Switch on the top, which switches off the XLR circuitry EDB-2 H.E Phantom provision enables external powering of certain Active Pickup Systems and Blender systems on board instruments with no battery inside where wired to accept Phantom Power via RING (Stereo Jack Lead) or wired to accept Phantom Power to TIP.
Page 42 Mixer. This is a multi function device and not a simple, minimal D.I Box and the quality of components used in EDB-2 H.E have NOT been compromised to run LoFi & with low headroom at a low power consumption P.42...
Page 43 Phantom Power from most mixers, depending upon the voltage and milli-amps offered, as current draw is much lower, due to reduced functions Applying Phantom from a Mixer to EDB-2 H.E will NOT damage the unit 10. NOTCH FILTER CONTROLS / ANTI-FEEDBACK - LOCATED ON TOP Sometimes known as a "Sweep"...
Page 44 sockets. Control markers are only a rough guide to frequency and band width 10.1 NOTCH-Q CONTROL: Sharp to Broad Band Width Application Sets the bandwidth or spread of notch cut for the filter around the frequency setting of the NOTCH Control Rotary Pot.
Page 45 method for cutting highly intrusive or severely problematic sounds such as feedback, excessive booming & body handling noise, background rumble, honky upper mid range or muddy lower mids First try the Notch Filter on what seems to be the most problematic frequency spectrum leaving the other EQ controls at their centre position.
Page 46 These are are best countered by setting the NOTCH-Q width control fully ACW (as narrow as possible) Then, whilst listening carefully, slowly turn the NOTCH Frequency Control CW. Stop turning immediately when the unwanted noise has been located and removed All EQ and Parametric EQ in particular, should be used carefully and sparingly.
Page 47 controls, which overlap in effect, or further re-enforced by turning those controls down 11.1 RANGE SETTINGS i) Bass: Effectively "Full Range". Cuts below 40 Hz. This setting applies to all instruments producing bass such as Double Bass. You may also prefer this setting on Baritone Guitar, Cello and Mandocello ii) Guitar: Cuts bass frequencies gently below 80 Hz, which will still allows sufficient amplification through when...
Page 48 The "Range" Switch effect may be partly countered or modified by the use of the Bass & Low Mid controls If the "Range" Switch is set high at "Violin" it will thin out the sound instruments with lower ranges. See "Rock Acoustic"...
Page 49 Bouzouki ( Celtic "G" ) Octave Mandolin/ Oct. Mandola / Tenor Banjo = 100 Hz Tenor Guitar ( "A" ) = 110 Hz Viola / Tenor Mandola ( Middle "C" ) = 130 Hz 5 String Banjo ( Typical lowest note "D" ) = 147 Hz Violin/ Mandolin ( "G "...
Page 50 ensemble spectrum, similar to Cymbals and with the minimum possibility of feedback 11.4 TWO GUITAR MIX: This thinning EQ technique also enables the mixing together of two quite similar range Instruments so they separate audibly in a mix. To mix two guitars or an Acoustic Guitar and a Bouzouki for example, thinning out the sound of one of them will prevent them audibly clashing, blurring and cancelling out...
Page 51 EQ 15. MASTER VOLUME CONTROL - LOCATED ON TOP Rotary Pot Control sets the output level of the EDB-2 H.E pre amp which is fed to the LINE OUT and DI Out sockets...
Page 52 (balanced) or Mono Jack Plug may be used if convenient Passive Transformer type D.I's are designed for microphones only and can be problematic with pickups. They are better avoided. EDB-2 H.E ELIMINATES THE NEED TO RESORT TO INFERIOR D.I. BOXES. USE THE D.I. OUT FACILITY Uses Standard 3 pin XLR wiring.
Page 53 Batteries should be new and identical and their condition checked before use to avoid damage or injury. Dispose of leaking batteries responsibly! Battery removal is unnecessary whilst using a Headway DC Adapter ( external Power Supply Unit) or if EDB-2 P.53...
Page 54 EDB-2 H.E to power pickup systems, any "in-instrument" batteries should be removed to avoid injury or damage EDB-2 H.E is designed to be powered with Alkali, Lithium, Lithium Polymer Rechargeable or Ion Rechargeable. Type of battery, i.e Alkali, is more...
Page 55 Do not dispose of batteries in Landfill rubbish collections. Use battery collection schemes 18.3 LIFESPAN OF RE-CHARGEABLE BATTERIES IN EDB-2 H.E WHEN POWERED ON - based on recently improved battery manufacturer claims of specification when new: 1st Lithium Polymer Rechargeable PP3: at approx. 100 Hours 2nd Lithium Ion Rechargeable PP3: at approx.
Page 56 • Depth of Metal Box 30mm ( 1,18") • Depth including knobs and feet = 41mm ( 1,61") • Weight: 450g ( oz) • Dimensions of Retail Packaging complete with EDB-2 H.E = 195mm x 185 mm x 51mm (7,7" x 7,3" x 2" ) P.56...
Page 57 • Weight of Retail Packaging complete with EDB-2 H.E = g (. " ) • Mic Stand Bracket Connector: Female threaded bush on rear at 19/32" = 15mm approx.). DO NOT OVER TIGHTEN! 19.2 ELECTRICAL SPECIFICATIONS (Approx.) 19.2.1 CH.1 & CH.2 Jack Input Impedance = 6.8Meg Ohms / High Impedance Voicing is not negatively affected by Impedance setting...
