The Boulder Manual
Contents
1. THE BOULDER PROFESSIONAL 3 WAY ACTIVE STUDIO MONITOR Owner s manual X CE RoHS THE BOULDER User Manual l v0312 PUNT Y LTD THANK YOU Thank you for buying the Unity Audio THE BOULDER one of the most accurate 3 way active studio monitors available We wish you many years of productive trouble free and pleasurable use from THE BOULDER Please read this user manual and keep in a safe place Unity Audio THE BOULDER User Manual 2 v0312 IMPORTANT SAFETY INSTRUCTIONS l 2 3 4 5 6 7 8 e 10 11 12 13 14 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with dry cloth Do not block any ventilation openings Install in accordance with the manufacturer s instructions Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong are provided for2. and connectivity of THE BOULDER 10 Voltage setting label An arrow on this label points towards the voltage setting of THE BOULDER The voltage is factory set see Important Safety Instructions p 3 and Power p 5 THE BOULDER User Manual qd v0312 dIE unio LT D Response curves Frequency Response 3dB 39Hz 30kHz Frequency response and HF Boost amp Cut Response The central red line shows THE BOULDER s response when the monitor is flat 1 e no boost or cut The green line shows the response when the HF is boosted and the blue line shows the response when the HF is cut Sound Pressure Level 1 3 Octave Smoothing 90 80 Magnitude dBSPL 70 60 10k 1k Frequency Hz Green curve 2 5dB boost Red OdB flat Blue 2 5dB cut Frequency response and MF Boost amp Cut Response The central purple line shows THE BOULDER s response when the monitor is flat 1 e no boost or cut The upper purple line shows the response when the MF is boosted and the red line shows the response when the MF is cut Frequency Response 1 3 Octave Smoothing o0 23 o 2 10 O e 20 30 10 100 1K 10k Frequency Hz Upper purple curve 2 5dB boost Central purple OdB flat Red 2 5dB cut THE BOULDER User Manual 8 v0312 Specifications General specifications TES oe tces ps stiec E 3 way active monitor with coaxial midrange tweeter Crossover Frequencies 694Hz 3 5kHz Fre
3. es should be taken to remove any acoustic anomalies caused by the room The following diagram is a guide for optimum 5 1 surround speaker placement L E R Warranty This product carries a 1 year warranty If you suspect a problem please contact your dealer who will advise you on the appropriate action Any unauthorised repairs or modifications to this product will nullify the warranty THE BOULDER User Manual 6 v0312 aED urio LT D Rear panel CLASS 1 AUDIO PRODUCT y WARNING THIS EQUIPMENT MUST BE EARTHED 1 Mid cut boost switch 3 position mid range frequency 694Hz 3 5kHz gain switch up 2 5dB cut centre off down 2 5dB boost 2 HF 10kHz Shelf switch 3 position high frequency shelf switch up 2 5dB cut centre off down 2 5dB boost 3 Gain control knob This control knob allows adjustment of the input signal at the XLR input Turning the knob anti clockwise lowers the volume turning the knob clockwise increases the volume 4 Balanced XLR input pin 1 ground pin 2 hot pin 3 cold 5 LED power indicator on off 6 Power switch on off see Important Safety Instructions p 3 and Power p 5 7 Fuse holder see Important Safety Instructions p 3 Power and Fuse Replacement p 5 8 IEC mains input socket see Important Safety Instructions p 3 and Power p 5 9 Rear panel guide this panel provides important information about control
4. ible fire risk To avoid electric shock remove power cord before replacing fuse THE BOULDER User Manual 3 v0312 CAUTION Humidity For a superior and consistent sonic performance considerable care has been taken in the manufacture of THE BOULDER to ensure that the cabinet is acoustically sealed However as with any electrical equipment should you move THE BOULDER from a cold environment into a warm room condensation may form on the components inside To avoid damaging the product please allow it to reach room temperature before operation Unpacking amp handling Care should be taken when removing THE BOULDER from its carton The speaker cones diaphragm and surround are delicate components Do not touch at any time Listening levels THE BOULDER 1s capable of sound pressure levels SPL s in excess of 110dB Avoid listening at sustained high levels as this may cause e permanent hearing damage e the speaker to overheat leading to a fire hazard THE BOULDER User Manual 4 v0312 dIE urio LT D Running in Speaker drivers contain moving parts It is recognised to be good practice to run in new speakers prior to normal use for improved bass extension sweeter highs and a smoother performance overall This process is also referred to as breaking in or burning in We recommend a run in period of at least 12 hours or overnight ideally longer Having observed the warnings on page 3 of the manual connec
