Динамик НЧ Dayton Audio RS180-4 7" Reference Woofer 4 Ohm (пара, новые)

Очень хорошо подходят под midbass, как в авто так и домашнюю акустику.
www.parts-express.com/Dayton-Audio-RS180-4-7-Reference-Woofer-4-Ohm-295-374?quantity=1

Specifications:
Article number RS180-4
Woofer Series Reference Series
Woofer Type Midwoofer
Nominal Diameter 7"
Power Handling (RMS) 60 watts
Power Handling (max) 120 watts
Impedance (Z) 4 ohms
Sensitivity 89.2 dB 2.83V/1m
Frequency Response 39 - 3,600 Hz
Voice Coil Diameter 38 mm
DC Resistance (Re) 3.1 ohms
Voice Coil Inductance (Le) 0.45 mH 1 kHz
Resonant Frequency (Fs) 38.4 Hz
Mechanical Q (Qms) 2.13
Electromagnetic Q (Qes) 0.59
Total Q (Qts) 0.46
Diaphragm Mass Inc. Airload (Mms) 17.8g
Mechanical Compliance of Suspension (Cms) 0.97 mm/N
Surface Area of Cone (Sd) 124.7 cm²
Volume of Displacement (Vd) 74.8 cm³
BL Product (BL) 4.71 Tm
Compliance Equivalent Volume (Vas) 21.2 liters
Maximum Linear Excursion (Xmax) 6.0 mm
Cone / Diaphragm Material Black Anodized Aluminum Cone
Surround Material Rubber
Voice Coil Wire Material Copper
Voice Coil Former Aluminum
Basket / Frame Material Cast Aluminum
Magnet Material Ferrite
Overall Outside Diameter 180.5 mm
Overall Depth 82 mm
Baffle Cutout Diameter 146 mm
# Mounting Holes 6
Sealed Volume 0.42 ft.³
Sealed F3 69 Hz
Vented Volume 1.33 ft.³
Vented F3 35 Hz