Eminence SD28, apt:30, apt:80, apt:150, apt:200 Specification
APT Series Supertweeters
The APT:80S, 150S, and 200S horn flares are available separately for use with any 1” exit driver
with 1 3/8” ext. thread.
SD28 apt:30 apt:80 apt:150 apt:200
Description Soft dome tweeter Horn loaded tweeter
Horn Type
Throat Size
Dispersion
Power Rating
Nominal Impedance
Minimum Impedance
Sensitivity
Resonance
Usable Frequency Range
Recommended Crossover
Voice Coil Diameter
N/A Conical Conical Constant Directivity Bi-Radial
N/A 1.0”, 25.4 mm 1.0”, 25.4 mm 1.0”, 25.4 mm 1.0”, 25.4 mm
60° 80° Conical 80° Conical 100 x 50 90 x 90
10 W (AES)
20 W (EIA-426B)
4 Ω 8 Ω 8 Ω 8 Ω 8 Ω
3.5 Ω @ 4.4 kHz 7.5 Ω @ 5 kHz 7.3 Ω @ 6 kHz 7.7 Ω @ 6 kHz 7.3 Ω @ 6.1 kHz
92.5 dB 93.4 dB (116.5 max ) 102.3 dB 102.4 dB 103 dB
1.5 kHz 2.2 kHz 1.5 kHz 2.7 kHz 2.6 kHz
1.5 kHz – 20 kHz 3.5 kHz – 20 kHz 3.5 kHz – 20 kHz 3.5 kHz – 20 kHz 3.5 kHz – 20 kHz
1.5 kHz / 12 dB 3.5 kHz / 12 dB 3.5 kHz / 12 dB 3.5 kHz / 12 dB 3.5 kHz / 12 dB
1.0”, 25.4 mm 0.5”, 12.7 mm 1.0”, 25.4 mm 1.0”, 25.4 mm 1.0”, 25.4 mm
10 W (AES) 35 W (AES) 35 W (AES) 35 W (AES)
APT:50 Driver with
APT:80S Horn
APT:50 Driver with
APT:150S Horn
APT:50 Driver with
APT:200S Horn
Voice Coil Former
Diaphragm Material
Magnet Composition
Width/Height/Depth
Cut-out
Weight
Horn Material
Aluminum Aluminum Kapton Kapton Kapton
Silk Mylar Phenolic Phenolic Phenolic
Neodymium Ferrite Ferrite Ferrite Ferrite
1.0” height, 1.48” width
25.4 x 37.6 mm
Rear mounting hole diameter
1 x M4 x 0.7
0.1 lbs., 0.05 kg 0.4 lb., 0.18 kg 1.80 lb., 0.82 kg 1.90 lb., 0.86 kg 2.50 lb., 1.13 kg
N/A ABS ABS ABS ABS
2.61 x 2.61 x 1.78 in.,
66.2 x 66.2 x 45.2 mm
2.31 x 2.31 in., 59 x 59 mm 3.15 x 3.15 in., 80 x 80 mm 6.7 x 3.4 in., 170 x 86 mm 4.3 x 4.3 in., 109 x 109 mm
3.40 x 3.40 x 3.70 in.,
86.4 x 86.4 x 94.0 mm
7.60 x 4.50 x 5.10 in.,
193.0 x 114.3 x 129.5 mm
5.90 x 6.00 x 6.30 in.,
149.9 x 152.4 x 160.0 mm
APT Series Supertweeters
K2
dBSPL
Ohm
K2
SPL vs Freq
K2
SPL vs Freq
K2
SPL vs Freq
K2
Frequency Response and Impedance curves*
SD28
dBSPL
100
95
90
85
80
75
70
65
60
55
50
200 Hz 500 1K 2K 5K 10
dBSPL
110
105
100
95
90
85
80
75
70
65
60
200 Hz 500 1K 2K 5K 10
Ohm
Ohm
APT:30
10
9
8
7
6
5
4
3
0K
105
100
95
90
85
80
75
70
65
60
55
200 Hz 500 1K 2K 5K 10
20
10
9
8
7
6
0K
APT:150APT:80
dBSPL
20
10
9
8
7
6
0K
110
105
100
95
90
85
80
75
70
65
60
200 Hz 500 1K 2K 5K 10
Ohm
20
10
9
8
7
6
0K
APT:200
dBSPL
110
105
100
95
90
85
80
75
70
65
60
200 Hz 500 1K 2K 5K 10
* Multiple units exceed published ratings evaluated under EIA 426A specification while tested in a free-air, non-temperature-controlled environment. Multiple compression drivers exceeded published ratings evaluated under EIA-426A or AES specification while mounted on Eminence’s H290, H290S, or H2EA horn in a non-temperature-controlled environment.
The average output across the usable frequency range when applying 1W/1m into the nominal impedance. i.e: 2.83V/8Ω, 4V/16Ω. Eminence response curves are measured under the following conditions: All speakers are tested at 1W/1m using a variety of test set-ups for the appropriate impedance | LMS using 0.25” supplied microphone (software calibrated) mounted 1m from wall/baffle | 2 ft.
x 2 ft. baffle is built into the wall with the speaker mounted flush against a steel ring for minimum diffraction | Yamaha P3500S amplifier | 2700 cu. ft. chamber with fiberglass on all six surfaces (three
with custom-made wedges). Compression drivers were tested using a 2ft x 2ft baffle built into the wall with horn front mounted.
Prices, specifications and product cosmetics are subject to change without notice.
Ohm
20
10
9
8
7
6
0K
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