Outdoor Column Speaker, 40w, Full Range, White, IP66

Outdoor Column Speaker: T-904B

The ITC T-904B is a 40W column speaker for 100V and 70V line systems, built for outdoor and indoor paging and background music. It has four 4" full-range drivers in an aluminium body rated IP66, so it can be mounted in the weather on a wall, post or building edge. It is the step up from the T-903B: one more driver, a higher power tap and a longer body, for larger areas or noisier spaces.

Key features

• IP66 weatherproof construction: aluminium alloy shell and aluminium mesh grille, with a breathable cotton layer behind the mesh to keep out dust and moisture.
• Four 4" full-range drivers: covers speech and music from one column, with clear treble for announcements.
• 20W and 40W taps on a 100V line: or 10W and 20W on a 70V line, so you can set the level for each location.
• Built-in audio transformer: a high-performance transformer reduces loss on the line.
• Adjustable L-shaped bracket: supplied with the speaker, so the angle can be set on installation.

Specifications

T-904B or T-903B?

Both are the same style of aluminium column with the same bracket. The T-904B has four drivers where the T-903B has three, taps up to 40W where the T-903B stops at 30W, and a slightly longer body. Choose the T-903B for car parks, corridors and courtyards of moderate size. Choose the T-904B when the area is larger, the background noise is higher, or you want to run fewer speakers at a higher level.

Ideal applications

• Outdoor spaces: school grounds, courtyards, car parks, train stations and playing fields.
• Industrial areas: factories, warehouses and yards that need clear announcements.
• Commercial spaces: shopping centres, supermarkets, hotels and leisure venues.
• Schools and universities: paging and background music across campuses.

Setting it up

The T-904B is a constant voltage (line) speaker, so it needs a 100V or 70V amplifier. Choose a tap for each speaker, then add up the taps on the line and keep the total below the amplifier's rated output. For example, the T-B120DTB 120W mixer amplifier can drive three T-904B speakers on their 40W taps. Tell us the area and how many speakers you plan to use, and we can recommend a layout.

Frequently asked questions