USER GUIDE Cuboid Loudspeaker Loudspeakers >
Cuboid Loudspeakers Loudspeakers Congratulations on your choice of Optimal Audio for your latest sound system installation. The Optimal Audio range of compatible audio zoners, amplifiers and loudspeakers are designed to work together simply and effectively. Our quick start guides will take you through the simple connection and set up procedure. Cuboid consists of a series of fullrange, high-powered loudspeakers designed to deliver great sound at an affordable price.
Cuboid Loudspeakers Loudspeakers Rotatable high frequency horn, low frequency driver, bass reflex port, M8 fixings Cuboid 8, 10, 12 and 15 are all passive, full-range, 2-way loudspeakers. This means that they have a high frequency driver loaded on to a horn, giving increased efficiency and directivity, and a low-frequency cone driver. The loudspeaker is fed with a full-range output from an amplifier and an internal cross-over network divides the signal between the high and low frequency drivers.
Cuboid Loudspeakers Loudspeakers Cuboid Model Wall bracket Combined weight U Bracket Eyebolt fitting Cuboid 8 A 10.64kg A 13.0kg M8 x 16 Cuboid 10 B 17.26kg B 20.0kg M8 x 21 Cuboid 12 B 21.26kg C 25.5kg M8 x 21 Cuboid 15 C 31.35kg D 35.0kg M8 x 19 Cuboid can be mounted on a wall in either portrait or landscape mode using the appropriate wall bracket or suspended from a ceiling with the appropriate U bracket.
Cuboid Loudspeakers Loudspeakers Wall Mounting – Portrait or Landscape Once loudspeaker position has been decided, affix wall section of Wall Bracket (A,B or C depending on Cuboid model) securely to a suitable wall mounting point Remove M8 fixing bolts from the rear of the loudspeaker cabinet Position loudspeaker cabinet section of Wall Bracket over the four M8 mounting points and secure with the four bolts from the back of the cabinet Optional Wall Bracket mounting positions enable greater down-tilt, u
Cuboid Loudspeakers Loudspeakers Lift loudspeaker into position making sure that the two halves of Wall Bracket line up – the adjustable bolt sits into the two ‘U shaped’ cups in the wall section of the bracket Horizontal fixings Horizontal Fixings Secure the assembly with the fixed bolt in the lower hole in the bracket – this provides the pivot for angling the loudspeaker.
Cuboid Loudspeakers Loudspeakers Speaker positioning and aiming Cuboid Model Cuboid 8 Cuboid 10 Cuboid 12 Cuboid 15 Horizontal 90° 90° 80° 80° When installing horn loaded loudspeakers, it’s worth taking a moment to understand how the loudspeaker projects sound and how to get the best coverage in your venue by careful aiming. The above table lists the coverage angles of the high-frequency horns in the Cuboid range.
Cuboid Loudspeakers Loudspeakers Rotating the horn 1. 2. Remove horn Rotate horn 3. 4. Rotate cabinet Replace fixings USER GUIDE Introduction © 2021. Optimal Audio Group Ltd. (v1.
Cuboid Loudspeakers Loudspeakers Ceiling mounting using the U bracket Loudspeaker aiming IDEAL AIMING FOR A 50 DEGREE VERTICAL HORN AGE F COVER 25 OINT O HEST P FURT IMED AT -6dB REDUCED ENERGY ON CEILING deg XIS A HORN A -6dB AIMED AT NEAREST POINT OF COVERAGE The U brackets A,B,C & D are specifically designed for hanging Cuboid from a ceiling in landscape mode.
Cuboid Loudspeakers Loudspeakers IN THIS EXAMPLE THE ROOM IS TOO BIG FOR ONE SPEAKER TO BE ABLE TO COVER RIGHT TO THE BACK. A SECOND SPEAKER IS ADDED AT THE POINT WHERE THE FIRST AND SECOND CROSS OVER. THE SECOND IS DELAYED BACK TO THE FIRST USING THE FORMULA: distance/speed of sound (334m/s @ 20 degrees C) IN THIS CASE: 11.4/334 = 0.033 seconds, 33 milliseconds 11.
Cuboid Loudspeakers Loudspeakers Connecting Up Cuboid connector viewed from rear 1+ When wiring loudspeaker cables be careful to observe the correct polarity of the cable and connector at both ends. 1- 2- Cuboid uses these terminals 2+ All Cuboid loudspeakers are fitted with two standard NL4 type connectors. These have two pairs of terminals. 2+ and 2- are not connected and are not linked through. Cuboid uses only pins 1+ and 1-.
Cuboid Loudspeakers Loudspeakers Matching Speakers and Amplifiers To get the best from your loudspeakers, it’s important to make sure the amplifier you are using is up to the job. Several factors have to be considered, and it’s worth clarifying what they mean and how they affect the performance of a loudspeaker. So, give a Cuboid 8 200W of continuous power and you will get 115dB(SPL) out of it if you are standing 1m away from it.
Cuboid Loudspeakers Loudspeakers Accessories Wall Bracket A (Black) WB1-B Wall bracket for Cuboid 8 (Black) Wall Bracket B (Black) WB2-B Wall bracket for Cuboid 10 & 12 (Black) Wall Bracket C (Black) WB3-B Wall bracket for Cuboid 15 (Black) U Bracket A (Black) UB1-B U Bracket for Cuboid 8 (Black) U Bracket B (Black) UB2-B U Bracket for Cuboid 10 (Black) U Bracket C (Black) UB3-B U Bracket for Cuboid 12 (Black) U Bracket D (Black) UB4-B U Bracket for Cuboid 15 (Black) USER GUIDE Introdu
Cuboid Loudspeakers Loudspeakers Specifications Cuboid 8 Cuboid 10 Cuboid 12 Cuboid 15 TYPE Two-way, full range, passive loudspeaker Two-way, full range, passive loudspeaker Two-way, full range, passive loudspeaker Two-way, full range, passive loudspeaker FREQUENCY RESPONSE (with preset) 90Hz - 18kHz ± 3dB -10dB @62Hz 65Hz - 20kHz ± 3dB -10dB @49Hz 62Hz - 20kHz ± 3dB -10dB @47Hz 58Hz - 18kHz ± 3dB -10dB @40Hz DRIVERS LF: 8” (200mm), ferrite motor system HF: 1” (25mm) exit/1” (25mm) voice coil
Cuboid Loudspeakers Loudspeakers Important Safety Instructions WARNING! DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE This symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6.
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