The Lubell Labs LL1424HP is a high-power piezoelectric Underwater Acoustic Transducer (UAT) designed for use in Underwater Acoustic Deterrent Systems (uADS), Diver Deterrent Systems (DDS), Acoustic Sub-Bottom Profiling (SBP) systems, and general military and scientific applications.

The Lubell Labs LL1424HP has a useful frequency range of 200 Hz - 9 kHz, a maximum SPL of 197dB/uPa/m @ 600Hz, and a nominal impedance of 4 ohms (varies with frequency - see US Navy Z plot or tabular data). The LL-1424HP is intended for use in rivers, lake, and ocean by virtue of it's rugged MIL-A-8625 Type III hard coat anodize, and 8 mil PPG Amerlock II epoxy finish. The LL1424HP comes mounted in a heavy duty 316 stainless steel cage with an isolation mounting system.

The Lubell Labs LL1424HP is fitted with a Subconn MCBH3MAS underwater mateable bulkhead connector, and includes a mating 100 foot (30.48 m)16 AWG 3-conductor Subconn SOOW cable fitted with Speakon NL4FC connector for connection to Lubell LL1424HP transformer box.

Included with the Lubell LL1424HP is a Lubell Labs AC1424HP transformer box, which connects between the LL1424HP transducer and the recommended amplifier (not included). The AC1424HP transformer box is a key element in the overall system design, providing tuned RCL circuitry for proper impedance and response of the connected LL1424HP transducer, as well as electrical isolation of the LL1424HP transducer housing.

Lubell Labs recommends the Dynacord C3600FDI (or Dynacord IPX10:4 for multi transducer applications), which uses Class AB topology to remain stable when driving reactive loads such as the Lubell Labs LL1424HP. Here are three possible connection schemes: