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INSTALLATION SHEET FOR
0S-150TB AND OS-150TW
150 WATT INDOOR/OUTDOOR SPEAKERS
Instruction Sheet
IS-OS150
Issued 1-: 13-16
Lowell Manufacturing Company 100 Integram Drive Pacific, Missouri 63069 U.S.A.
Call: 800-325-9660 Fax: 636-257-6606 Click: www.lowellmfg.com
1
The OS-150TW (white and OS-150TB (black speakers may be mounted indoors ) )
or protected (covered outdoors The models are identical except for color In this ) . .
installation sheet the speaker will be referred to simply as the OS-150T The front , .
of the speaker (See Figure 1 is protected with an aluminum fine mesh grille with a )
weather resistant scrim material behind the grille. The speaker and grille may be
wiped down for cleaning but the use of a power washer or other high pressure ,
cleaning equipment will void the speaker’s warranty. The rear of the speaker (See
Figure 2 includes a U-bracket and an input selector switch. )
MECHANICAL SPECIFICATIONS
Complete OS-150T weight: . lbs. (8.165 18 0 Kg.)
Enclosure: Weather-resistant UV-resistant talc impregnated polypropylene.
Front Grille: Weather-resistant UV-resistant powder coat painted aluminum.
U-Bracket Weather-resistant plated and powder coat painted steel.:
ELECTRICAL SPECIFICATIONS
Power Rating: 150W RMS (RS426B test procedure).
Frequency Response: 65Hz- kHz + 620 dB
Sensitivity: 91.0dB log average SPL (at ohms @1W/1M8 )
Woofer: 8" polymer coated paper composite cone with cloth surround.
HF Compressions Driver: Titanium diaphragm with 1 voice coil ferrite magnet." &
Impedance: 8-ohms nominal (minimum impedance 8. ohms 6 @ 274 Hz).
Input: Screw terminals capable of attaching (2 #12 stranded conductors.–)
9"
22 86. cm
INPUT SELECT SWITCH - TRANSFORMER TAP SETTINGS
TAP
A
B
C
D
25 70V LINE V LINE
7.5W
100V LINE
3.8W
1.9W
. W94
60W
30W
15W
7.5W
60W
DO NOT USE
30W
15W
8-ohm switch position bypasses the transformer.
E . W 3.8W 7.5W48
16"
40 64. cm
10 25" / .4cm (as shipped from factory)
11" / . cm (using alternate bracket holes)27 94
16.3"
41 40. cm
2" / 5.08cm
8.3"
21 08. cm
Dispersion: 80o vertical X 80o
horizontal conical dispersion (-6dB down at 2kHz).
FIGURE 1
FIGURE 2
Instruction Sheet
IS-OS150
Issued 1- -: 13 16
Lowell Manufacturing Company 100 Integram Drive Pacific, Missouri 63069 U.S.A.
Call: 800-325-9660 Fax: 636-257-6606 Click: www.lowellmfg.com
2
The OS-150T includes a heavy steel plated and powder coat painted
U-bracket that allows the OS-150T to be mounted vertically (See Figure 3 or )
horizontally (See Figure 4). Only install the OS150T in a protected (covered)
outdoor location and tilt the speaker slightly downward to prevent moisture
from collecting in the drivers. The U-bracket includes a 5/8 diameter center "
hole that may be used to route the speaker cable into the wall. The bracket
also includes vertical and horizontal mounting slots that make it possible to
secure the mounting bolts to the wall and then slide the bracket over those
bolts to hang the speaker (See Figure 5). Be sure to securely tighten the bolts
after the speaker is in place. Some installers prefer to remove the bracket and
mount it to the wall first. That makes it easy to lift the speaker and attach it to
the bracket by replacing the bracket knobs.
The two angle adjustment knobs may be removed and then refastened
through the optional mounting holes in the U-bracket to allow horizontal shelf
mounting with the maximum downward tilt angle of 40 degrees down from
horizontal (See Figure 6).
Speaker Mounting:
SAFETY NOTICE: Speaker installation should only be performed by experienced
qualified professionals with knowledge of the proper load-rated hardware and
safe mounting and rigging techniques. The speaker system must be mounted in
accordance with all local, state and federal codes and regulations and the ,
installation must conform to industry standard practices. It is the responsibility
of the installer to consult a licensed mechanical or structural engineer to
evaluate and certify the structural integrity and safety of any mounting method
before installation. Lowell Manufacturing is not responsible for the use misuse, ,
or misapplication of this loudspeaker product.
The optional U-bracket mounting holes can also be used to mount the speaker
in the vertical orientation (so the speaker can be adjusted horizontally to the
right or left but by attaching the top knob to the furthest hole from the rear of )
the bracket and by attaching the bottom knob to the closest hole in the bracket
