Isophon HSB 20/8 specifications

Category : Speakers

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Tech nical data

1 Assembly corresponds to the HSB 20/8 T version from about 1968, earlier versions may differ

Special equipment

Other models of the same series:

• Manufacturer: Isophon
• Model: HSB 20/8 ( = 20 W / 8 Ohm )
• Years of construction: approx. 1965 - 1970
• Manufactured in: Germany
• Color: Walnut veneer
• Dimensions: 620 x 280 x 260 mm (W x H x D)
• Weight: 12.2 kg
• Factory price approx.: 320,- DM per piece (1969 )

• Type of construction: 3-way shelf speaker, closed
• Chassis:
  • Low Midrange: 1 PSL 203 S (203 mm chassis Ø) 1
  • Midrange: 1 HMS 1318/120 (Oval wideband LS, chassis 130x180 mm) 1
  • Midrange: 1 HM 713 (Oval broadband LS, chassis 70x130 mm) 1
• Load capacity (nominal/musical b.): 20/50 Watt
• Efficiency: unknown, but very high thanks to AlNiCo magnets and 1st order switches
• Frequency response: 40 - 20,000 Hz
• Transition range: 1200 Hz
• Impedance: 8 ohms

• Low midrange: 1 PSL 203 S (203 mm chassis Ø) 1
• Midrange: 1 HMS 1318/120 (Oval wideband LS, chassis 130x180 mm) 1
• Midrange: 1 HM 713 (Oval wideband LS, chassis 70x130 mm) 1

• The standard version is the variant with a slotted front panel, the version "T" described here has a textile cover
• Fixed cable with DIN connector
• to open the housing from the back side

• HSB 20 with 5 ohms and presence switch (~1963)
• HSB 30/8
• HSB 45/8

Comment:

Comment box:

Isophon HSB 20/8 relate

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