Difference between revisions of "Adcom GFA-555 II"

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Produktart: High End Hochleistungs Endstufe
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'''General'''
Anzahl der Kanäle: 2
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*Product type: High end high power amplifier
Marke: ADCOM
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*Number of channels: 2
Audioeingänge: Stereo L/R RCA
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*Brand: [[Adcom]]
Modell: GFA-555 II
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*Audio inputs: Stereo L/R RCA
RMS-Leistung: 400 W  
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*Model: GFA-555 II
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*RMS power: 400 W
  
Technische Daten:
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'''Specifications:'''
*Inputs
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*Inputs.
 
**100k O.  
 
**100k O.  
 
**Two gold-plated, Teflon-insulted brass RCA jacks
 
**Two gold-plated, Teflon-insulted brass RCA jacks
 
*Gain
 
*Gain
**27 dB.
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27 dB.
 
*Input Sensitivity  
 
*Input Sensitivity  
**1.75V for 200 W into 8 O.
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1.75V for 200 W into 8 O.
**130 mV for 1 W into 8 O.
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130 mV for 1 W into 8 O.
 
*Rated Power Output  
 
*Rated Power Output  
**200 watts per channel into 8 O from 20 - 20,000 Hz at less than 0.04% THD, both channels driven.  
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200 watts per channel into 8 O from 20 - 20,000 Hz at less than 0.04% THD, both channels driven.  
**325 watts per channel into 4 O from 20 - 20,000 Hz at less than 0.04% THD, both channels driven  
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325 watts per channel into 4 O from 20 - 20,000 Hz at less than 0.04% THD, both channels driven.
**600 watts into 8 O from 20 - 20,000 Hz at less than 0.04% THD, bridged mono  
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600 watts into 8 O from 20 - 20,000 Hz at less than 0.04% THD, bridged mono  
**850 watts into 4 O from 20 - 20,000 Hz at less than 0.09% THD, bridged mono  
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850 watts into 4 O from 20 - 20,000 Hz at less than 0.09% THD, bridged mono  
 
*Dynamic Headroom
 
*Dynamic Headroom
**2.5 dB at 4 O.
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2.5 dB at 4 O.
 
*Power Bandwidth
 
*Power Bandwidth
**1.7 - 100,000 Hz at - 3 dB.
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1.7 - 100,000 Hz at - 3 dB.
 
*Frequency Response
 
*Frequency Response
**10 - 20,000 Hz +0, -0.25 dB at 1 W RMS into 8 O.
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10 - 20,000 Hz +0, -0.25 dB at 1 W RMS into 8 O.
 
*Damping Factor  
 
*Damping Factor  
**Not less than 800 from 20 - 20,000 Hz into 8 O.  
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Not less than 800 from 20 - 20,000 Hz into 8 O.  
*Noise  
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Noise  
**Not less than -110dB down from 200 watts into 8 O, A-weighted.  
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Not less than -110dB down from 200 watts into 8 O, A-weighted.  
 
*Power Input  
 
*Power Input  
**220 VAC 50-60 Hz.
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220 VAC 50-60 Hz.
**72 VA idle.
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72 VA idle.
**1,500 VA maximum.  
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1,500 VA maximum.  
**675 VA at 200 W into 8 O.
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675 VA at 200 W into 8 O.
**I measure 37.5 watts at idle, cold.
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I measure 37.5 watts at idle, cold.
**60 watts at idle, warm (0.73A).  
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60 watts at idle, warm (0.73A).  
**92 Watts (1.09A) when delivering 1 watt per channel into 8 O.
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92 watts (1.09A) when delivering 1 watt per channel into 8 O.
**845 watts when delivering 265 watts per channel into 8 O.
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845 watts when delivering 265 watts per channel into 8 O.
*Abmaße
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*Dimensions
**185 x 432 x 310 mm
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185 x 432 x 310 mm
*Gewicht
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Weight
**16 kg
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16 kg
  
  
== Bemerkungen ==
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== Remarks ==
Weitere Modelle der gleichen Serie:
+
Other models of the same series:
  
== Bilder ==
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== Pictures ==
[[Datei:Adcom GFA-555 II.jpg]]
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[[File:Adcom GFA-555 II.jpg]]
== Testberichte ==
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== Reviews ==
  
 
== Links ==
 
== Links ==
  
[[Kategorie:Endstufen]]
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[[Category:Power Amplifiers]]
 
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__NOTOC__

Latest revision as of 05:15, 20 November 2012

General

  • Product type: High end high power amplifier
  • Number of channels: 2
  • Brand: Adcom
  • Audio inputs: Stereo L/R RCA
  • Model: GFA-555 II
  • RMS power: 400 W

Specifications:

  • Inputs.
    • 100k O.
    • Two gold-plated, Teflon-insulted brass RCA jacks
  • Gain

27 dB.

  • Input Sensitivity

1.75V for 200 W into 8 O. 130 mV for 1 W into 8 O.

  • Rated Power Output

200 watts per channel into 8 O from 20 - 20,000 Hz at less than 0.04% THD, both channels driven. 325 watts per channel into 4 O from 20 - 20,000 Hz at less than 0.04% THD, both channels driven. 600 watts into 8 O from 20 - 20,000 Hz at less than 0.04% THD, bridged mono 850 watts into 4 O from 20 - 20,000 Hz at less than 0.09% THD, bridged mono

  • Dynamic Headroom

2.5 dB at 4 O.

  • Power Bandwidth

1.7 - 100,000 Hz at - 3 dB.

  • Frequency Response

10 - 20,000 Hz +0, -0.25 dB at 1 W RMS into 8 O.

  • Damping Factor

Not less than 800 from 20 - 20,000 Hz into 8 O. Noise Not less than -110dB down from 200 watts into 8 O, A-weighted.

  • Power Input

220 VAC 50-60 Hz. 72 VA idle. 1,500 VA maximum. 675 VA at 200 W into 8 O. I measure 37.5 watts at idle, cold. 60 watts at idle, warm (0.73A). 92 watts (1.09A) when delivering 1 watt per channel into 8 O. 845 watts when delivering 265 watts per channel into 8 O.

  • Dimensions

185 x 432 x 310 mm Weight 16 kg


Remarks[edit]

Other models of the same series:

Pictures[edit]

Adcom GFA-555 II.jpg

Reviews[edit]

Links[edit]