ADR Loudspeaker Boxes

Data

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)

Pictures