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Where the figures for AMTPRO-4 come from

I take every figure from Dayton Audio's own product page or datasheet where I can. This lists where each figure on the AMTPRO-4 page came from.

  • 14 from Dayton Audio's product page
  • 2 from Dayton Audio's datasheet
  • 3 from NB Audio's listing

General

Driver type Tweeter NB Audio's listing
Nominal size 3.9x7.9" NB Audio's listing
Nominal impedance 4Ω Maker's product page
Series AMT NB Audio's listing
Power handling (RMS) 50 W Maker's product page
Power handling (program) 100 W Maker's product page
Sensitivity 94 dB Maker's product page
Frequency range 800 – 18,000 Hz Maker's product page

Thiele/Small parameters

DC resistance (Re) 3.96 Ω Maker's product page
Voice coil inductance (Le) 0.06 mH Maker's product page
Total Q (Qts) 4.12 Maker's product page
Effective piston area (Sd) 54.72 cm² Maker's product page

Mounting

Faceplate Rectangle, 100 × 200 mm Maker's datasheet
Cutout 72 × 172 mm Maker's datasheet
Mounting depth 36 mm Maker's product page
Weight 1.202 kg Maker's product page
Mounting holes 4 Maker's product page

Materials

Cone Kapton Maker's product page
Magnet Neodymium Maker's product page

Not on file: Fs, Vas, Xmax, Bl, Mms, Outside diameter, Bolt circle, Flange thickness. Either the maker doesn't publish it or I haven't found it yet.

What the labels mean

  • Maker's product page: copied from the maker's product page.
  • Maker's datasheet: read off the maker's own datasheet or drawing.
  • NB Audio's listing: how I've filed it in the store.

Check them yourself: Dayton Audio AMTPRO-4 Specification Sheet