Eminence ESP 18 A / 18" Bass aus der Sigma Pro Series / 1 Paar / NOS

1 Paar neue Eminence ESP 18 A Sigma Pro Series aus NOS/Lagerbestand. 18"/46cm. OVP. Wird nicht mehr gebaut. Hoher Wirkungsgrad, hoch belastbar. ex-Listenpreis: 824€/Paar.

Technik:

SPECIFICATION

• Nominal Basket Diameter 18“, 457.2 mm
• Nominal Impedance 8 ohms
• Power Rating Watts 650 W / Music Program 1300 W
• Resonance 28 Hz
• Usable Frequency Range 41 Hz – 2.4 kHz
• Sensitivity 99
• Magnet Weight 120 oz.
• Gap Height 0.375“, 9.53 mm
• Voice Coil Diameter 3“, 76.2 mm

THIELE & Small Parameters

• Resonant Frequency (fs) 28 Hz
• DC Resistance (Re) 6.29
• Coil Inductance (Le) 1.90 mH
• Mechanical Q (Qms) 8.28
• Electromagnetic Q (Qes) 0.30
• Total Q (Qts) 0.29
• Compliance Equivalent Volume (Vas) 441.2 liters / 15.6 cu. ft.
• Peak Diaphragm Displacement Volume 695 cc
• Mechanical Compliance of Suspension (Cms) 0.24 mm/N
• BL Product (BL) 22.1 T-M
• Diaphragm Mass inc. Airload (Mms) 130 grams
• Efficiency Bandwidth Product (EBP) 93
• Maximum Linear Excursion (Xmax) 6.1 mm
• Surface Area of Cone (Sd) 1140.0 cm²
• Maximum Mechanical Limit (Xlim) 18.0 mm

MOUNTING Information

• Recommended Enclosure Volume
  Sealed N/A
  Vented 93-212 liters/3.3-7.5 cu.ft.
• Overall Diameter 18“, 457.2 mm
• Baffle Hole Diameter 16.56“, 420.5 mm
• Front Sealing Gasket fitted as standard
• Rear Sealing Gasket fitted as standard
• Mounting Holes Diameter 0.28“, 7.1 mm
• Mounting Holes B.C.D. 17.25“, 438.2 mm
• Depth 8.15“, 207 mm

MATERIALS of Construction

• Copper voice coil
• Polyimide former
• Ferrite magnet
• Vented and extended core
• Die-cast aluminum basket
• Paper Cone
• Cloth cone edge
• Solid composition paper dust cap