Difference between revisions of "Threshold Model 400a"
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== Daten ==
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== Dates ==
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'''Allgemein'''
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'''General'''
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* Hersteller:[[Threshold]]
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* Manufacturer:[[Threshold]]
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* Modell:400A  
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* Model:400A  
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* Abmessungen: 48.26 cm W x 39 cm H x 28 cm D  
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* Dimensions: 48.26 cm W x 39 cm H x 28 cm D  
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* Gewicht: 23 kg  
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* Weight: 23 kg  
  
  
  
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'''Anschlüsse'''
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'''Connections'''
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* hier die Anschlussmöglichkeiten aufführen, falls bekannt.  
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* list the connection options here, if known.  
  
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'''Technische Daten'''
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'''Technical Data'''
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*Nennleistung:  
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*Nominal power:  
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**100 Watt pro Kanal, beide Kanäle an 8 Ohm, 20 Hz bis 20 kHz bei 120 Volt angetrieben Line-Quelle.  
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**100 watts per channel, both channels into 8 ohms, 20 Hz to 20 kHz at 120 volts powered Line source.  
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*Harmonisch und Intermodulation Distortion:  
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*Harmonic and Intermodulation Distortion:  
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**nicht größer als 1 Prozent, Total Harmonic oder Intermodulationsverzerrungen bei Nennleistung, sinkend monoton mit geringerer Leistung. Verzerrung praktisch unermesslich bei kleinen Pegeln. Klirrfaktor Komponenten werden von der 2. und 3. Harmonischen dominiert. Intermodulation Seitenbänder 1. und 2. Ordnung. Verzerrungskomponenten höherer Ordnung sind vernachlässigbar unter 40 kHz.
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**Not greater than 1 percent, Total Harmonic or Intermodulation distortion at rated power, decreasing monotonically with lower power. Distortion virtually immeasurable at low levels. Distortion components are dominated by 2nd and 3rd harmonics. Intermodulation sidebands 1st and 2nd order. Higher order distortion components are negligible below 40 kHz.
 
*TID:
 
*TID:
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**Transient Intermodulationsverzerrungen Seitenbänder sind mindestens-75dB unterhalb eines 10 Watt Ausgangssignal, bestehend aus einem 1,5 kHz Sinus linear mit -20 dB 80 kHz Sinus gemischt. die Seitenbänder sind über die zentrale abnehmender Häufigkeit auf etwa -90 dB durch das siebte um symmetrisch.
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**Transient intermodulation distortion sidebands are at least-75dB below a 10 watt output signal consisting of a 1.5 kHz sine linearly mixed with -20 dB 80 kHz sine. the sidebands are symmetrical about the central decreasing in frequency to about -90 dB by the seventh order.
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*Anklingzeit:  
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*Ancillation time:  
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**Vorder-und Hinterkante 1 Mikrosekunde.
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**Front and back edge 1 microsecond.
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*Anstiegsrat Kapazitäten:  
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*Rate of rise Capacities:  
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**Maximale Spannung Schwenkerate jedes Kanals 50 Volt pro Mikrosekunde. Maximaler Stromverbrauch Schwenkenrate jedem Kanal 25 Ampere pro Mikrosekunde.  
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**Maximum voltage slew rate of each channel 50 volts per microsecond. Maximum current consumption slew rate each channel 25 amps per microsecond.  
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*Loop-Laufzeit:  
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*Loop Run Time:  
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**Signallaufzeit erscheinen an der Basis der Eingangs-Differential-Transistoren 20 Mikrosekunden.  
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**Signal propagation time appear at base of input differential transistors 20 microseconds.  
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*Stromausgang Kapazitäten:  
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*Current Output Capacities:  
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**Maximale momentane Ausgangsstrom 20 Ampere pro Kanal. Maximale kontinuierliche Ausgangsstrom von 5 Ampere pro Kanal.
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**Maximum instantaneous output current 20 amps per channel. Maximum continuous output current of 5 amps per channel.
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*Spannungsausgang Kapazitäten:  
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*Voltage Output Capacities:  
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**Maximale Spannungshub - + 50 Volt pro Kanal.  
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**Maximum voltage swing - + 50 volts per channel.  
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*Frequenz-Bandbreite:  
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*Frequency bandwidth:  
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**+0, -3 dB 1 Hz bis 250 kHz bei geringen Pegeln. - 0 dB 20 Hz bis 20 kHz bei 200 Watt pro Kanal.  
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**+0, -3 dB 1 Hz to 250 kHz at low levels. - 0 dB 20 Hz to 20 kHz at 200 watts per channel.  
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*Eingangsimpedanz:  
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*Input impedance:  
 
