IDEA BASSO21-A 21" Active Bass Reflex Subwoofer

Overview

The BASSO Series models allow users to select the most suitable subwoofer for any given situation from a family of products sharing common finish, design solutions, performance philosophy, and transport/rigging accessories. The BASSO21-A is a high-density, direct-radiating subwoofer that delivers the genuine 21-inch deep sound from a compact, rugged cabinet. It is constructed with high-quality 18 mm birch plywood, a 2 mm steel grille, and IDEA's durable Aquaforce weather-resistant coating.

This powerful, multipurpose subwoofer produces a clean, linear audio signal that naturally couples with large two-way loudspeakers like the LUA15, EXO15, and EXO18, as well as flown or stacked EVO line-arrays in larger systems. The BASSO21-A has been carefully tuned to deliver optimal performance from its 21-inch premium quality transducer, thanks to four symmetrical ports that allow for extremely linear woofer excursion with minimal distortion and high response in regions where sound is felt rather than heard.

Its extended frequency response reaches 29 Hz, adding "Infra" capabilities to the BASSO21-A for large systems and applications requiring sub-sonic qualities. The BASSO21-A can also be supplied with BASSO rigging structures (on demand), enabling stacked and flown configurations.

Image description: A large, black, rectangular subwoofer cabinet is shown. It features a prominent front grille and two circular ports. The IDEA logo is visible on the cabinet.

Features

• Bass reflex design
• 3.2 kW Class-D integrated power module
• 24-bit 48kHz DSP
• 4 selectable presets
• Premium European High Efficiency custom IDEA Transducer
• Neutrik® PowerCON and XLR connectors
• Rugged and durable 18 mm birch plywood construction and finish
• Durable Aquaforce paint, available in standard textured black or white
• Turn-key Factory Amplifier/DSP dedicated configurations
• 36 mm pole cup and four integrated handles
• Compatible rigging accessories (optional) for stacked / flown configurations with EVO Line-Array systems

Applications

• High SPL A/V, portable professional sound reinforcement and touring
• Main or distributed subwoofer system in Pubs, Lounges, Bars and clubs
• Infra extension to other BASSO series subwoofers
• Broadcast Studios and Screening rooms

Technical Data

Technical Drawings

The technical drawings provide visual representations of the BASSO21-A subwoofer. These include:

• Front View: Shows the speaker cone, grille, and port configuration. Dimensions are indicated as 600 mm width and 600 mm height.
• Rear View: Displays the rear panel with connectors and controls. Dimensions are indicated as 600 mm width and 950 mm depth.
• Side View: Illustrates the side profile of the cabinet, with dimensions indicated as 600 mm height and 950 mm depth.

The rear control panel features:

• INPUT, GAIN, STATUS, SIGNAL, CLIP/TEMP, LINK indicators.
• PRESET SELECT button.
• ACTIVE PRESET indicator.
• LOW PASS CUT (Hz) selector with options for 80, 100, 120, and 150 Hz.

Power and Manufacturing Information:

• Power supply: Universal regulated switch mode.
• Nominal power requirement: 100-240 V 50-60 Hz.
• Current consumption: 1 A @ 220 V.
• Product of Europe. Made in Spain. Designed, engineered, and manufactured by IDEA in Cedeira (Galicia).

Safety Warnings

• Read this document thoroughly, follow all safety warnings, and keep it for future reference.
• The exclamation mark [warning-symbol] inside a triangle indicates that any repair and component replacement operations must be done by qualified and authorized personnel.
• No user-serviceable parts inside.
• Only use accessories tested and approved by IDEA and supplied by the manufacturer or an authorized dealer.
• Installations, rigging, and suspension operations must be done by qualified personnel.
• This is a Class I device. Do not remove the mains connector ground.
• Only use accessories specified by IDEA, complying with maximum load specifications and following local safety regulations.
• Read the specifications and connection instructions before proceeding to connect the system and use only cabling supplied or recommended by IDEA. Connection of the system should be done by qualified personnel.
• Professional sound reinforcement systems can deliver high SPL levels that may result in hearing damage. Do not stand close to the system while in use.
• Loudspeakers produce a magnetic field even when not in use or disconnected. Do not place or expose loudspeakers to any device sensitive to magnetic fields, such as television monitors or data storage magnetic material.
• Keep the equipment in the safe working temperature range [0°–45°] at all times.
• Disconnect the equipment during lightning storms and when it is not to be used for a long time.
• Do not expose this device to rain or moisture.
• Do not place any objects containing liquids, such as bottles or glasses, on the unit. Do not splash liquids on the unit.
• Clean with a wet cloth. Do not use solvent-based cleaners.
• Regularly check the loudspeaker housings and accessories for visible signs of wear and tear, and replace them when necessary.
• Refer all servicing to qualified service personnel.
• This symbol [WEEE-symbol] on the product indicates that this product should not be treated as household waste. Follow local regulations for recycling of electronic devices.
• IDEA declines any responsibility for misuse that may result in malfunction or damage of the equipment.

Warranty

• All IDEA products are guaranteed against any manufacturing defect for a period of 5 years from the date of purchase for acoustical parts and 2 years from the date of purchase for electronic devices.
• The guarantee excludes damage from incorrect use of the product.
• Any guarantee repair, replacement, and servicing must be exclusively done by the factory or any authorized service centres.
• Do not open or attempt to repair the product; otherwise, servicing and replacement will not be applicable for guarantee repair.
• Return the damaged unit, at the shipper's risk and freight prepaid, to the nearest service centre with a copy of the purchase invoice in order to claim guarantee service or replacement.

Declaration of Conformity

I MAS D Electroacústica S.L., Pol. A Trabe 19-20, 15350 CEDEIRA (Galicia - Spain), declares that BASSO21-A complies with the following EU Directives:

• RoHS (2002/95/CE) Restriction of Hazardous Substances
• LVD (2006/95/CE) Low Voltage Directive
• EMC (2004/108/CE) Electro-Magnetic Compatibility
• WEEE (2002/96/CE) Waste of Electric and Electronic Equipment
• EN 60065: 2002 Audio, video and similar electronic apparatus. Safety requirements.
• EN 55103-1: 1996 Electromagnetic compatibility: Emission
• EN 55103-2: 1996 Electromagnetic compatibility: Immunity

[CE-certified] [RoHS-compliant]