BC/OC 0.75" Tweeter
Vifa
Type Number:OC20SC15-04

Features

The BC/OC product line is known for its quality tweeters and midwoofers. Designed in Denmark by our experienced team of audio engineers, Peerless BC/OC products can meet the most demanding needs for both volume and audio excellence. The BC/OC product line has ferrofluid in the magnet gap for improved cooling of the driver.

Driver Highlights: No faceplate with a keylock for easy connection to your design baffle; cooling fan for improved power handling; coated textile dome for improved performance.

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Specs
Electrical Data
Nominal Impedance Zn 4 ohm
Minimum Impedance Zmin 3.7 ohm
Maximum Impedance Zo 7.9 ohm
DC Resistance Re 3.2 ohm
TS Parameters
Resonance Frequency fs 1520 Hz
Mechanical Q factor QMS 2.43
Electrical Q factor QES 3
Total Q factor Qts 1.34
Ratio fs/Qts F 1134.3
Effective Piston Area sd 4.3 cm^2
Sensitivity 2.83V/1m 90 dB
Power Handling
100h RMS noise test IEC 15 W
Long-term Max Power IEC 18.3 30 W
Rated Noise Power IEC 18.1 15 W
Voice Coil and Magnet Parameters
Voice Coil Diameter 20 mm
Voice Coil Height 1.7 mm
Voice Coil Layers 2
Height of the Gap 2 mm
Diameter of Magnet 18.5 mm
Height of Magnet 3 mm
Misc Parameters
Effective Frequency Range (IEC 21.2) 900-35.5k Hz
Frame dimensions 33.5 mm
Total Mass 35 grams
Frequency at ka=2 9389 Hz

Frequency

Mechanical Dimensions