Abstract
Current driven loudspeakers have previously been investigated but the literature is limited and the advantages
and disadvantages are yet to be fully identified. This paper makes use of a non-linear loudspeaker model to
analyse loudspeakers with distinct non-linear characteristics under voltage and current drive. A multi tone
test signal is used in the evaluation of the driving schemes since it resembles audio signals to a higher degree
than the signals used in total harmonic distortion and intermodulation distortion test methods. It is found
that current drive is superior over voltage drive in a 5” woofer where a copper ring in the pole piece has not
been implemented to compensate for eddy currents. However the drive method seems to be irrelevant for
a 5” woofer where the compliance, force factor as well as the voice coil inductance has been optimized for
linearity.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of 138th Audio Engineering Society Convention |
| Number of pages | 7 |
| Publisher | Audio Engineering Society |
| Publication date | 2015 |
| Article number | 9292 |
| Publication status | Published - 2015 |
| Event | 138th Audio Engineering Society Convention - Warsaw, Poland Duration: 7 May 2015 → 10 May 2015 Conference number: 138 |
Conference
| Conference | 138th Audio Engineering Society Convention |
|---|---|
| Number | 138 |
| Country/Territory | Poland |
| City | Warsaw |
| Period | 07/05/2015 → 10/05/2015 |