USER GUIDE Cuboid Loudspeakers 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 Cuboid loudspeakers All the speakers in the Cuboid range are full-range, 2-way loudspeakers. This means that they have a high frequency tweeter loaded onto a waveguide, 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 electronic cross-over network divides the signal between the high and low frequency drivers.
Cuboid Loudspeakers Loudspeakers Cuboid model Wall bracket Combined weight U bracket Combined weight Eyebolt fitting Cuboid 3 included 1.39kg (3.06lbs) N/A N/A M5 x 1 Cuboid 3TX included 1.77kg (3.9lbs) N/A N/A M5 x 1 Cuboid 5 included 2.28kg (5.02lbs) N/A N/A M5 x 1 Cuboid 5TX included 2.66kg (4.98lbs) N/A N/A M5 x 1 Cuboid 8 A 10.64kg (23.45lbs) A 13.0kg (28.66lbs) M8 x 16 Cuboid 10 B 17.26kg (38.05lbs) B 20.0kg (44.09lbs) M8 x 21 Cuboid 12 B 21.26kg (46.
Cuboid Loudspeakers Loudspeakers Wall mounting Cuboid 3, 3TX, 5 and 5TX – Portrait or landscape Mounting Cuboid 3, 3TX, 5 and 5TX in any orientation is easy thanks to the universal bracket that is supplied with the loudspeaker. The wall bracket is fixed to the mounting position by 4 screws as shown. Once the wall mounting part is fixed, attach the loudspeaker part of the bracket to the mounting points on the back of Cuboid 3, 3TX, 5 and 5TX.
Cuboid Loudspeakers Loudspeakers Wall mounting Cuboid 8, 10, 12 and 15 – 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. 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. USER GUIDE © 2022. Optimal Audio Group Ltd. (v2.
Cuboid Loudspeakers Loudspeakers Wall mounting Cuboid 8, 10, 12 and 15 – Portrait or landscape Secure the assembly with the fixed bolt in the lower hole in the bracket – this provides the pivot for angling the loudspeaker. Adjust the grub screw to fix the down-tilt angle. 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.
Cuboid Loudspeakers Loudspeakers Connecting Cuboid 3, 3TX, 5 and 5TX Cuboid 3, 3TX, 5 and 5TX loudspeakers are fitted with four pin push-in euroblock connectors. You can connect a cable from the SmartAmp or Zone speaker outputs to either of the +ve (positive) and -ve (negative) pins, and use the other pair to link on to the next loudspeaker.
Cuboid Loudspeakers Loudspeakers Ceiling mounting Cuboid 8, 10, 12 and 15 using U bracket The U brackets A, B, C and D are specifically designed for hanging Cuboid from a ceiling in landscape mode.
Cuboid Loudspeakers Loudspeakers Grille removal Grilles on Cuboid 8, 10, 12 and 15 loudspeakers are designed to be easy to remove to facilitate driver rotation. No screws are used to hold them in place; they are manufactured with a natural spring which holds them in place in slots in each side of the cabinets. The grilles have two or three gaps in the sides into which an appropriately sized flat‐bladed screwdriver can be inserted to assist in removal.
Cuboid Loudspeakers Loudspeakers Badge rotation When used in landscape rotate the Optimal Audio badge on the grille so that it matches the orientation of the speaker. The badge is spring loaded and very easy to rotate and can only be turned in fixed 90° increments so you will have no problem making sure that it is straight. The badge is easier to rotate if the grille is first removed (except Cuboid 3, 3TX, 5 and 5TX – grille is not removable).
Cuboid Loudspeakers Loudspeakers Cuboid coverage specifications Cuboid model Horizontal coverage Vertical coverage Cuboid 3 and 3TX 150˚ 100˚ Cuboid 5 and 5TX 130˚ 120˚ Cuboid 8 90˚ 50˚ Cuboid 10 90˚ 50˚ Cuboid 12 80˚ 50˚ Cuboid 15 80˚ 50˚ When installing 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 coverage specs are useful for informing this important decision.
Cuboid Loudspeakers Loudspeakers Rotating the horn (Cuboid 8 ,10 ,12 and 15) 1. 2. Remove horn Rotate horn 3. 4. Rotate cabinet Replace fixings USER GUIDE © 2022. Optimal Audio Group Ltd. (v2.
Cuboid Loudspeakers Loudspeakers Loudspeaker aiming and room coverage Sound Pressure Level decreases by 6dB for every doubling of distance from the source loudspeaker. This means that 96dB at 5m from a loudspeaker will reduce to 90dB at 10m – a significant drop in energy. IDEAL AIMING FOR A 50 DEGREE VERTICAL HORN Because of this level drop over distance, in larger rooms it’s worth considering additional loudspeakers to counter this effect, maintaining volume and intelligibility.
Cuboid Loudspeakers Loudspeakers Horizontal coverage It is important to consider the dispersion angles, or coverage, of each loudspeaker, and ensure that at the point at which you are at the extreme of the loudspeaker’s horizontal coverage angle, you are overlapping with that from another loudspeaker, to prevent “dead spots”, areas where the high frequency Cuboid 3 Cuboid 3 Cuboid 3 horizontal coverage USER GUIDE © 2022. Optimal Audio Group Ltd. (v2.
Cuboid Loudspeakers Loudspeakers Connecting Cuboid 8, 10, 12 and 15 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+ Cuboid 8, 10, 12 and 15 are fitted with two standard NL4 type connectors. These have two pairs of terminals. Cuboid uses only pins 1+ and 1-.
Cuboid Loudspeakers Loudspeakers Fitting weatherproof connector – Cuboid 3, 3TX, 5 and 5TX To use the weatherproof connection cover, firstly run the input and link output (where used) cables through the glands. Trim the cable ends to fit into the loudspeaker’s euroblock connector, without leaving excessive exposed conductor, as this can easily short the two cores together. Doing so will cause your amplifier to protect itself, and no sound will come from the loudspeaker.
Cuboid Loudspeakers Loudspeakers Transformer taps – Cuboid 3TX and 5TX 70V taps Cuboid model USER GUIDE © 2022. Optimal Audio Group Ltd. (v2.2) 100V taps Cuboid 3TX 2.5 3.75 5 7.5 5 7.5 10 15 Cuboid 5TX 2.5 3.75 5 7.5 5 7.
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. Deliver 200W of continuous power to Cuboid 8 and you will get 115dB(SPL) out of it if you are standing 1m away from it.
Cuboid Loudspeakers Loudspeakers Accessories Weatherproof Cover (black) CIPKIT-B Weatherproof cover for Cuboid 3, 3TX, 5 and 5TX (black) Weatherproof Cover (white) CIPKIT-W Weatherproof cover for Cuboid 3, 3TX, 5 and 5TX (white) 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
Cuboid Specifications Loudspeakers Loudspeakers Cuboid 3 Cuboid 3TX Cuboid 5 TYPE Cuboid 5TX Two-way, full range, passive 3” loudspeaker Two-way, full range, passive 3” loudspeaker with transformer Two-way, full range, passive, Two-way, full range, Two-way, full range, passive Two-way, full range, passive Two-way, full range, passive Two-way, full range, passive 5” loudspeaker passive, 5” loudspeaker with loudspeaker loudspeaker loudspeaker loudspeaker transformer FREQUENCY RESPONSE (with preset)
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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