Page 58 • Treble: @ 10.5 kHz +/- 12dB Shelf • Presence: @ 2.8 kHz +/- 7dB • Upper Mid: @ 880 Hz +/- 12dB • Low Mid: @ 590Hz +/- 13dB • Bass: measured @ 120 Hz +/- 12dB Shelf. • Bass if measured @ 45Hz +/- 16dB Shelf 19.2.3 "RANGE"...
Page 59 XLR IN/Out Wiring: Pin 1 = Earth/Ground, Pin 2 = +Signal (Plus), Pin 3 = - Signal (Minus) Noise Level (True RMS 20 Hz-20 kHz) At/@ 20 dB gain, EDB-2 H.E produces (-)90 dB. At /@10 dB gain, EDB—2 H.E produces -94 dB Distortion: THD See 6.1 Noise Notes 19.2.8 POWER SUPPLY UNIT - D.C Adapter...
Page 60 CHOSEN ACCORDING TO THE PRIMARY PURCHASERS OF EDB-2 H.E AS REFLECTS THE REQUIREMENTS OF THEIR TERRITORY. BEWARE - IF YOU PURCHASE EDB-2 H.E FROM A RETAIL SUPPLIER IN A DIFFERENT TERRITORY, YOU ARE LIKELY TO RECEIVE THE WRONG MAINS PLUG.
Page 61 Use only Headway Music Audio supplied 18v PSU: As per EDB-1, EDB-2, EDB-2 H.E, EDM-1, EDM-1 H.E, or forthcoming EDB-2 V.A.P, Headway Music Audio Ltd will not honour guarantees where an incorrect Power Supply has damaged a pre-amp 19.2.9 WEEE Regulations & Environmental Disposal:...
Page 62 • Check that "Range" control switch is set correctly to remove unwanted low frequency amplification • Use EQ controls to cut frequency of feedback • Covering or blocking the sound hole(s) of an instrument may often help give a few more dBs of level before the onset of feedback •...
Page 63 MABS, or Mobile Acoustic Baffles! • Check that a power amp output or headphone output is not plugged into EDB-2 H.E inputs 20.2 UNEVEN STRING AMPLIFICATION, HARSH or BOOMY SOUND? • Use "Notch Filter" or EQ controls to hone in on and cut troublesome frequencies •...
Page 64 • Check that a Power amp Output or Headphone Output is not plugged into EDB-2 H.E Inputs (or Outputs) • Check leads for cross leakage, excessive capacitance or resistance with an Electrical Meter or Cable Tester 20.4 INTERFERENCE: HUM, BUZZ, HISS, RADIO?
Page 65 • Keep your EDB-2 H.E and signal cables away from devices with strong magnetic fields, or mobile/cellular phones. These include large AC mains transformers, generators, lighting control systems and non earthed fluorescent lighting • Switch off equipment which is causing interference.
Page 66 • Excessive hiss will normally be produced by a faulty, poor quality, noisy device in the chain or by imbalances between different gear. To reduce hiss, identify gear responsible and drive it harder while reducing its own gain. • Turn off unused mixer channels •...
Page 67 Deltron & Schurter, Switchcraft, ST Professional & GH. Headway offers quality jack leads with appropriate lengths and specifications • If EDB-2 H.E has become overheated, turn off, cool it down and try turning on a little later to re- start, checking leads and connected devices. Try changing or removing batteries P.67...
Page 68 Trouble Shooting and Problem Prevention areas above and you still experience persistent problems and require help, please contact your dealer, a professional electronics technician or Headway Music Audio Ltd. where applicable and we will attempt to help where it applies to our products...
Page 69 EQ, Filtered & Harmonically Enhanced pre- amplifier and Other Pickup "additional channel blend" fa- cility Headway Existing Products include: HE4 ( e.g HE4/G.FEQ - Active Under Saddle Pickup for Steel Strung Acoustic Guitar). Also versions for Mandolin, Bouzouki, Nylon Strung Guitar, Ac Bass etc. Improved version introduced in 2019 Snake3 (e.g.
Page 70 Validate your Guarantee only by registering it online within 30 days of purchase. We recommend that to get the best possible sound, you use only Headway Pickups and good quality Microphones such as the excellent DPA Miniature Instrument Mics...
Page 71 Headway Music Audio Returns/Repairs - 2020 Glympton Post Office Glympton, Woodstock, Oxfordshire, OX20 1AL N.B. PLEASE CHECK WEBSITE FOR AMENDMENTS ON RETURNS ADDRESS www.headwaymusicaudio.com EDB-2 H.E: EAN: 7107718579859 Headway Music Audio Ltd VAT Tax number: GB 924 7711 16. EORI number: GB 924771116000 Company Reg.
Page 72 Lawrence Juber pictured with Headway EDB-2 Pre-amp mounted via integral Microphone Stand Bracket. INSERT NOTES P.72...
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Page 74 INSERT NOTES ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ………………………………………………...…………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ………………………………………………………………………. ………………………………………………………………………. P.74...
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