Lowell LT-410-72-BB Specifications

Heard Everywhere Since 1947

Spec No. 1048 | Rev. 04.21.15 | pg. 1/2

Model No.

LT-410-72-BB

1x2 Speaker System for Tile Ceilings

• Includes 4" driver, transformer, 1x2 grille/subplate,
round enclosure

Quick install speaker system for suspended tile ceilings
features a 4" high compliance driver, dual voltage trans­former, 1x2 fine perforation grille with subplate, and

0.147 cu.ft. enclosure. The patented assembly features
an integral T-bar support that quickly replaces half of a
non-tegular 2'x2' ceiling tile or one-fourth of a non-tegular
2'x4' ceiling tile. Ideal for commercial paging and back­ground music.

Features

• Driver (JR410): 4" 15W high-compliance driver with

10 oz. magnet

• Transformer (TLM-572): 70/25V transformer with

taps at 0.25, 0.5, 1, 2, 5W

• Grille with subplate (1x2): Fine-perforation grille is

designed to provide maximum free-air space for excel­lent sound transmission while maintaining an unobtru­sive appearance in new or existing tile ceilings.
Includes an integral 2' T-bar to support neighboring
non-tegular ceiling tile. Quick install. White finish.

• Backbox (8XD4): 0.147 cu.ft. backbox protects driver

assembly. Speaker leads exit through a metal clamp
for fast connection—just splice connecting wires, push
them inside the enclosure and tighten the clamp. Black
finish.

Mounted driver with factory­wired transformer.

Assembly is fabricated with a hole in one corner
and restraint tab in the diagonally opposite cor­ner for (two cable) code compliance. Use the tip
of a screwdriver to bend the tab out for tie-offs.

Fine perforation pattern grille.

Patented Integral T-Bar supports
adjacent non-tegular ceiling tile.*

with domestic &

global components

A&E Specifications

The speaker system for suspended tile ceilings shall be
Lowell Model No. LT-410-72-BB. The 1'x2' system shall
replace half of a non-tegular 2'x2' ceiling tile or one-fourth
of a non-tegular 2'x4' ceiling tile and shall include an in­tegral T-bar to support adjacent ceiling tile. Each speaker
system shall include a factory-mounted driver mounted
to a subplate with a fine perforation steel grille finished
in white powder epoxy. The driver shall be 4" with a
power rating of 15W. It shall have a magnet weight of
10 ozs., frequency response of 67Hz-16kHz (+6dB);
53Hz-20kHz (+8dB) and sensitivity of 90.8dB Avg. meas-

Lowell makes every effort to provide accurate information while reserving the right to change specifications and/or improve manufacturing methods without notification.
©2015 Lowell Manufacturing Company, 100 Integram Dr., Pacific MO 63069 | tel. [phone] | www.lowellmfg.com

ured 1W/1M. The system shall include a factory-mounted
dual voltage (70/25V) transformer with primary taps at

0.25, 0.5, 1, 2, and 5W and a 0.147 cu.ft. steel backbox
with black powder epoxy finish. Speaker connections
shall exit the enclosure through a metal clamp.

*U.S. patent no’s. 7,120,269; D467,579; 7,643,647

Heard Everywhere Since 1947

Drawings

Spec No. 1048 | Rev. 04.21.15 | pg. 2/2

Driver Specifications (half space)

Driver Size Power Type Ceramic Frequency Dispersion Voice Coil Voice Coil Sensitivity Max Depth Weight
No. Rating Magnet Response @2000Hz -6dB Impedance Diameter 1W / 1M SPL* (w/o xfmr) (w/o xfmr)

JR410 4" 15W High 10 oz. 67Hz-16kHz (+

compliance 53Hz-20kHz (+8dB) conical

*Calculated value 1M @ driver power rating.
Additional technical information is available on the spec sheet for driver No. JR410.

6dB) 170 degrees 8 ohms 1" 90.8dB Avg 102.6dB 2.08" 1.7lbs.

Lowell makes every effort to provide accurate information while reserving the right to change specifications and/or improve manufacturing methods without notification.
©2015 Lowell Manufacturing Company, 100 Integram Dr., Pacific MO 63069 | tel. [phone] | www.lowellmfg.com