BC/OC 1" Tweeter
Vifa
Type Number:OC25SC75-04

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.

Specs

Electrical Data
Nominal Impedance Zn 4 ohm
Minimum Impedance Zmin 5.8 ohm
Maximum Impedance Zo 11 ohm
DC Resistance Re 3 ohm
TS Parameters
Resonance Frequency fs 1350 Hz
Mechanical Q factor QMS 3.06
Electrical Q factor QES 1.47
Total Q factor Qts 0.99
Ratio fs/Qts F 1363.6
Effective Piston Area sd 6.8 cm^2
Sensitivity 2.83V/1m 94 dB
Sensitivity 1W/1m 91 dB
Power Handling
100h RMS noise test IEC 25 W
Long-term Max Power IEC 18.3 50 W
Rated Noise Power IEC 18.1 25 W
Voice Coil and Magnet Parameters
Voice Coil Diameter 25 mm
Voice Coil Height 2 mm
Voice Coil Layers 2
Height of the Gap 2 mm
Diameter of Magnet 24.5 mm
Height of Magnet 3.5 mm
Misc Parameters
Effective Frequency Range (IEC 21.2) 750-25k Hz
Frame dimensions 41.05 mm
Total Mass 55 grams
Frequency at ka=2 7466 Hz

Frequency

Mechanical Dimensions

Drawing Dimensions
Outside Diameter OD 38 mm
Flange Thickness FT 2.95 mm
Magnet Diameter MD 32.5 mm
Cutout Diameter CD 41.05 mm
Interior Depth ID 21 mm