The Lubell Labs VC2C is an underwater acoustic transducer covering the frequency range of 50 Hz to 1500 Hz at a maximum sound pressure level of 174dB/uPa/m @ 115 Hz. The VC2C must be accurately pressurized while topside, in order to balance the internal pressure with the external pressure for the intended fixed operating depth. We recommend connecting the VC2C to the 4 ohm and common terminals of the InterM A-120 amplifier (North America sales only), which must be purchased separately. (International users may also use a TOA BG-2120 and connect VC2C to the 4 ohm tap.) Since the VC2C has a maximum current rating of 3A, we recommend installing a Bussman AGC-3-R or AGC-4-R fast-blow 3AG fuse in the white signal lead fuse holder to help protect the VC2C against burn-out. Sales of the VC2C is limited to marine scientists and laboratories, ocean engineers, and the military.
Description: Axial symmetric dual-piston radiator with spring copper diaphragms and external stops
Materials: End plate assm - 316 stainless steel; Pistons/housing - Hardcoat anodized 6061 aluminum
Finish: Safety yellow TGIC polyester powder coat
Frequency Range: 50 Hz to 1.5 kHz
Resonant Frequency: 115 Hz +/- 5 Hz
Impedance: Varies with frequency (4 ohms min @ 50 Hz; 17 ohms @ 1500 Hz)
Maximum Output Level: 174dB/uPa/m
Maximum Voltage/Current: 20 Vrms/3A (100% duty cycle)
Q Parameters: Qtco~2.5 Qmc~5
Directivity: Omnidirectional to 1.5 kHz
Bulkhead Connector: Subconn MCBH3MSS (Coding: Pin 2 hot, Pin 1 return, Pin 3 ground)
Mating Cable: Subconn MCIL3F // MCDLS-F on 50 feet (15.24m) 18/3 SOOW cable (connector lubricating instructions)
Minimum / Maximum Depth: 10 feet (3.05 meters) - 50 feet (15.24 meters)
Maximum Pressure: 23 psi (WARNING: use provided hand air pump only!)
Piston Stop Gap: 0.016 inches (Schrader valve pin depressed topside before deployment to equalize internal/external air pressure)
Dimensions (LWH): 9.5 IN (241.3mm) x 8.5 IN (215.9mm) x 8.5 IN (215.9mm)
Weight: 23.25 lbs (10.55 kg)
Documents: Instruction sheet, TVR plot, SPL plot, Z plot, Z plot 50Hz-200Hz
Limited Warranty: 1 year parts & labor against manufacturing defects