ADR Loudspeaker Boxes

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Data[edit]

ADR (Audio Design Research)

  • Vifa System Loudspeaker
  • (all data per speaker except prices)


ADR Impulse

  • 2 way bass reflex system
  • power handling: 80 Watt according to DIN, 150 Watt impulse
  • Impedance: 8 Ohm
  • Efficiency: 85 dB/1/1m
  • frequency range: 45 - 35.000 Hz
  • Size: HxWxD. 35,8 x 23,8 x 27,8 cm
  • purchase value: sound and manufacturing quality very good
  • Price-independent sound rating: Upper Middle Class II Reference


ADR Correct

  • 2 way bass reflex system
  • power handling: 80 watts DIN, 120 watts impulse
  • Impedance: 8 Ohm
  • Efficiency: 87 dB/1/1m
  • Frequency range: 45 - 25.000 Hz
  • Size: HxWxD. 83,1 x 21,0 x 22,6 cm
  • Price 1989 kit: 500,- DM (with crossover and damping wool, pair)
  • New price 1989 cabinet: 240,- DM ( MDF raw, pair )


ADR Filigree

  • 2 way bass reflex system
  • Power handling: 100 Watt according to DIN, 150 Watt impulse
  • Efficiency: 90 dB/1/1m
  • Impedance: 8 Ohm
  • Frequency range: 40 - 25.000 Hz
  • Size: HxWxD. 88,2 x 24,7 x 26,8 cm
  • Rating 'Klang&Ton' 1988: Price/sound ratio very good
  • Equipment:

tweeter: 1x Vifa HT 275 (Denmark) Bass: 1x Vifa 21 WP 250 "

  • Original price 1989 kit: 700,- DM (with crossover and damping wool, pair)
  • new price 1989 cabinet: 280,- DM ( MDF raw, pair )


ADR Vivace

  • 3 way bass reflex system
  • Power handling: 150 watts according to DIN, 250 watts impulse
  • Impedance: 8 Ohm
  • Efficiency: 89 dB/1/1m
  • Frequency range: 35 - 25.000 Hz
  • Size: HxWxD. 96,9 x 31,8 x 28,8 cm
  • Price per pair 1990: DM 1100 (kit)
  • Rating 'Stereoplay' 1988: sound and manufacturing quality: very good
  • price-independent sound rating: top class IV reference
  • Equipment:

tweeter: 1x Vifa HT 275 (Denmark) midrange: 1x Vifa DM 760 " Bass: 1x Vifa 25 WP 250 "

  • new price 1989 kit: 1100,- DM (with crossover and damping wool, pair)
  • new price 1989 cabinet: 440,- DM ( MDF raw, pair )


ADR Format

  • 3 way double bass reflex system
  • Power handling: 150 Watt according to DIN, 250 Watt impulse
  • Impedance: 4 Ohm
  • Efficiency: 90 dB/1 W/1m
  • Frequency range: 30 - 35.000 Hz
  • Size: HxWxD. 104,4 x 29,4 x 36,4 cm
  • Equipment:
    • tweeter: 1x Vifa HT 300 (Denmark)

midrange: 1x Vifa DM 500s " Bass: 2x Vifa 21 WP 250/8 "

  • Rating 'Stereoplay' 1989: top class III
  • Sound and manufacturing quality: very good
  • Price for new kit 1989: 1200,- DM


ADR Basis 2.0

  • 5 (more likely 4) ways bass reflex system
  • Power handling: 300 Watt according to DIN, 500 Watt impulse
  • Impedance: 4 Ohm
  • efficiency: 89 dB/1 W/1m
  • frequency range: 25 - 25,000 Hz
  • Size: HxWxD. 130.0 x 30.8 x 42.0 cm
  • Rating 'Stereoplay' 1988: top class II
  • Sound: good to very good
  • Manufacturing quality: very good
  • Price for new kit 1989: 2200,- DM (with crossover and damping wool, pair)
  • New price cabinet 1989: 780,- DM ( MDF raw, pair )


ADR Stereoplay STP 170

  • 2 way bass reflex system
  • Rated power: 200 watts
  • Sensitivity: 86 dB (1Watt/1m)
  • Impedance: 4 Ohm
  • Sound pressure max: 105 dB, 1m
  • Dimensions: HxWxD. 106,0 x 25,0 x 33,0 cm
  • Equipment:

Tweeter: 1x WHD Cal stp (Germany) Bass: 2x Vifa 17 WP 200 (Denmark)

  • new kit price 1991: 1200,- DM (with crossover and damping wool, pair)
  • new price cabinet 1991: 600,- DM ( MDF raw, pair )


ADR Stereoplay STP 250

  • 3 way double bass reflex system
  • Rated power: 300 watts
  • Sensitivity: 90 dB (1 Watt/1 m)
  • Impedance: approx. 3-16 Ohm
  • Sound pressure max: 112 dB, 1m
  • Frequency response approx.: 35 - 20,000 Hz
  • Dimensions: HxWxD. 144,0 x 33,0 x 46,0 cm
  • Weight: piece around 55-60 Kg (material thickness 19-22 mm MDF)
  • Box consists of 3 airtight chambers
  • Equipment:

Tweeter: 1x WHD Cal stp (Germany) midrange: 2x Seas MP 14 RCY (Norway)

    • bass: 2x Vifa 25 WP 250 (Denmark)
  • new kit price 1991: 2800,- DM ( with crossover and damping wool, pair )
  • new price cabinet 1991: 1150,- DM ( MDF raw, pair )

(subject to change)

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