(See Figure 7) an automatic degree downward tip of the speaker will result. , 4
A 4 degree upward tilt can also be achieved by attaching the top knob to the
closest hole from the rear of the bracket and by attaching the bottom knob to
the furthest hole in the bracket See Figure 8).
Lowell Manufacturing recommends that a safety cable be used when
speakers are installed over-head The OS-150T has four (4 -20 tapped . ) ¼”
insert points on the rear of the speaker. When mounting the speaker using
the U-bracket that is included, one or more of those ¼”-20 tapped insert
points can be used to attach a safety cable .
8
TOP/TILT-DOWN
BOTTOM/TILT-DOWN
TILT-DOWN
FIGURE 3
FIGURE 4
FIGURE 5
FIGURE 6 FIGURE 7 FIGURE 8
TOP/TILT-UP
BOTTOM/TILT-UP
TILT-UP
Instruction Sheet
IS-OS150
Issued 1- -: 13 16
Lowell Manufacturing Company 100 Integram Drive Pacific, Missouri 63069 U.S.A.
Call: 800-325-9660 Fax: 636-257-6606 Click: www.lowellmfg.com
3
Due to its 70o square linear dispersion pattern (same vertical dispersion as the
horizontal dispersion) the OS-150T is ideal for use in open architecture ,
ceilings firing straight down in a distributed speaker system (See Figure ). 11
The maximum recommended center-to-center spacing is given in the table
below for edge- -edge spacing at a 4 average listening level. Note that to '
center-to-center spacing that is closer than the maximum given in the table,
will result in desirable overlapping coverage. Spacing that is farther apart than
the maximum given in the table will result in undesirable dead spots between ,
the speakers where the coverage is not optimized for listening. The paper at
the link below explains the “linear dispersion” concept for distributed systems.
http://www.lowellmfg.com/tinymce/jscripts/tiny_mce/plugins/filemanager/files/LowellDSSS.pdf
A sound system should be able to achieve a minimum sound pressure level at
every listeners position of at least dB above the loudest expected ambient 10
noise level. To assist the designer with those calculations the on-axis ,
maximum sound pressure level for the OS-150T is given in the table below for
the selector switch in the 8-ohm position (150 watt input and for each of the )
possible transformer tap input selector switch positions.
Distance
Power 2 Feet Feet Feet Feet Feet Feet Feet Feet4 8 16 24 32 48 64 96 Ft. 128 Ft.
150 Watts
Input
60 Watts
30 Watts
15 Watts
7.5 Watts
3. Watts8
1.9 Watts
. Watts94
. Watts48
117dB
113dB
110dB
107dB
104dB
101dB
98dB
95dB
92dB dB 80dB 74dB 7086 .5dB dB 6468 .5dB 62dB 58.5dB 56dB
89dB 83dB 77dB 73.5dB dB 6771 .5dB 65dB 61.5dB 59dB
92dB 86dB 80dB 76.5dB dB 7074 .5dB 68dB 64.5dB 62dB
95dB 89dB 83dB 79.5dB dB 7377 .5dB 71dB 67.5dB 65dB
98dB 92dB 86dB 82.5dB dB 7680 .5dB 74dB 70.5dB 68dB
101dB 95dB 89dB 85.5dB dB 7983 .5dB 77dB 73.5dB 71dB
104dB 98dB 92dB 88.5dB dB 82 dB 80dB86 .5 76.5dB 74dB
107 89dB 101dB 95dB 91 dB.5 dB 85 dB 83dB.5 79.5dB 77dB
111 93dB 105dB 99dB 95 dB.5 dB 89 dB 87dB.5 83.5dB 81dB
Center- -Cen terto
Spacing
Center- -to
Center
Spacing
Spacing = Maximum center- -center spacing for to
edge to edge coverage at 4 listening level.'
Height Face of speaker from the finished floor= .
SpacingHeight Height HeightSpacing Spacing
8 Ft.
9 Ft.
10 Ft.
11 Ft.
12 Ft.
13 Ft.
14 Ft.
15 Ft.
16 Ft.
17 Ft.
18 Ft.
19 Ft.
20 Ft.
21 Ft.
22 Ft.
23 Ft.
24 Ft.
25 Ft.
26 Ft.
27 Ft.
28 Ft.
29 Ft.
30 Ft.
31 Ft.
5.6 Ft.
7 Ft.
8.4 Ft.
9.8 Ft.
11.2 Ft.
12.6 Ft.
14 Ft.
15.4 Ft.
16 8 . Ft.
18 2 . Ft.
19 6 . Ft.
21 Ft.
22 4 . Ft.
23 8 . Ft.
25 2 . Ft.
26 6 . Ft.
28 Ft.
29 4 . Ft.
30 8 . Ft.
32 2 . Ft.
33 6 . Ft.
35 Ft.
36 4 . Ft.
37 8 . Ft.
Speakers Aiming
St raight Down As
Seen From the Floo r
FIGURE 9
FIGURE 10
FIGURE 11
Note Safety cable is not shown.:
For some OS-150T installations the installer may choose to use an omni-style ,
bracket (by others to mount the OS-150T instead of using the U-bracket that )
is included. When an omni-style bracket is used remove the two bracket ,
knobs discard the U-bracket and then replace the bracket knobs in the , ,
tapped holes. The OS-150T has four (4 -20 tapped insert points on the ) ¼”
rear of the speaker that are spaced to accept an Omnimount 25.0W bracket
(see Figure 9 or Adaptive Technologies Group MM-016-BT bracket (see )
figure ). 10 When another manufacturer’s omni-style bracket is used to mount
the OS-150T overhead one of the U-bracket knob 5/ "-18 insert points , 16
should be used to attach a safety cable.
R

Produktspecifikationer

Varumärke: Lowell
Kategori: högtalare
Modell: OS-150TB

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