Specifications

Section
4
page
99
Professional Audio
4
MCMelectronics.com
Product Questions Email: [e-mail] Email: [e-mail]
Follow us on:
Speaker Line Matching Transformers
Line transformers adapt conventional 8ohm speakers for use with multi speaker commercial
systems. This wide range of models, from Atlas Sound, meet today’s high performance quality
standards in a variety of applications. All models include 6" color–coded leads for primary and secondary
connections, except #555-6805, which has solder lugs.
Power Primary Primary Secondary Frequency Insertion
Order # Capacity Volts Taps Taps Response Loss ONLY
555-6801 4 watts 70.7 0.5W, 1W, 2W, 4W 8Ω 60Hz~12KHz ±1dB 1.0dB $10.99
555-6802 8 watts 70.7 1W, 2W, 4W, 8W 4Ω, 8Ω 50Hz~15KHz ±1dB 0.6dB 19.99
555-6803 16 watts 70.7 4W, 8W, 16W 4Ω, 8Ω 40Hz~15KHz ±1dB 0.6dB 31.99
555-6804 32 watts 70.7 8W, 16W, 32W 4Ω, 8Ω 30Hz~15KHz ±1dB 0.6dB 44.99
555-6805 60 watts 70.7 2.5W, 5W, 10W, 4Ω, 8Ω, 16Ω 60Hz~20KHz ±1dB 0.5dB 31.99
20W, 40W, 60W
555-6806 4 watts 25.0, 70.7 0.25W, 0.5W, 8Ω 100Hz~10KHz ±1.5dB 1.5dB 7.99
1W, 2W, 4W
#555-6801
#555-6802
#555-6803
#555-6804
#555-6805
#555-6806
100 Watt Speaker
Matching Transformer
Single coil autoformer allows
high power matching of
8ohm or 16ohm speakers
to 70V or 100V distributed
commercial systems. It may also be used to convert 8ohm
speakers to 16ohm, allowing larger numbers of speakers
to be used in a conventional 8ohm installation. Wide
frequency response makes this ideal in situations where
sonic quality is critical. Color-coded 22AWG connections
are 12" in length. Specifications: •Power capacity: 100W
RMS •Frequency response: 35Hz~19KHz (±1dB) •Taps
(ohms): 8, 16, 50, 100, 200, 400, 800, 1600, 3200 •Taps
(70V): 100W, 50W, 25W, 12.5W, 6.25W, 3.13W, 1.56W
•Taps (100V): 100W, 50W, 25W, 12.5W, 6.25W, 3.13W
•Dimensions: 2.80" (H) x 2.31" (W) x 1.15" (D)
•Weight: 1.7 lbs.
Order # (1-3) (4-9) (10-up)
555-7127 $31.99 $29.95 $27.95
“Peel and Stick” 70 Volt
Line Transformer
Peel and stick
design greatly
reduces installation time
required when adding this
transformer to typical 8ohm
speakers. Attached mounting
bracket features an adhesive pad that quickly and
securely attaches to speaker magnet, eliminating the need
for additional hardware. Once attached, the pigtail leads
easily attach, allowing standard speakers to be used with
commercial 70V systems. Transformer handles 20W
RMS, and has primary taps for 5W, 10W, 15W and
20W. Secondary connections accommodate 4ohm
or 8ohm speakers.