5. ositioning THE BOULDER drive unit contains powerful magnets Please do not position THE BOULDER within metre of a cathode ray tube CRT television or display monitor For best results THE BOULDER should be placed on a sturdy speaker stand such as Unity Audio s THE MONOLITH If left untreated room acoustics room modes can seriously affect the accuracy of audio reproduction especially at lower frequencies The following guidance is here to help minimise the effects of any untreated room acoustic problems THE BOULDER is designed as a near midfield studio monitor and should therefore be positioned ideally between and 3 metres from the listener The studio monitor s should be placed upright and directed toward the listener A stereo pair of BOULDER monitors should be equidistant from the listener and between 1 5 and 1 8 metres apart placed upright and directed toward the listener with the coaxial midrange tweeter at around ear level Small adjustments to the speaker placement and or their angle to the listener and or the listener s seating position will help the listener locate the audio sweet spot i e a strong central audio image Each monitor should also be equidistant from side walls and not too close to any wall or other reflective surface or the corners of the room Again since room modes can influence what you hear in many ways some experimentation may be needed to find the optimum speaker placement Nevertheless measur
6. quency Response 0008 3dB 39Hz 30kHz Maximum Output Level 113 dB 1m on axis Mid Cut Boost 2 5dB HF EQ Shelf 10kHz 2 5dB Enclosure Closed cabinet design 30mm Corian front baffle 18mm grey Baltic birch 9 ply cabinet Speaker unit LF 2 x 7 180mm woofer 4Q ME HF Coaxial 5 midrange and 50kHz folded ribbon tweeter 4Q Amplifier unit 4 x bespoke true class A B 100 watt Esoteric Audio Research discrete amplifiers one per driver Total Output Power ccccceeeeeee 200W Input Sensitivity Impedance 4 dB 20 kQ Balanced XLR Level control Power Power Indicator seinnaa LED Power Requirement EUO oeeie 220 240v AC 50 Hz USA amp Canada 110 120v AC 60 Hz d AiO A EET E 100v AC 50 60 Hz ORS sips ea EN 220 240v AC 50 Hz UNS asi accent E ema veseesecneee 1 25A 230v 2 5A 110v 2 5A 100v 20mm type Option Unity Audio THE MONOLITH speaker stand Dimensions 23kg each 368mm deep x 256 mm wide x 549mm high Specifications and appearance are subject to change without notice Unity Audio Limited Unity Audio Limited Elms Barn Baythorne End Halstead Essex CO9 4AB www unityaudio co uk sales unityaudio co uk tel 44 0 1 440 785 843 fax 44 0 1 440 785 845 THE BOULDER User Manual 9 v0312
7. t an audio playback device CD MP3 player etc to THE BOULDER speaker s Place the playback device in loop mode and play dynamic music through THE BOULDERS at a moderate level enough to drive move the speaker diaphragm a reasonable amount Power THE BOULDER voltage is factory set Options are e 220 240v e 110 110v 100v An arrow on the voltage setting label see p 6 indicates the voltage setting of THE BOULDER IMPORTANT ensure THE BOULDER is set to the correct voltage for your region Voltage settings must be set by the factory and cannot be switched by the user If THE BOULDER is set to the incorrect voltage for your region contact Unity Audio DO NOT power it up Fuse replacement The fuse is located on the rear of THE BOULDER in the fuse holder between the power switch and IEC mains input socket Image A Remove the mains lead Prise out the fuse holder by placing a small slotted screwdriver into the slot located on the underside and near the front of the fuse holder Image B Carefully but firmly pull the fuse holder outwards Replace the fuse see Specifications p 9 for fuse type Push the fuse holder back into position Fuse holder Place screwdriver here Image A showing fuse holder location Image B showing slot on underside of fuse holder Cabinet care Clean the cabinet with a soft lint free cloth The use of solvents or abrasive cleaners should be avoided THE BOULDER User Manual 5 v0312 P
8. your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Only use attachments accessories specified by the manufacturer Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over Unplug this apparatus during lightning storms or when unused for long periods of time Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped WARNING Prior to power up for the first time ensure that the THE BOULDER is set to the correct voltage see Power p 5 Prior to power up during day to day operation ensure that THE BOULDER s gain level control knob is set to minimum see p 7 and or that the audio source level from the mixing console digital audio workstation etc is set to zero Failure to follow these instructions may result in damage to your hearing and THE BOULDER and lead to a poss
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