**75 kOhm
 
**75 kOhm
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*Dämpfungsfaktor:  
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*Attenuation factor:  
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**100 Constant von DC bis 20 kHz bei Ausgangsklemmen gemessen
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**100 Constant measured from DC to 20 kHz at output terminals.
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*Geräuschpegel:
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*Noise level:
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**5 Millivolt an den Ausgängen.  
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**5 millivolts at outputs.  
 
*Displays:  
 
*Displays:  
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*Individuelle Peak vs hohen Ausgangspegel Lesungen für jeden Kanal.
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*Individual peak vs high output level readings for each channel.
 
   
 
   
  
  
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== Bilder ==
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== Pictures ==
 
http://i.audioscope.net/thresholdmodel400a-1.jpg
 
http://i.audioscope.net/thresholdmodel400a-1.jpg
 
{{Audioscope}}
 
{{Audioscope}}
  
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[[Kategorie:Endstufen]]
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[[Category:Power Amplifiers]]
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[[Kategorie:Vintage]]
 

Latest revision as of 14:57, 14 December 2014

Dates[edit]

General

  • Manufacturer:Threshold
  • Model:400A
  • Dimensions: 48.26 cm W x 39 cm H x 28 cm D
  • Weight: 23 kg


Connections

  • list the connection options here, if known.

Technical Data

  • Nominal power:
    • 100 watts per channel, both channels into 8 ohms, 20 Hz to 20 kHz at 120 volts powered Line source.
  • Harmonic and Intermodulation Distortion:
    • Not greater than 1 percent, Total Harmonic or Intermodulation distortion at rated power, decreasing monotonically with lower power. Distortion virtually immeasurable at low levels. Distortion components are dominated by 2nd and 3rd harmonics. Intermodulation sidebands 1st and 2nd order. Higher order distortion components are negligible below 40 kHz.
  • TID:
    • Transient intermodulation distortion sidebands are at least-75dB below a 10 watt output signal consisting of a 1.5 kHz sine linearly mixed with -20 dB 80 kHz sine. the sidebands are symmetrical about the central decreasing in frequency to about -90 dB by the seventh order.
  • Ancillation time:
    • Front and back edge 1 microsecond.
  • Rate of rise Capacities:
    • Maximum voltage slew rate of each channel 50 volts per microsecond. Maximum current consumption slew rate each channel 25 amps per microsecond.
  • Loop Run Time:
    • Signal propagation time appear at base of input differential transistors 20 microseconds.
  • Current Output Capacities:
    • Maximum instantaneous output current 20 amps per channel. Maximum continuous output current of 5 amps per channel.
  • Voltage Output Capacities:
    • Maximum voltage swing - + 50 volts per channel.
  • Frequency bandwidth:
    • +0, -3 dB 1 Hz to 250 kHz at low levels. - 0 dB 20 Hz to 20 kHz at 200 watts per channel.
  • Input impedance:
    • 75 kOhm
  • Attenuation factor:
    • 100 Constant measured from DC to 20 kHz at output terminals.
  • Noise level:
    • 5 millivolts at outputs.
  • Displays:
  • Individual peak vs high output level readings for each channel.


Pictures[edit]

thresholdmodel400a-1.jpg

Courtesy of audioScope. A use of the pictures by third parties, e.g. in forums or on eBay is not permitted!
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