Order # (1-3) (4-9) (10-up)
555-2028 $18.99 $17.95 $15.19
Speaker Line
Matching Transformers
Line transformers adapt
conventional 8ohm speakers
for use with multi speaker commercial
systems. High efficiency design
provides insertion loss of less than
0.6dB, with frequency range of
50Hz~15KHz. A single unit is
compatible with both 70.7V and
25V systems, for greater flexibility, and models are
available with 10W and 30W RMS capacity. Secondary
impedance is 8ohm. Primary taps: •10W model: 0.63W,
1.25W, 2.5W, 5W and 10W •30W model: 5W, 10W, 15W,
20W and 30W
Order # Capacity (1-9) (10-24) (25-up)
555-7120 10W RMS $4.69 $4.09 $3.59
555-7125 30W RMS 13.99 11.59 10.39
Compact 70 Volt Speaker
Line Transformer
Adapts conventional
8ohm speaker for use with
commercial 70V distributed
systems. High efficiency
design provides very
low insertion loss and
frequency response of
50Hz~15KHz. Small 2W
size is ideal when power requirements are low and
space is limited. •Primary taps: 1W, 2W •Output: 8ohm
•Dimensions: 1" (H) x 1
1
⁄4" (W) x 1" (D) •Mounting
holes: 1
1
⁄2" centers
Order # (1-9) (10-24) (25-up)
555-7117 $3.29 $2.85 $2.49
Ceiling
Speaker/
Baffle Combination
Complete ceiling speaker
system includes an 8" dual cone
speaker, steel ceiling baffle and
line transformer. It is perfect
for general purpose background
music and paging applications in
offices, waiting rooms and other
public areas. The 8" diameter
speaker features a 5 oz. ceramic magnet and 8ohm,
1" voice coil for 15W program power capacity and
50Hz~18KHz response. The attached transformer is
compatible with 25V and 70V constant voltage speaker
systems, and has
1
⁄2W, 1W, 2W and 5W taps. The 12
3
⁄4"
diameter grill features a textured white epoxy finish that
compliments any room decor. Units with optional front
mount 50ohm volume control allow quick convenient
local adjustment of sound level.
Order # Mfr. # Description (1–3) (4–up)
555-6580 FD72W Speaker, transformer, $24.99 $22.50
grill
555-6581 C5AT72 Speaker and 16.99 -
transformer only
Heavy-Duty Ceiling
Speaker/Baffle Combination
Designed for higher noise areas which require higher
power capacity, this ceiling speaker system includes
an 8" dual cone speaker, steel ceiling baffle and line
transformer. The 8" diameter speaker features a 10 oz.
ceramic magnet and 8ohm, 1" voice coil for 25W program
power capacity and 50Hz~18KHz response. The attached
transformer is compatible with 25V and 70V constant
voltage speaker systems, and has
1
⁄2W, 1W, 2W and 5W
taps. The 12
3
⁄4" diameter grill features textured white
epoxy finish that compliments any room decor. EZ
Mount version is designed for use in standard 2 x
4 ceiling installations where back boxes are not
required. Pre–mounted brackets install quickly
to included support rails with included wing nuts.
Order # Mfr. # Description ONLY
555-6585 HD72W Speaker, transformer, $21.99
grill
555-6596 EZHD72W Speaker, transformer, 25.99
grill, EZ Mount brackets
555-6587 C10A Speaker only 10.99
Easy Install™ Ceiling Speaker
Easy Install™ surface-mount speakers provide fast, cost effective drop ceiling installation
in less than one minute. Two specially designed color-coded studs pierce the ceiling tile, and
use custom designed wing nuts to secure the speaker in place. These studs also provide the
electrical connection with standard wire nuts from the top of the tile. Speakers may also be
installed in surfaces such as drywall or wood, up to 1.25" thick, by drilling two small pilot
holes. The enclosure uses a combination of direct and reflective paths, for consistent sound
dispersion. A large O-ring seal at the base provides an airtight seal against the ceiling. Rotary
volume control allows easy local adjustment after installation. Both are designed for use with
70V constant voltage amplifier outputs. Includes a rotary selector for 0.25W, 0.5W, 1.0W,
2.0W and 4W. Specifications: •Frequency response: 125Hz~15KHz •SPL: 90dB •Minimum
dispersion: 120˚ •Base diameter: 8.75" •Overall diameter: 9.5" •Height: 3" •Color: White
Order # ONLY
555-6416 $36.99
70.7 Volt Line
Output Transformer
These heavy-duty high
power line matching
transformers adapt 4ohm
or 8ohm speaker outputs
from conventional audio
equipment, to 70.7V for
use with public address speaker systems. •Frequency
response: 40Hz~20KHz Primary taps: •4ohm •8ohm
•Secondary tap: •70.7V
Power Capacity Dimensions
Order # (RMS) (H) x (W) x (D) (1-2) (3-up)
555-6451 100W 3
1
⁄8" x 3
3
⁄4" x 3
1
⁄4" $47.99 $42.95