Difference between revisions of "Universum System 7500 SL (V 2315)"

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Dieser Verstärker (V 2315) ist Bestandteil des Universum Systems Hifi 7500 SL, er stand 1981 erstmals zum Verkauf. Zusätzlich angeboten wurden im abgestimmten Design ein Tuner, ein Plattenspieler sowie Tape Decks in unterschiedlichen Varianten.  
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This amplifier (V 2315) is part of the Universum System Hifi 7500 SL, it was first offered for sale in 1981. In addition, a tuner, a record player and tape decks in different versions were offered in a coordinated design.  
  
Der Verstärker wurde damals in zwei unterschiedlichen Varianten hergestellt. Die erste Version verfügte über eine Raumklang-Einrichtung,  mit Hilfe derer ein sogenannter "4D-Quadro Raumklang" erzeugt werden konnte. Neben der üblichen Stereo-Lautsprecher wurden hierfür zwei rückwärtige Effektlautsprecher benötigt.
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The amplifier was produced in two different versions at that time. The first version had a surround sound facility, with the help of which a so-called "4D-Quadro surround sound" could be produced. In addition to the usual stereo speakers, two rear effect speakers were needed for this.
Eine spätere Version dieses Verstärkers hatte diese Raumklangfunktion nicht mehr, statt dessen wurde eine "Mute-Funktion" in das Gerät implementiert.  
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A later version of this amplifier no longer had this surround sound function, instead a "mute function" was implemented in the device.  
  
Besondere Kennzeichen dieses Gerätes waren seine flüssigkeitsgekühlte Endstufe(Heat-Pipe), eine massive Front aus Aluminium, sowie ein vergleichsweise flaches Gehäusedesign. Vermutlich steht in diesem Zusammenhang der Namenszusatz "SL", der in der damaligen Werbung zu dieser Serie als "Slim-Line" bezeichnet wurde.
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Special features of this device were its liquid-cooled power amplifier (heat pipe), a massive front made of aluminium, as well as a comparatively flat housing design. Presumably this is the reason for the name "SL", which was called "Slim-Line" in the advertising for this series at that time.
  
[[bild:V 2315 - UNIVERSUM 7500 SL.jpg]]
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[[image:V 2315 - UNIVERSUM 7500 SL.jpg]]
  
  
'''Technische Daten:'''
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'''Technical data:'''
  
Nennleistung bei 1 KHz: min. 2x60 Watt an 4 Ohm
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Rated power at 1 KHz: min. 2x60 Watt into 4 Ohm
  
Musikleistung: min. 2x100 Watt
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Music power: min. 2x100 Watt
  
Klirrfaktor bei Nennleistung: 0,5%
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Distortion factor at nominal power: 0.5%
  
Intermodulation: 0,1 bei Vollausteuerung nach DIN 45403 (250 HZ + 8 kHz, 4:1)
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Intermodulation: 0.1 at full modulation according to DIN 45403 (250 HZ + 8 kHz, 4:1)
  
Lautsprecherdämpfungsfaktor: 20
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Loudspeaker damping factor: 20
  
Lautsprechermindestimpedanz (Anschlusswert): 4 Ohm
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Minimum speaker impedance (connected load): 4 Ohm
  
Übertragungsbereich: 20 Hz bis 40 KHz
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Frequency response: 20 Hz to 40 KHz
  
Leistungsbandbreite: 30 Hz bis 40 KHz
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Power bandwidth: 30 Hz to 40 KHz
  
Übersprechdämpfung zwischen den beiden Kanälen: 45 dB bei 1 KHz, 35 dB von 250 bis 10 000 Hz
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Crosstalk attenuation between the two channels: 45 dB at 1 KHz, 35 dB from 250 to 10 000 Hz
  
Übersprechdämpfung zwischen den versch. Eingängen: 55 dB bei 1000 Hz, 45 dB von 250 bis 10 000 Hz
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Crosstalk attenuation between the different inputs Crosstalk attenuation between the different inputs: 55 dB at 1000 Hz, 45 dB from 250 to 10 000 Hz
Gleichlauf des NF-Teil (linker/rechter Kanal): kleiner 2 dB
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Synchronisation of the AF section (left/right channel): less than 2 dB
  
Fremdspannungsabstand für Nennleistung: 74 dB
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External voltage spacing for nominal power: 74 dB
  
