Tannoy Gold Crossover Electrical Response
(courtesy Bastien Bouchard, 19 January 2001)

These graghs represent the electrical response of a Tannoy Monitor Gold crossover ("crossover unit for LSU/HF/15/8" ) measured under speaker-load and at different points/settings.

The source was the pink noise track of a CD player feeding a Bryston BP20 integrated amp. The spectrum analysis is done with Spectra Plus analysis software via a DAT Recorder (used as an A/D stage) connected digitally with a Zephiro ZA2 digital PC sound card.

Above: Low-pass drive into LF unit

Above: High-pass output from first C-L section (prior to equalisation network)

Above: High-pass drive into HF-unit (controls set to FLAT)

Above: High-pass drive into HF-unit ("energy" control set to +2)

Above: High-pass drive into HF-unit ("energy" control set to -2)

Above: High-pass drive into HF-unit ("roll-off" control set to -2, energy set to "flat")

 

Tannoy 12" Gold: HF Driver Impedance
(courtesy David Meraner, dmeraner2@worldnet.att.net )

Since the electrical drive to the HF unit is affected by the impedance of the HF voice coil, a graph of this impedance versus frequency is also presented here. Similar results could be expected for the HF unit on the 15" Gold driver.

 

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