Lowell SM805A Manual

Lowell Højttaler SM805A

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INSTALLATION SHEET #IS-SM805A

Sound Masking Speaker System

Electrical and Acoustical Specifications

Sensitivity

(70V/1W/1M)

Driver Type Frequency Response

Model

Number

Transformer

Taps Switch

Dispersion

(-6dB@2kHz Octave)

1/4W @ 70V

1/2W @ 70V

1W @ 70V

2W @ 70V

4W @ 70V

#805

8" Dual

Cone

Model

Type

Black

With

Hangers

Instruction Sheet:

IS-SM805A

P/N: 19311

Page 1 of 1

Printed on 2-25-13

Lowell Manufacturing Company 100 Integram Drive Pacific, Missouri 63069 U.S.A.

Phone: 800-325-9660 Fax: 636-257-6606 (www.lowellmfg.com)

Design Note: Sound masking speakers are typically mounted above the

finished lay-in tile ceiling in the plenum space. In installations where the

plenum space is not taller than 6', the sound masking speakers are installed

with the bottom of the enclosure roughly 1' above the tile ceiling with the

speaker aiming upward so the masking noise bounces off of the slab or deck

above. When the plenum space is taller than 6', use the SM810A masking

speaker instead because the SM810A can be hung 6' above the finished

ceiling aiming downward. The SM805A masking speaker hangers have been

designed to hang the speaker only in the upward firing orientation. The exact

mounting position of the masking speaker dramatically affects the dispersion

of the sound masking noise. This installation sheet has been written under the

assumption that a qualified consultant or designer has pre-determined the

speaker spacing and mounting orientation that will result in the desired sound

masking noise coverage.

SM805A 183Hz-6.7kHz + 7dB 95.6dB 110 Degrees

Conical

“Off” Switch

Position

Is Also

Available

Wire nuts or crimp type connectors (provided by the installer) may be

used to make a simple splice to the provided positive red (+) and common

black (-) input wires. If desired, a second cable may be spliced in parallel

with the incoming line to feed to the next speaker in the string. After making

the splice, loosen the Romex connector clamp screws and insert the splice

into the masking speaker through the Romex connector. Tighten down the

Romex connector clamp to provide strain relief for the input cable or cables.

If desired, the input plate may be removed, the wires can be pushed through

the Romex connector and plate, the spice can then be made, and the plate

can be screwed back in place. The input wiring splice should always be

permanently located inside of the masking speaker wiring cavity and not in

open space outside of the input plate.

A transformer tap selector switch is provided on the side of the masking

speaker enclosure. 70V 1/4W, 1/2W, 1W, 2W, and 4W select “OFF” and

positions are provided. The transformer tap switch is set at 1W when

shipped from the factory. Set the selector switch as specified by the system

designer.

Unfold the hangers as shown and use the two (2) (4) “S” hooks and four

foot piece of chain (supplied with the masking speaker) to suspend the

speaker from the building structure. Hanging point hardware to attach the

chain to the building structure will be furnished by the installer. The speaker

system must be mounted in accordance with local, state, and federal codes

and regulations, and industry standard practices.

When shipped from the factory, the hangers are folded across the front

of the grille.

Produkt Specifikationer

Mærke:	Lowell
Kategori:	Højttaler
Model:	SM805A
Antal pr. pakke:	1 stk
Produktfarve:	Sort
Udgangseffekt (RMS):	12 W
Forbindelsesteknologi:	Ledningsført
Højttaler, type:	2-vejs
Lyd-output kanaler:	- kanaler
Højttaler, placering:	Kan monteres i loftet
Diameter:	8255 mm
Antal drivere:	2
Driver diameter:	203.2 mm
Transformer ventiler:	4 W
Højttalergrill materiale:	Stål
Transformatorspænding:	70 V