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Pre90&Ext90 Black

KWD 91

Brand
Fanmusic
Category
Home Theater
Weight
2 kg
ColorBlack
SizePre90&Ext90
All electronics ship with US style plugs. You may need a voltage converter or a plug adapter.
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Special Features

  • Pre90 adopts full balanced structure. The output can be balanced, sin- gle- ended, balanced + single- ended.
  • With the balanced + single-ended two-way input, in addition to the normal preamplifier usetage
  • Pre90 can be used for "balanced to sin- gle- ended" or“single -ended to balanced" signal conversion.
  • With the help of maximum gain +16 dB, Pre90 could easily amplify the weak input signal to acceptable level of next amplifier.
  • It is worth men- tioning that since the noise is as low as 0.3uVrms, this step does not bring in audible noise while amplifying the signal.

Description

Pre90/EXT90 parameters (@IN= 5Vrms Vol=0dB)
THD+N:
SE IN/SE OUT: BAL IN/SE OUT: SE IN/BAL Out: BAL IN/BAL OUT:
@1kHz A-wt:
SE IN/SE OUT: BAL IN/SE OUT: SE IN/BAL Out: BAL IN/BAL OUT:
THD @20-20kHz 90kBW:
SE IN/SE OUT:124dB
BAL IN/SE OUT:124dB
SE IN/BAL Out:124dB
BAL IN/BAL OUT:124dB

SINAD @1kHz A-wt
SE IN/SE OUT:141dB
BAL IN/SE OUT:137dB
SE IN/BAL Out:145dB
BAL IN/BAL OUT:138dB

Dynamic Range @ 1kHz A-wt :
SE IN/SE OUT:141dB
BAL IN/SE OUT:137dB
SE IN/BAL Out:145dB
BAL IN/BAL OUT:138dB

Frequency Response:
SE IN/SE OUT:20Hz-100kHz(+0.1dB)
BAL IN/SE OUT:20Hz-100kHz(+0.1dB)
SE IN/BAL Out:20Hz-100kHz(+0.1dB)
BAL IN/BAL OUT:20Hz-100kHz(+0.1dB)

OutPut Level
SE IN/SE OUT:25Vpp
BAL IN/SE OUT:25Vpp
SE IN/BAL Out:50Vpp
BAL IN/BAL OUT:50Vpp

AP measured noise level @A-wt:
SE IN/SE OUT: BAL IN/SE OUT: SE IN/BAL Out: BAL IN/BAL OUT:
Actual noise level*@A-wt:
SE IN/SE OUT: BAL IN/SE OUT: SE IN/BAL Out: BAL IN/BAL OUT:
Channel Crosstalk @1kHz
SE IN/SE OUT:-130dB
BAL IN/SE OUT:-137dB
SE IN/BAL Out:-140dB
BAL IN/BAL OUT:-140dB

Channel Balance:
SE IN/SE OUT:+10dB- -60dB ±0.5dB
BAL IN/SE OUT:+10dB- -60dB ±0.5dB
SE IN/BAL Out:+16dB- -60dB ±0.5dB
BAL IN/BAL OUT:+16dB- -60dB ±0.5dB

IMD CCIF @( 18kHz+ 19kHz):
SE IN/SE OUT:-115dB
BAL IN/SE OUT:-115dB
SE IN/BAL Out:-115dB
BAL IN/BAL OUT:-115dB

IMD SMPTE @(60Hz+ 7kHz):
SE IN/SE OUT:-115dB@SMPTE4:1
BAL IN/SE OUT:-115dB @SMPTE4:1
SE IN/BAL Out:-115dB@SMPTE4:1
BAL IN/BAL OUT: -115dB@SMPTE4:1

Input Sensitivity:
SE IN/SE OUT:9.2Vrms @0dB
BAL IN/SE OUT:9.3Vrms @0dB
SE IN/B

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