Pro Audio

HF Products & Components

Spec Sheet

SD28

The Eminence SD28 soft-dome tweeter offers unmatched performance to value in an ultra-compact design. With an overall diameter of less than 1.5 inches, this 4 ohm silk dome tweeter delivers smooth high frequency reproduction from 1.5 to 20 kHz. Perfect for car audio, ATV, RV, or any other application where space is limited.

Suggested Retail  $49.99
Your Price  $19.99

For contiguous USA shipments only.

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Supertweeters
Speaker Detail
Specification
TypeN/A
Throat Size", mm
Dispersion60°
Power Rating10W (AES), 20W (EIA-
Nominal impedance
Minimum impedance3.5 Ω @ 4.4 kHz
Sensitivity92.5 dB
Resonance1.5 kHz
Usable Frequency Range1500 Hz – 20 kHz
Low Rec. Crossover1.5 kHz
W x H x D (in)1.48" x 1" x "
W x H x D (mm)37.6 x 25.4 x mm
Cut OutRear mount,
Weight0.1lbs, 0.05kg
MaterialN/A
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Footnotes

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.

BETA 8CX, 10CX and 12CX are coaxial speakers with tweeter sold separately. The data for these coaxial woofers was calculated with the ASD:1001 driver screwed into the woofer, but not active.

Prices, specifications and product cosmetics are subject to change without notice.