S55/6 Ultrasound Loudspeaker

Features
    •    high output power to over 250 kHzUSLS3A   
    •    mains or battery operated
    •    easily replaceable membranes
    •    short-circuit-proof
    •    thermal overload protection


This loudspeaker system is designed for very high level reproduction of ultrasound from digital recorders or any signal generator. The amplifier's output circuitry is short-circuit-proofed, and will drive up to 3 loudspeakers in parallel to full-power bandwidth. The amplifier can be powered either from 220 V or 110 V mains supply, or from 24 V d.c. sealed lead-acid batteries (for field use).

THIS LOUDSPEAKER IS NO LONGER MANUFACTURED, BUT PLEASE CONTACT US ABOUT REPAIRS & SERVICING.

Specifications
S56 Loudspeaker
Output level > +105 dB S.P.L. at 0.25 m, 20 - 50 kHz
> +85 dB S.P.L. at 0.25 m, 10 - 150 kHz
Frequency range 10 kHz to over 300 kHz
Dimensions 50 mm dia. (active area)
case - 100 mm dia. x 25 mm
S55 Amplifier
Frequency range 18 kHz to 300 kHz ± 3 dB
Maximum output 140 V peak-peak - short-circuit proofed
Monitor output ÷100 from 'speaker output, 100 ohm impedance
Overload indicator 1.5 dB below maximum output
(ie turns on at 120 V p-p)
Sensitivity 100 mV for maximum output (variable gain)
Input impedance > 50 kΩ
Power supply 220/110 V a.c. 50/60 Hz, 3 A
or 24 V d.c. at 100 mA
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