Multiple output transformers network for sound reproducing system
OwnerMan Ho Kiminventor
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Abstract
A multiple output transformer network for a high-fidelity sound reproducing system which includes a high-frequency speaker and a low-frequency speaker, first and second output transformers, a high frequency by-pass filter coupling the secondary of the first output transformer to the high frequency speaker, and a low-frequency by-pass filter coupling the secondary of the second transformer to the second speaker, all mounted in a remote speaker unit. The by-pass filters have predetermined crossover characteristics. The primary windings of the transformers are connected to the output amplifier of the sound reproducing equipment by first and second extension leads.
Claims3
In combination:
- sound reproducing equipment including an output power amplifier;
- a remote speaker unit;
- a plurality of extension leads extending between said power amplifier and said remote speaker unit;
- a corresponding plurality of capacitors included in said power amplifier for coupling said extension leads to said power amplifier;
- a high frequency speaker and a low frequency speaker included in said remote speaker unit;
- a corresponding plurality of output transformers included in said remote speaker unit each having a primary winding and a secondary winding and having respective ones of the primary windings connected to corresponding ones of said extension leads;
- a high frequency filter included in said remote speaker unit coupling the secondary of one of said output transformers to said high frequency speaker;
- a low frequency filter included in said speaker unit coupling the secondary winding of another of said output transformers to said low frequency speaker;
- said high frequency filter and said low frequency filter having predetermined crossover characteristics, said high frequency filter and said low frequency filter each including inductance means and capacitance means;
- first control means coupled to said high frequency filter for varying the inductance of said inductance means and the capacitance of said capacitance means included in said high frequency filter;
- and second control means coupled to said low frequency filter for varying the inductance of said inductance means and the capacitance of said capacitance means included in said low frequency filter.
Dependencies are inferred from the claim text.