Woofer Key features
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Proprietary Die Cast Aluminum Basket
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216 oz. Multisegment ND40 Neodymium Magnet
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Glasfiber Composite Cone with Stitched Surround
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Broad High Excursion Polyether Surround
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Laminated Nomex™ Quad Spider
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3 ½" BASV Voice-Coil Former
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CCA Wire Double Voice-Coil
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Tinsel Leadwires Stitched to Spider
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Faraday & Kellog Copper Rings
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CNC Machined Front Pole Plate
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Extended T-Yoke with Center Vent Hole
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Push Terminals for Large Diameter Wire
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NoMeX™ QuaD sPIDer
The E15NEO-COMP woofer deploys a 2 x 2 quad Nomex™ spider
of large diameter for unlimited cone excursion. The quad spider
provides perfect alignment of cone assembly with progressive deflec-
tion characteristics, to protect the surround from failure when the
cone assembly is driven to its mech. max.
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CCaW VoICe CoIL
A 4-layer wound double voice coil made of CCA-wire with large
winding height provides high thermal power handling and the
desired cone excursion necessary to win contests. CCAW voice coils
are lightweight and thus ideally suited being used on SPL competition
woofers. Less weight of cone/voice coil assembly directly translates into
higher efficiency.
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3½" BasV VoICe CoIL forMer
The voice coil former is made of laminated black anodized alumi-
num, with additional mechanical reinforcement of the neck area
above the coil windings.
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faraDay CoPPer rINGs
The copper rings added on top and around the center pole piece act
as Faraday & Kellog inductance break, stabilizing the magnetic field
and effectively counteracting the rising voice-coil impedance at hig-
her frequencies, while at the same time lowering total harmonic
distortion.
teChNICaL sPeCIfICatIoNs
Usable Frequency Response*
20 – 150 Hz
Continuous Power Handling*
2500 Wrms*
Peak Power Handling*
5 kW*
Nominal Impedance
2 x 2 Ohms
Voice Coil Diameter
3 ½" / 88.6 mm
Voice Coil Winding Height
45 mm
Magnetic Gap Height
25 mm
Total Weight Magnet Assembly
216 oz.
*Exact performance data depending upon actual enclosure!
thIeLe – sMaLL ParaMeters
Free-Air Resonance
(Fs)
28.0 Hz
DC Resistance
(Re)
2 x 1.74 Ohms
Electrical Damping
(Qes)
0.13
Mechanical Damping
(Qms)
2.24
Total Damping
(Qts)
0.12
Equivalent Volume of Compliance (Vas)
78.8 l
Moving Mass incl. Air Load
(Mms)
352.4 g
Electrically Limited Cone Excursion (Xmax)
20.0 mm (p-p)
Effective Cone Surface
(Sd)
780 cm²
Volume Displacement of Cone
(Vd)
1560 cm³
Voice Coil Inductance @ 1kHz
(Le)
2.00 mH (series)
Efficiency (2.00V)
(RefSPL)
93.5 dB/1W/1m
MouNtING DIMeNsIoNs
Mounting Cutout Diameter
358 mm
Rear Mounting Clearance
249 mm
e15sPL-CoMP Woofer
sPeCIfICatIoN sheet
Front Plate
Neo Magnet (6)
Top Copper Ring
Inner Copper Ring
Pole Piece
Back Plate
Assembly Screws
Magnet
Assembly
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Cast aLuMINuM BasKet
EMPASER’s proprietary cast aluminum basket line is overbuilt to offer
a truly solid and anti-resonant platform for the powerful magnet motor
assembly. The deep draw basket design enables huge cone travel to
both sides, due to increased distance between lower spider platform
and basket bottom.
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MuLtIseGMeNt ND40 NeoDyMIuM MaGNet
A six segment Neodymium magnet array with a total weight of 216
oz. forms the drive motor of the E15NEO-COMP. The open structure
of the magnet motor allows perfect cooling by increased airflow.
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GLasfIBer CoMPosIte CoNe
The E15NEO-COMP woofer deploys a composite glasfiber cone of
highest stiffness and lowest weight, for extremely low cone flex at
high SPL levels. The surround is stitched to the cone preventing any
unnecessary strain on the joint, that bonds the surround to the
cone.
