Pro 18 in. 8 Ohm Neodymium Subwoofer Odeum 18N

Quick Overview

Live sound is back in business! Dayton Audio wants you to hit the road with confidence and maximize your profitability at your next gig. Dayton Audio is a worldwide leader in raw frame drivers. We are passionate audio enthusiasts with a vision to offer the best performance to price value in the industry. After extensive market research, vendor evaluation, and sample driver testing, we are proud to introduce to you the Dayton Audio ODEUM Series.

Product Highlights

  • Best 4” voice coil neodymium subwoofer value on the planet
  • Powerful neodymium motor for superior output
  • Well balanced SPL to Xmax ratio equates to a loud and long-throw sub
  • Copper inductance cap and aluminum demodulation ring for low distortion and low power compression
  • Robust 18” ribbed paper cone for strength and durability
  • Under spider and rear periphery venting allow for a cooler running voice coil

Product Manuals / Spec Sheets / Downloads

Dayton Audio Apollo 18N Specification Sheet
Dayton Audio Apollo 18N Data Files

Buying Options

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Dayton Audio Odeum Apollo 18N 18SW1200N-8 18" Professional Neodymium

ode· um | \ ō-ˈdē-əm: An ancient Greek and Roman concert hall used for music and poetry.

Using the knowledge from decades of driver design and engineering, Dayton Audio is placing an emphasis on technical excellence, product reliability, and innovation with the Odeum Series of speaker components! The Odeum Series takes the stage with a new line of professional drivers made for any venue.

Key Specs:

  • Nominal Diameter: 18"
  • Power Handling (RMS): 1200 Watts
  • Power Handling (MAX): 2400 Watts
  • Impedance: 8 Ω
  • Frequency Response: 35Hz - 1kHz
  • Sensitivity: 96.4 dB 2.83V/1m
  • Voice Coil Diameter: 4"
  • Maximum Linear Excursion: 9.1mm

Frequency Response & Impedance

The Dayton Audio Apollo 18N has a response that matches a large number of horn drivers and tweeters due to its high efficiency in the frequency range of human voices and midrange detail of stringed instruments. The impedance curve of the Apollo 18N makes it easy to pair up with your favorite compression driver without taxing your power amplifiers!

Apollo 18N

The Apollo 18N is an 18" subwoofer that is guaranteed to outperform the stock woofers in your PA system. A 1200W power limit is achieved through the combination of a large neodymium motor, a 4" voice coil with a fiberglass former, and a copper inductance cap to lower distortion. A paper cone with cloth M-roll surrounds provides a neutral tone that is easy to tune, and peripheral venting helps keep the whole system cool when playing!

A solution for every need

We feel we have hit the sweet spot in price and specs in the pro audio market with this workhorse line of subwoofers, midrange, and high-frequency drivers. The ODEUM series consist of two 1200W 18” subwoofers (one neodymium, one ceramic), 5 sizes and various power ratings of neodymium mid-bass, and two 1” exit compression drivers (one bolt-on, one screw-on). Upgrade, replace, or create a new pro sound system with the ODEUM series.

Speaker Series Odeum Series
Model Number Apollo 18N
Color Black
Unit of Measure Each
UPC 848791008528
Warranty - Parts 5 Years
Warranty - Labor 5 Years
Product Shipping Weight (lbs.) 17.6
Speaker Type Mid-Bass
Power Handling (RMS) 1,200 Watts
Power Handling (max) 2,400 Watts
Continuous Program Power --
Impedance 8 Ohms
Sensitivity 97 dB @ 2.83V/1m
Frequency Response 35 - 1,000 Hz
Voice Coil Diameter 101.6 mm
Magnet Weight --
DC Resistance (Re) 6.1 Ohms
Voice Coil Inductance (Le) 0.61 mH
Resonant Frequency (Fs) 32 Hz
Mechanical Q (Qms) 10.02
Electromagnetic Q (Qes) 0.35
Total Q (Qts) 0.33
Diaphragm Mass Inc. Airload (Mms) 217.8g
Moving Mass Of Diaphragm (Mmd) --
Mechanical Compliance of Suspension (Cms) 0.114 mm/N
Surface Area Of Cone (Sd) 1200 cm²
Volume of Displacement (Vd) 1092 cm³
BL Product (BL) 27.57 Tm
Compliance Equivalent Volume (Vas) 253.6 liters
Maximum Linear Excursion (Xmax) 9.1 mm
Drivers Mechanical Losses (Rms) --
Cone / Diaphragm Material Coated paper
Entry / Exit Diameter --
Surround Material Paper
Voice Coil Wire Material Copper
Voice Coil Former Fiberglass
Basket/Frame Material Steel
Magnet Material Neodymium
Overall Outside Diameter 462 mm
Overall Depth 183.5 mm
Baffle Cutout Diameter 414 mm
# Mounting Holes 8
Mounting Hole Diameter --
Bolt Circle Diameter --
Product Weight --