SB Acoustics SB12PACR25-4 Mid-range Woofer
SB Acoustics SB12PACR25-4 Mid-range Woofer
SB Acoustics SB12PACR25-4 Mid-range Woofer
SB Acoustics SB12PACR25-4 Mid-range Woofer
SB Acoustics SB12PACR25-4 Mid-range Woofer
SB Acoustics SB12PACR25-4 Mid-range Woofer
SB Acoustics SB12PACR25-4 Mid-range Woofer
SB Acoustics SB12PACR25-4 Mid-range Woofer

SB Acoustics SB12PACR25-4 Mid-range Woofer

SB Acoustics SB12PACR25-4 Mid-range Woofer

Ceramic cones offer smoothness and harmonic richness unavailable from conventional paper cone material. Ceramic materials also offer significantly higher stiffness numbers and slightly better internal losses than typical metals such as titanium or aluminum.

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SB Acoustics SB12PACR25-4 Mid-range Woofer

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Product description

Vented reinforced plastic chassis

Anodized aluminum cone

Low damping rubber surround

Large vented motor system

Long stroke linear suspension

Light-weight CCAW voice coil

Non-conducting fiberglass coil former

Non-resonant long life lead wires

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Product details

SB Acoustics SB12PACR25-4 4” Aluminium Cone Mid-range Woofer

The SB Acoustics SB12PACR25-4 is a 4 inch mid-range woofer with an aluminium cone. The SB12PACR25-4 uses a light-weight copper coated aluminium wire voice coil to create a responsive mid-range woofer. It also has a low Fs frequency which should allow for a low crossover point in a 3-way system. 

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Specifications

Article numberSB12PACR25-4
Woofer TypeMid-range woofer
Nominal Diameter4"
Power Handling (RMS)30 Watts
Impedance (Z)4 Ohms
Sensitivity (SPL at 1m / 2.83V)87 dB
Voice Coil Diameter25.4 mm
Magnet Weight400 g
DC Resistance (Re)3.1 Ohms
Voice Coil Inductance (Le)0.25 mH
Resonant Frequency (Fs)52.5 Hz
Mechanical Q (Qms)5.0
Electromagnetic Q (Qes)0.33
Total Q (Qts)0.31
Diaphragm Mass Inc. Airload (Mms)6.1 g
Mechanical Compliance of Suspension (Cms)1.5 mm/N
Surface Area of Cone (Sd)50 cm2
BL Product (BL)4.35 Tm
Compliance Equivalent Volume (Vas)5.3 Ltr
Maximum Linear Excursion (Xmax)5 mm
Driver's Mechanical Losses (Rms)0.4 kg/s
Cone / Diaphragm MaterialAluminium
Voice Coil Wire Materialcopper coated alumimium
Basket / Frame MaterialPlastic
Magnet MaterialFerrite
SB12PACR25-4
10 Items

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