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1 Introduction to current-drive audio amplifiers for audio ...
http://www.woodjohn.uk/Introduction%20to%20current-drive%20audio%20amplifiers%20Rev.%201.pdf
differences between conventional voltage-drive amplifiers and current-drive amplifiers are explained using ideal amplifiers. Examples are then given of the use of freely-available integrated audio-amplifier parts in current-drive configurations. The paper is intended to be as accessible as possible, without requiring advanced technical knowledge.
Current Drive Power Amplifiers - sound-au.com
https://sound-au.com/articles/current-drive.htm
A current drive or mixed mode amplifier cannot provide more current or voltage than it's designed to provide to the load, and if the maximum current is exceeded the amplifier may be destroyed. Exceeding the linear voltage range simply results in clipping, and the output is limited by the supply voltage - current drive is inoperable with an overdriven amplifier .
Current Drive & DML - Integer Audio
https://www.integeraudio.com/current-drive--dml.html
Current Drive & Distributed Mode Loudspeaker (DML) Current Drive Amplifier (Transconductance) The speaker's voice coil requires current (not voltage) to provide motive force. T he speaker cone displacement is proportional to the current in the voice coil rather than the voltage across the speaker terminals. The current is the primary mover of the voice coil.
The First Watt Model F1 Current Drive Power Amplifier ...
https://www.enjoythemusic.com/magazine/equipment/1204/firstwattf1.htm
Current drive offers a major alternative to the speaker-amplifier interface. A transconductance amplifier is operated as a current source with a high source impedance relative to that of the speaker. The output impedance must also be linear and frequency independent.
Current Source Amplifiers and Sensitive / Full-Range Drivers
https://www.passdiy.com/pdf/cs-amps-speakers.pdf
We built an audio current source that delivered 1 amp of AC current per input volt to a maximum of 10 amps. This kind of amplifier is known as a power transconductance amplifier. Such circuits are fairly common in small chips which don’t generate the high current necessary to drive a loudspeaker. Our amplifier had a high
Current-Drive - The Natural Way of Loudspeaker Operation
https://www.current-drive.info/
Current-drive improves sound reproduction of loudspeakers and reduces distortion by suppressing EMF currents. Book on loudspeaker current-drive with DIY projects.
Ribbon Mic Preamp - Integer Audio
https://www.integeraudio.com/
Over 99% of the commercially available audio amplifiers are based on voltage control. However the speaker's voice coil requires current (not voltage) to provide motive force. Current drive eliminates several speaker distortion mechanisms inherent with voltage control and speaker non-linearities. Current Drive amplifiers are ideally suited for full range single driver speakers (no …
The talk of current amplifier vs voltage in audio ...
https://electronics.stackexchange.com/questions/226401/the-talk-of-current-amplifier-vs-voltage-in-audio
So in theory current steering might be "better". The fact remains that it is impractical, a current output amplifier would apply the maximum voltage it can deliver (it would clip !!!) when no speaker is connected or the speaker's impedance becomes too high. Normal voltage output amplifiers only clip when overloaded when a large signal is applied.
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