Cuboid 3TX
Two-way, full range, passive, 3” loudspeaker with transformer
Features
- Discreet size, high performance
- Portrait or landscape mounting options
- Wall bracket included
- Max SPL 98dB (continuous) 104dB (peak)
- 130° horizontal x 120° vertical coverage
- IP54 for outdoor use with accessory terminal cover
- 8 ohm or 70/100V line operation
Bars/Restaurants & Cafes
Retail
Wedding Venues
Hotels
Education Facilities
Houses of Worship
Corporate Offices
Museums
Fitness Studios
Residential
Cuboid 3TX is a full range, two way, passive 3” loudspeaker designed to give exceptional sound quality in a very small form factor, for distributed applications with high quality background music and speech reproduction.
With its attractive design and included mounting hardware, Cuboid 3TX can be fixed in either portrait or landscape orientation for simple and flexible installation. A weatherproof terminal cover is available for outdoor use, bringing the rating to IP54.
Cuboid 3TX features a 3.5” low frequency driver and a 0.5” PEI dome high frequency driver mated to a shallow wave guide for consistent HF distribution.
Each Cuboid 3TX can be run on a series of 70 or 100V taps or at low impedance. Tap selection is via a rotary switch on the rear of the cabinet.
For enhanced bass performance, Cuboid 3TX can be teamed with Sub 10, and a SmartAmp or powered Zone will provide amplification, optimal sound settings as well as limiters to protect the drivers when playing at louder sound levels.
When coupled with Zone and WebApp, system set up and end user control is simple and intuitive, and can be further supplemented by ZonePad wall controllers.
Specifications
| TYPE | Two-way, full range, passive 3” loudspeaker with transformer |
| FREQUENCY RESPONSE (with preset) | 125Hz – 20kHz +/-3dB, -10dB @ 80Hz |
| DRIVERS | LF: 3.5”(90mm) coated paper, ferrite motor system. HF: 0.5” (12.5mm) PEI Diaphragm neodymium motor system |
| IP RATING | IP54 when used with accessory terminal cover |
| RATED POWER | 30 W (AES) 120W (peak) |
| NOMINAL IMPEDANCE | 8 Ohms |
| SENSITIVITY (1W/1m) | 84dB |
| MAXIMUM SPL | 98dB (cont) 104dB (peak) @ 8Ω |
| CROSSOVER | 3kHz |
| RECOMMENDED HIGH PASS FILTER | 24dB Per Octave @ 80 Hz |
| TRANSFORMER TAPS @ 70v | 2.5, 3.75, 5, 7.5W |
| TRANSFORMER TAPS @ 100v | 5, 7.5, 10, 15W |
| DISPERSION (-6dB) | 130°H x 120°V |
| ENCLOSURE | ABS |
| FINISH | Paint |
| PROTECTIVE GRILLE | Painted Aluminium |
| CONNECTORS | 4 pin Euroblock |
| PIN CONNECTIONS (INPUT) | Positive and negative in with link out terminals |
| FITTINGS | M4 mounting points for wall bracket |
| DIMENSIONS | (W)120mm x (H)190mm x (D)118mm (W)4.7” x (H)7.5” x (D)4.7” |
| WEIGHT | 1.26kg (2.8lb) |
Accessories
(available separately)
Subwoofer
Optimal Audio Cuboid 3TX FAQs
The Optimal Audio Cuboid 3TX is a 3-inch, 2-way passive loudspeaker with a built-in transformer, designed for exceptional sound quality in a very small form factor. Here are its key advantages:
- High-performance, compact design: Delivers high-quality audio with a maximum SPL (Sound Pressure Level) of 98dB (continuous) and 104dB (peak), all within a discreet 3-inch size.
- Transformer for constant voltage systems: The built-in transformer allows connection to 70V or 100V constant voltage distributed speaker systems, commonly used in commercial applications like restaurants, bars, and retail stores. This eliminates the need for separate amplifiers in each location.
- Wide coverage: Offers a 130° horizontal and 120° vertical coverage angle, ensuring good sound dispersion throughout the intended listening area.
- Mounting options: Allows for both portrait and landscape mounting for flexible installation based on your space and needs.
- Weatherproof option: An optional weatherproof terminal cover (sold separately) makes the Cuboid 3TX suitable for outdoor use with an IP54 rating for dust and water resistance.
The main difference lies in the built-in transformer. Here’s a breakdown:
- Cuboid 3: Designed for low impedance systems (typically 8 ohms) and requires a separate amplifier for operation.
- Cuboid 3TX: Designed for constant voltage systems (70V or 100V) and eliminates the need for a separate amplifier at each speaker location.
Due to its compact size, transformer integration, and weatherproof option, the Cuboid 3TX is suitable for various distributed audio applications, including:
- Background music and paging in commercial spaces: Restaurants, bars, retail stores, offices, waiting rooms, etc.
- Background music and announcements in public areas: Airports, train stations, shopping centres, educational facilities, etc.
- Outdoor applications with weatherproof option: Patios, verandas, pool areas (with appropriate cover).
Yes, while the Cuboid 3TX eliminates the need for a separate amplifier at each speaker, you will still need:
- Constant voltage amplifier: A power amplifier compatible with 70V or 100V distributed speaker systems, such as the Optimal Audio SmartAmp series.
- Speaker cables: To connect the Cuboid 3TX speakers to the amplifier.
