IQ 5180 AT specifications

Category : Speakers

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Tech nical data

Tech nical data Tweeter

Special features

Other models of the same series:

Audio 10/1987

Upper class 3 ears

Total points 63

• Type of construction: 4-way TL Reson ator floorstanding speaker
• Chassis:
  • Woofer: 250 mm (Vifa M25WO-39-08)
  • Low midrange: Vifa M21WJ-49 -08
  • Midrange: 75 mm dome (Vifa D75MX-30-08)
  • Tweeter: 25 mm dome, SEAS 25 TAFC/D H0537 (no longer available)
    • possible replacement domes: SEAS 27 TFF (H 831) or

• Low frequency: 250 mm (Vifa M25WO-39-08)
• Low midrange: Vifa M21WJ-49-08
• Midrange: 75 mm Dome (Vifa D75MX-30-08)
• High frequency: 25 mm dome, SEAS 25 TAFC/D H0537 (no longer available)
  • possible replacement domes: SEAS 27 TFF (H 831) or

• possible replacement calottes: SEAS 27 TFF (H 831) or

• Load capacity (nominal/musical b.): 150/250 Watts
• Efficiency:
• Frequency response: 22 - 24,000 Hz
• Transition ranges: (for LS with multiple chassis)
• Impedance: 4 Ohm s

• Original tweeter SEAS 25 TAFC/D H0537
  • Outer diameter: 110 mm< /li>
  • Installation diameter: 74.8 mm
  • Installation depth (incl. Front): 41.5mm
  • Front panel thickness: 3.6mm
  • Impedance: 8 Ohm s
  • Sound pressure: 90 dB SPL
  • Frequency range: 2-25 kHz
  • Reson ant frequency: 1200 Hz
  • Rated load: 90 W (IEC 268-5, VIA HIGH PASS BUTTERWORTH FILTER: 3000 Hz 12 dB/oct.)
  • Max. Power rating (short time)220 W (IEC 268-5, VIA HIGH PASS BUTTERWORTH FILTER: 3000 Hz 12 dB/oct.)
  • DC Resistance: 4.8 ohm
  • Voice coil Inductance: 0.05mH
  • Linear deflection Xmax: 0.5mm
  • Magnet diameter: 74.8mm
  • Effective diaphragm area: 7.0 qcm
  • Air gap height: 2.0mm
  • Flux density: 1.8 T
  • Force factor (F/I): 3.5 N/A
  • Voice coil diameter: 26 mm
  • Voice coil height: 1.5 mm
  • Moving mass incl. Air Load: 0.33 g
  • Membrane Material: Aluminum
  • Magnetic Weight: 0.25 Kg
  • Total Weight: 0.50 Kg
    • Source: SEAS Fabrikker AS, Norway

Outer Diameter: 110 mm
• Installation diameter: 74.8 mm
• Installation depth (incl. Front): 41.5mm
• Front panel thickness: 3.6mm
• Impedance: 8 Ohm s
• Sound pressure: 90 dB SPL
• Frequency range: 2-25 kHz
• Reson ant frequency: 1200 Hz
• Rated load: 90 W (IEC 268-5, VIA HIGH PASS BUTTERWORTH FILTER: 3000 Hz 12 dB/oct.)
• Max. Power rating (short time)220 W (IEC 268-5, VIA HIGH PASS BUTTERWORTH FILTER: 3000 Hz 12 dB/oct.)
• DC Resistance: 4.8 ohm
• Voice coil Inductance: 0.05mH
• Linear deflection Xmax: 0.5mm
• Magnet diameter: 74.8mm
• Effective diaphragm area: 7.0 qcm
• Air gap height: 2.0mm
• Flux density: 1.8 T
• Force factor (F/I): 3.5 N/A
• Voice coil diameter: 26 mm
• Voice coil height: 1.5 mm
• Moving mass incl. Air load: 0.33 g
• Membrane material: Aluminum
• Magnetic weight: 0.25Kg
• Total weight: 0.50Kg
  • Source: SEAS Fabrikker AS, Norway

• Source: SEAS Fabrikker AS, Norway

• Possible replacement calotte: SEAS 27 TFF (H 831) (Differences in bold)
  • Outer diameter: 110 mm
  • Installation diameter: 74.8 mm
  • Installation depth (incl. Front): 27.5mm
  • Front panel thickness: 3.5mm
  • Impedance: 6 Ohm s
  • Sound pressure: 92 dB SPL
  • Frequency range: 2-25 kHz
  • Reson ant frequency: 1200 Hz
  • Rated load: 90 W (IEC 268-5, VIA HIGH PASS BUTTERWORTH FILTER: 2500 Hz 12 dB/oct.)
  • Max. Power rating (short time)220 W (IEC 268-5, VIA HIGH PASS BUTTERWORTH FILTER: 2500 Hz 12 dB/oct.)
  • DC Resistance: 4.8ohm
  • Voice coil Inductance: 0.05mH
  • Linear deflection Xmax: 0.5mm
  • Magnet diameter: 73.0mm
  • Effective diaphragm area: 7.5 qcm
  • Air gap height: 2.0mm
  • Flux density: 1.8 T
  • Force factor (F/I): 3.5 N/A
  • Voice coil diameter: 26 mm
  • Voice coil height: 1.5 mm
  • Moving mass incl. Air load: 0.30 g
  • Membrane Material: Fabric membrane
  • Magnet Weight: 0.25Kg
  • Total Weight: 0.50 Kg
  • Cost: approx. 40.00 Euro
    • Source: SEAS Fabrikker AS, Norway
• Outer diameter: 110 mm
• Installation diameter: 74.8 mm
• Installation depth (incl. Front): 27.5mm
• Front panel thickness: 3.5mm
• Impedance: 6 Ohm s
• Sound pressure: 92 dB SPL
• Frequency range: 2-25 kHz
• Reson ant frequency: 1200 Hz
• Rated load: 90 W (IEC 268-5, VIA HIGH PASS BUTTERWORTH FILTER: 2500 Hz 12 dB/oct.)
• Max. Power rating (short time)220 W (IEC 268-5, VIA HIGH PASS BUTTERWORTH FILTER: 2500 Hz 12 dB/oct.)
• DC Resistance: 4.8ohm
• Voice coil Inductance: 0.05mH
• Linear deflection Xmax: 0.5mm
• Magnet diameter: 73.0mm
• Effective diaphragm area: 7.5 qcm
• Air gap height: 2.0mm
• Flux density: 1.8 T
• Force factor (F/I): 3.5 N/A
• Voice coil diameter: 26 mm
• Voice coil height: 1.5 mm
• Moving mass incl. Air load: 0.30 g
• Membrane material: Fabric membrane
• Magnet weight: 0.25Kg
• Total weight: 0.50 Kg
• Cost: approx. 40.00 Euro
  • Source: SEAS Fabrikker AS, Norway
• Source: SEAS Fabrikker AS, Norway
List here
• 2140 AT
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• 4180 AT
• 5180 AT





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