Fremdspannungsabstand für 50 mW: 60 dB
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External voltage spacing for 50 mW: 60 dB
  
  
'''Regelbereiche:'''
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'''Control ranges:'''
  
Höhenregler: + 10, - 10 dB bei 10 KHz
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Treble control: + 10, - 10 dB at 10 KHz
  
Tiefenregeler: + 10, - 10 dB bei 100 Hz
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Bass control: + 10, - 10 dB at 100 Hz
  
Balanceregler: - 40 dB
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Balance control: - 40 dB
  
  
'''Eingangsempfindlichkeit und Impedanz bei 1 KHz für Nennleistung:'''
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'''Input sensitivity and impedance at 1 KHz for nominal power:'''
TB/Monitor: 350 mV/500 kOhm
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TB/monitor: 350 mV/500 kOhm
  
Magnet-TA: 3,5 mV/50 kOhm
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Magnet TA: 3.5 mV/50 kOhm
  
Dynam.-TA: 0,2 mV/0,1 kOhm
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Dynamic TA: 0.2 mV/0.1 kOhm
  
 
Tuner: 350 mV/500 kOhm
 
Tuner: 350 mV/500 kOhm
  
  
'''Max. Eingangsspannung:'''
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'''Max. Input voltage:'''
  
TB/Monitor: 5 V
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TB/monitor: 5 V
  
Magnet-TA: 50 mV
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Magnet TA: 50 mV
  
Dynamik-TA: 5 mV
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Dynamic TA: 5 mV
  
 
Tuner: 5 V
 
Tuner: 5 V
  
  
'''Ausgangsspannungen und Impedanz:'''
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'''Output voltages and impedance:'''
  
TB: 1 mV an 1 kOhm
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TB: 1 mV at 1 kOhm
  
Kopfhörer: 400 mW an 220 Ohm
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Headphones: 400 mW into 220 ohms
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[[Category:Integrated amplifier]]

Latest revision as of 05:05, 2 April 2009

This amplifier (V 2315) is part of the Universum System Hifi 7500 SL, it was first offered for sale in 1981. In addition, a tuner, a record player and tape decks in different versions were offered in a coordinated design.

The amplifier was produced in two different versions at that time. The first version had a surround sound facility, with the help of which a so-called "4D-Quadro surround sound" could be produced. In addition to the usual stereo speakers, two rear effect speakers were needed for this. A later version of this amplifier no longer had this surround sound function, instead a "mute function" was implemented in the device.

Special features of this device were its liquid-cooled power amplifier (heat pipe), a massive front made of aluminium, as well as a comparatively flat housing design. Presumably this is the reason for the name "SL", which was called "Slim-Line" in the advertising for this series at that time.

V 2315 - UNIVERSUM 7500 SL.jpg


Technical data:

Rated power at 1 KHz: min. 2x60 Watt into 4 Ohm

Music power: min. 2x100 Watt

Distortion factor at nominal power: 0.5%

Intermodulation: 0.1 at full modulation according to DIN 45403 (250 HZ + 8 kHz, 4:1)

Loudspeaker damping factor: 20

Minimum speaker impedance (connected load): 4 Ohm

Frequency response: 20 Hz to 40 KHz

Power bandwidth: 30 Hz to 40 KHz

Crosstalk attenuation between the two channels: 45 dB at 1 KHz, 35 dB from 250 to 10 000 Hz

Crosstalk attenuation between the different inputs Crosstalk attenuation between the different inputs: 55 dB at 1000 Hz, 45 dB from 250 to 10 000 Hz Synchronisation of the AF section (left/right channel): less than 2 dB

External voltage spacing for nominal power: 74 dB

External voltage spacing for 50 mW: 60 dB


Control ranges:

Treble control: + 10, - 10 dB at 10 KHz

Bass control: + 10, - 10 dB at 100 Hz

Balance control: - 40 dB


Input sensitivity and impedance at 1 KHz for nominal power: TB/monitor: 350 mV/500 kOhm

Magnet TA: 3.5 mV/50 kOhm

Dynamic TA: 0.2 mV/0.1 kOhm

Tuner: 350 mV/500 kOhm


Max. Input voltage:

TB/monitor: 5 V

Magnet TA: 50 mV

Dynamic TA: 5 mV

Tuner: 5 V


Output voltages and impedance:

TB: 1 mV at 1 kOhm

Headphones: 400 mW into 220 ohms