power amp/pre amp input and output impedence question


Hello, im in the process of researching a new system, low and behold my limited knowledge has led me to try understanding the input and output impedences to better assemble my new system as to the power amp and preamp.

in all of my years as a Hometheater guy I've avoided such topic because with "most" HT gear it all works together just fine.......

Hear I am many years later "catching up" on terms I should know, I was gonna just google and read, but most of the time well versed members can get to the meat better than random google replies

Thank you KG

kgveteran

Showing 1 response by arcticdeth

My grail preamp is :

OUTPUT

  •  Two pair of adjustable, unbalanced, outputs at line level using RCA connectors
  • One pair of adjustable, balanced, outputs using XLR connectors (Pin 2 "hot")
  • One unbalanced, fixed level output at unity gain for recording using RCA connectors
  • All outputs may be used simultaneously

 Frequency Response

-3 dB at 5 Hz and 200 kHz

Noise

Greater than 100 dB below 1 volt reference

Distortion

Less than 0.002% from 10 Hz to 40 KHz @ 5 volts peak into 600 ohms or higher, shunted by 1,000 pF or less

Output Impedance

50 ohms, non-reactive, balanced or single-ended

Phono Input Impedance  

User adjustable between 47,000 and 100 ohms. Default setting is 47,000 ohms

Phono Input Capacitance  

User adjustable between 50 pf and 1,200 pF. Default setting is 50 pF.

Input Impedance

47 kohms, balanced or single-ended

Gain  

User adjustable up to 18 dB. Default setting is +8 dB

 Maximum Output  

 10 volts peak

Crosstalk

Greater than 70 dB from 20 Hz to 20 KHz

Power Supply

Independently regulated with shielded toroidal transformer and 20,000 uF of capacitance

Power Consumption

10 watts

Voltage

Voltage is user selectable for use world-wide

 

 



great preamp!