SB10 User Manual Quested Monitoring Systems Ltd., Units 6-8 Kingsgate, Heathpark Industrial Estate, HONITON, Devon EX14 1YG England Tel: ++(0)1404.41500 Fax: ++(0)1404.44660 www.quested.
CONTENTS 1 Introduction 3 2 Safety Considerations 3 2.1 2.2 General Hearing damage 3 4 3 Unpacking 4 4 Installation 4 4.1 4.2 4.3 4 5 5 4.4 5 6 6-8 Operational Considerations 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 6 Positioning Stand Mounting Electrical Connection 4.3.1 Safety Earthing 4.3.2 Voltage Setting 4.3.
of Thank you for purchasing this Quested monitor. You can be certain that you have purchased one the finest monitors in the world. If you take time and care in positioning and aligning the system, you will appreciate why Quested monitors have a reputation for faithful reproduction covering the entire audible spectrum. They are professional monitors and therefore are not designed to flatter but to faithfully reproduce. Please take care to maintain the system and it will give you many years of service.
The wire, which is coloured brown, must be connected to the terminal in the plug which is marked with the letter ‘L’ or coloured red. NOTE: For certain countries the power cord will be supplied with an integral moulded plug to satisfy national safety standards. CAUTION: THIS UNIT C ONTAINS MAGNETIC COMPONENTS, WHICH CAN AFFECT ADJACENT SENSITIVE EQUIPMENT. 2.2 Heari ng damage This equipment can deliver sound pressure levels in excess of 100 dB.
4.2 Stand Mounting The SB10 has built-in mounting points that are located on two of the sides of the cabinet and are for use with the Quested stands (see diagram). The position of the mounting points are indicated on the line drawing on page 13 of this manual. When fixing the stand plate to the loudspeaker: • The bolt length must always penetrate at least 25 mm into the cabinet base; the minimum bolt length is 30 mm. • Always use locking washers and thread lock compound.
115V 230V Exploded view of PCB viewed from above showing the voltag e s election connectors with alternative pins for the 115V and 230V settings. 4.3.3 Fuse Setting It is very unlikely the fuse will fail during normal use but should this occur the situation must be approached with some caution. Check that the mains voltage setting is correct for your installation supply and that the original fuse was the correct rating. (See 9.
interconnecting cable. This is necessary to ensure proper compliance with European Standards for Electromagnetic Compatibility. Pin 1 carries no signal voltages or currents and is provided purely for screening purposes. It should not be connected to either pin 2 or pin 3.
Source Unbalanced Pho no 2 Core cable 5 OPERATIONAL C ONSIDERATIONS 5.1 Mains O n- Off Switchi ng and Level A rocker switch on the front panel provides On-Off switching. When powering up an audio system it is good practice to start at the source e.g. 1 st outboard equipment, 2 nd mixer, 3rd SB10, 4 th left and right monitors. When powering down the reverse order should be adopted. 5.2 5.3 Front Panel Indicators/Controls Test The test function is used to set the system up.
5.8 Polarity This controls the polarity of the sub bass. It is used in conjunction with the phase control to accurately match the sub bass with both the full range monitors and the environment they are being used in. Two green LED’s indicate when the sub bass polarity is both positive and negative. 5.9 Power On and off. 5.10 Rear Panel Controls Left input filter bypass A recessed switch on the rear panel allows the left input filters to be bypassed changing the left input to full range.
stable imaging and to maximize the area of the “sweet spot”, the axis of the left and right monitors should cross at a point approximately 40 cm behind the listening position. SB10 S6 S6 120cm 25o Speaker directed at a point approximately 40cm behind listening position 40cm Diagram shows a symetrical room layout. The system is set up centrally in the room, therefore the SB10 has been placed closer to the left hand monitors, which allows the SB10 to be away from the room's centre.
SB10 S6 S6 120cm 25o Speaker directed at a point approximately 40cm behind listening position 40cm Diagram shows asymetric room layout. The system is not set up centrally in the room, therefore the SB10 has been placed in the middle between the left and right monitors, but this still allows the SB10 to be away from the room's centre. Fig 2 Audio connections: The audio source is connected to the left and right inputs of the SB10 Controller.
A final alignment should be executed when the exact position of the monitoring has been determined and any furniture, soft furnishings and/or carpet are in place. To carry out an accurate alignment it is necessary to use professional test equipment, a real time spectrum analyzer would be the best option for most users. A spectrum analyzer (AL1), signal source (MR1), signal switching box (SB1) and measurement microphone (ML1) can be obtained from selected Quested distributors.
You now need to obtain maximum output of the speaker combination at the crossover point by means of the phase potentiometer and polarity switch. It is usually easier to adjust for maximum cancellation (lowest output) and then reverse the polarity switch to obtain maximum output. If there is a bump or lift in the response at the crossover point, roll off the bass response of the full range cabinet by using the LF Compensation switches on the left and right monitors.
FILTERS Left & right input summed to sub output Subsonic/High pass: -3dB @ 14Hz, 24dB/oct or -3dB @ 28Hz, 24dB/oct (set by internal jumper) Low Pass -3dB @ 40Hz to 135Hz, externally adjustable @ 24db /oct or full range on CH A Left right input to left & right output Ultra sonic -1dB @ 100k High pass -3dB @ 40Hz to 135Hz, externally adjustable @ 24db /oct or full range on CH A POWER AMPLIFIER THD > 210W rms continuous < 0.03% at levels up to 1dB below clip, 20Hz - 120Hz typ 0.
CL Standmountingpoint 69,50mm or2.75" 69,50mm or2.75" 127mm or5" 127mm or5" 290 CL 332,0mm 617.0mm 332.0mm Fixingpointsfor feet orspikes Fixingpointsforfeet orspikes 8 SB10 CONTROLLER LINE DRAWING 9 GUARANTEE The SB controll er electronics are guaranteed for 5 years from date of purchase. All other parts are guaranteed for 24 months.
10 APPENDIX 10.1 Accessori es Omnimount ™ plus fixings Quested S series stands (with unique coupling system) 10.2 10.3 Spares Description Part Number LS2529G 10" Bass Driver Fuses T3.15A Fuses T6.3A Q01-0038 L01-0010 L01-0018 Driver replacem ent procedure if it is necessary to replace the bass driver, place the cabinet on its rear and, using a 4 mm hex head driver, remove all of the bolts.
