HP 30cm acoustic Eminence ACOUSTINATOR™ N2012
[ACOU N2012-8] Avis/Critiques Recommended for acoustic instrument applications in both sealed and vented
enclosures where a lightweight speaker would be
beneficial.
SPECIFICATION
Nominal Basket
Diameter 12", 304.8mm
Nominal Impedance* 8 ohms
Power
Rating
Watts 150W
Music Program
Resonance 31Hz
Usable Frequency Range 40Hz-3.5kHz
Sensitivity*** 94.7
Magnet Weight 4 oz.
Gap Height
0.28", 7.2mm
Voice Coil Diameter 2", 50.8mm
THIELE & SMALL
PARAMETERS
Resonant Frequency (fs) 31Hz
DC Resistance (Re) 7.03
Coil Inductance (Le) 0.59mH
Mechanical Q (Qms) 12.92
Electromagnetic Q (Qes) 0.54
Total Q (Qts) 0.52
Compliance Equivalent Volume (Vas) 177
liters / 6.25 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 203cc
Mechanical Compliance of Suspension (Cms) 0.46mm/N
BL
Product (BL) 12.1 T-M
Diaphram Mass inc. Airload
(Mms) 57 grams
Efficiency Bandwidth Product (EBP)
57
Maximum Linear Excursion (Xmax) 3.9mm
Surface Area of Cone (Sd) 519.5 cm2
Maximum Mechanical
Limit (Xlim) 8.0mm
MOUNTING INFORMATION
Recommended Enclosure
Sealed 28-50 liters/
1-1.75 cu.ft.
Vented 59.5-85 liters/ 2.1-3 cu.ft.
Overall Diameter 12.26", 311.4mm
Baffle Hole
Diameter 11", 279.5mm
Front Sealing Gasket fitted as
standard
Rear Sealing Gasket fitted as
standard
Mounting Holes Diameter 0.25", 6.4mm
Mounting Holes B.C. D. 11.71", 297.5mm
Depth 5.1",
130mm
Net Weight 4.3 lbs., 2 kg
Shipping
Weight 6 lbs., 2.7 kg
MATERIALS OF CONSTRUCTION
Coil Construction Copper voice coil
Coil Former
Polyimide former
Magnet Composition Neodymium
magnet
Core Details Non-vented core
Basket
Materials Pressed steel basket
Cone Composition
Polypropylene Cone
Cone Edge Composition Santoprene cone
edge
Dustcap Composition Solid composition felt dust
cap
FOOTNOTES
* Please consult
eminence.com for specifications of models with alternative impedances.
**
Multiple units exceed published rating evaluated under EIA 426A noise source and
test standard while in a free-air, non-temperature controlled environment.
*** The average output across the usable frequency range when applying 1W/1M
into the nominal impedance. Ie: 2.83V/8ohms, 4V/16ohms. Eminence response curves
are measured under the following conditions: All speakers are tested at 1w/1m
using a variety of test set-ups for the appropriate impedance | LMS using 0.25”
supplied microphone (software calibrated) mounted 1m from wall/baffle | 2ft. X
2ft. baffle is built into the wall with the speaker mounted flush against a
steel ring for minimum diffraction | Hafler P1500 Trans-Nova amplifier | 2700
cu.ft. chamber with fiberglass on all six surfaces (three with custom-made
wedges).
**** BETA 8CX, 10CX, 12CX and ACOUSTINATOR™ CX2008 are coaxial
speakers with tweeter sold separately. Published Usable Frequency response
contingent upon use of APT 50 HF Driver.
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