The Dayton Audio ND105-PR 4" passive radiator makes it easy to tune small
enclosures lower without increasing overall enclosure size. With a one-piece
aluminum cone, rubber surround, high excursion capability, and easily adjustable
mass, this passive radiator is perfect for building extremely compact speaker
systems capable of incredible low frequency output.
Highlights
Rigid black anodized aluminum alloy cone
High excursion capability: 12 mm peak to peak
Same "family look" as ND Series woofers
Adjustable mass for a vast range of tuning frequencies
Dayton Audio ND105-PR 4" Aluminum Cone Passive Radiator
Tune small enclosures with Dayton Audio's ND105-PR 4" passive radiator in
speaker designs where a conventional port is not a viable option. This compact
passive radiator includes all of the features you expect with larger radiators
including high excursion capability, aluminum cone, rubber surround, and
adjustable mass. Visually identical to Dayton Audio's popular ND series drivers,
the ND105-PR can be used with any small speaker. The threaded rod and included
wing nut on the back of the cone makes it easy to add mass to tune the radiator
as needed for your projects. Whether you are building a multi-driver array,
sound bar, or portable Bluetooth speaker, the Dayton Audio ND105-PR introduces a
new range of possibilities.
The ND105-PR 4" passive radiator includes:
(1) Passive radiator
(1) 21.8 gram disk weights
(1) Wing nut
Specifications:
• Fs: 51.5 Hz
• Vas: 0.09 cu. ft. (2.6 liters)
• Qms: 5.93 • Cms: 0.68 mm/N
• Mms: 13.9g • Rms: 0.76 kg/s
• Sd: 51.5 sq. cm.
• Xmech: 6 mm
• Dimensions: Overall diameter: 4.13", Cutout diameter: 3.66", Depth:
2.64".
Thiele-Small Parameters
Resonant Frequency (Fs) - 51.5 Hz
Mechanical Q (Qms) - 5.93
Compliance Equivalent Volume (Vas) - 0.09 ft.³
Mechanical Compliance of Suspension (Cms) - 0.68 mm/N
Diaphragm Mass Inc. Airload (Mms) - 13.9g
Maximum Linear Excursion (Xmax) - 6 mm
Surface Area of Cone (Sd - )51.5 cm²
Materials of Construction
Cone Material - Aluminum
Surround Material - Rubber
Basket / Frame Material - Steel
Mounting Information
Overall Outside Diameter - 4.13"
Baffle Cutout Diameter - 3.66"
Depth - 2.64"
# Mounting Holes - 4