ATL HD 311

Data[edit]

General

  • Manufacturer: ATL
  • Model: HD 311
  • Years of manufacture: 1987-1989
  • Made in: Germany
  • Colors:
  • Dimensions 246 x 906 x 373 mm (W x H x D).
  • Weight:
  • Original price approx.: DM 1.100,--/piece


Technical Data

  • Type: 3-way with horn resonator
  • Chassis:
    • woofer: 2x 162 mm Westra SW 180-808, 8 Ohm

midrange: 87 mm Seas 10 F-M H084, 8 Ohm

    • tweeter: 28 mm modified Isophon KK10 fabric dome tweeter, 4 ohms.
  • Power handling (rated/music b.): 110 watts.
  • Efficiency:
  • Frequency response: 21 - 23,000 Hz.
  • Transitional ranges: 130 Hz (horn resonator)/1650/6100 Hz
  • Impedance: 6 Ohm


Special Features

  • Horn resonator
  • Acoustically Active crossover:
    • HT: 2nd order high pass, 3.3 uF | 0.15 mH
    • MT: 1st order high pass, 4.7 uF.
    • TT: low pass 1st order, approx. 0.9 mH

Remarks[edit]

Other models of the same series:


Images[edit]

Atlhd311.jpg

Reports[edit]

Links[edit]