Lubell Labs now has a woofer for sale. It is
the VC2C and has been under development for several years. It
adds a new dimension to underwater sound for bodies of water
having 10' minimum depth. (The VC2C must be used at 10' depth
to prevent damage.) It is literally sound that you can feel!
Because of limited quantities, initial sales will be limited
to marine scientists, ocean engineers, the military, and to
laboratories in the United States. Specifications are:
-
Description: Axial
symmetric double piston radiator with spring
copper diaphragms and external stops
-
Frequency Range: 50 Hz to
1.5 kHz
-
Resonant Frequency: 115 Hz
+/- 5 Hz
-
Impedance: Varies with
frequency (4 ohms minimum @ 50 Hz; 17 ohms @ 1500
Hz)
-
Maximum Output Level:
174dB/uPa/m
-
Maximum Voltage/Current: 20
Vrms/2.5A (100% duty-cycle)
-
Q Parameters:
Qtco~2.5 Qmc~5
-
Directivity:
Omnidirectional to 1.5 kHz
-
Cable: Teledyne Marine
LPIL-3-FS on 50 feet of 16/3 SO
-
Operating Depth: 10 feet
(3.05 meters) minimum, 50 feet (15.24 meters)
maximum
-
Maximum Air Pressure: 23
psi (WARNING: use provided hand air pump only!)
-
Piston Stop Gap: 0.016
inches (Schrader valve pin depressed to equalize
internal/external pressure)
-
Dimensions: 8"D x 9.75"L
-
Weight: 21 lbs
-
-
Price: $5999 (includes 50'
cable, hand pump, digital pressure gauge, and
carry case)
|
Output level can be increased by using arrays of two and four
units. Has been calibrated at Dodge Pond.
