Is that just a pointy metal cap on this thing or is it a tuned phase plug?

It is a tuned phase plug, like all midrange and midbass drivers from the Dayton RS range. It's certainly not a dust cap. A dust cap moves with the cone. A phase plug is fixed to the magnet assembly and basket, and does not move.

What's the stated frequency response?

Spec: http://www.daytonaudio.com/index.php/rs100-4-4-reference-full-range-driver-4-ohm.html Impedance 4 ohms Sensitivity 87.5 dB @ 2.83V/1m Frequency Response 80 - 20,000 Hz Voice Coil Diameter 25 mm Magnet Weight -- DC Resistance (Re) 3 ohms Voice Coil Inductance (Le) 0.28 mH @ 1 kHz Resonant Frequency (Fs) 84.8 Hz

Is this price per speaker?

Price as shown for each speaker (plus shipping if applicable). ♫

What is the exact minimum and maximum width of the face in inches?

If your asking about the dimensions of the speaker box face, the smaller the better, to minimize reflected sound. I picked these drivers to make a full range (no crossover) transmission line. They are mounted vertically at the top of 4 Ft' long wool lined boxes, Apx. 5" square. They play into a wooden cone mounted slightly above the drivers, which creates a 360o sound-field. The boxes are slotted at the bottom rear (about the size of the cone area) which enhances the bass by using the rooms corner walls. Over the years I have built Bass Reflex, Dancing woofer pairs, Di Eppilito configurations, and Folded horns. All of which was to achieve high sound pressure levels. The goal in this case was to try to achieve an undistorted, full sound spectrum, at moderated sound levels with a single driver.. These small drivers certainly filled the bill, and I feel one would have to spend significantly more money to attain a better sound using only a full range driver. Hope this helps.

Dayton Audio Rs100 4 4 Reference Full Range Driver 4

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Description

🎵 Elevate your sound game with compact clarity and bass that punches above its weight!

BUILT TO LAST - Heavy-duty 6-hole cast aluminum frame guarantees durability for your DIY speaker projects.
COMPACT POWERHOUSE - 4" full-range driver delivers crisp highs and rich mids in a sleek form factor.
BASS THAT SURPRISES - Long-excursion motor with low-loss rubber surround pumps out impressive bass for its size.
DIY DREAM COMPONENT - Perfectly sized and engineered for custom portable or home audio builds that stand out.
PRECISION SOUND CLARITY - Low-distortion motor system ensures every note is crystal clear, no fuzz, no noise.

The Dayton Audio RS100-4 is a 4-inch, 4-ohm full-range driver designed for audiophiles and DIY enthusiasts seeking clear, distortion-free sound across a wide frequency range. Its robust cast aluminum frame and long-excursion motor deliver durability and surprisingly deep bass, making it ideal for compact speaker builds and smart audio projects.

Specifications

ASIN	B00JZTE00I
Best Sellers Rank	#50,250 in Electronics ( See Top 100 in Electronics ) #459 in Car Coaxial Speakers
Color	Black
Connectivity technologies	wireless
Customer Reviews	4.3 4.3 out of 5 stars (74)
Date First Available	April 30, 2008
Is Discontinued By Manufacturer	No
Item Weight	1.34 pounds
Item model number	RS100-4
Manufacturer	Dayton Audio
Other display features	Wireless
Product Dimensions	4.17 x 4.09 x 3.39 inches

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Dayton Audio RS100-4 4" Reference Full-Range Driver 4 Ohm

Description

Specifications

Common Questions