Seeburg V200 Audio Outputs and speaker output question

[jeffinmn]

In another post I asked about getting a line output from the V200 amp model HFMA1-L6 to connect to a Seeburg Remote amp HFA-L6 and was advised to connect to pins on the remote volume jack. I did this and it works OK.

I was curious about the outputs labeled 70 volts, A, G and B,  which I know from the manual is to connect to remote balanced 70 volt speaker system. I measured the output at A and G and also A and B and with music running it varies between .5 and 6 volts AC depending on how loud the music is playing. The meter I use has numbers that display and also a scale like a VU meter. While the voltage was varying between .5 and 1.5 the scale looked just like a VU meter, going up and down with the volume of the music. I connected an audio cable to the remote amp and it works and sounds great. The sound has better bass than when connected to the remote volume jack and I connected it to the pin on the jack so that the output varies when you change the jukebox's volume pot. 

Could using the outputs labeled A and G as a line output damage the internal Seeburg Amp? The internal amp sounds the same regardless if the remote amp is connected or not. I measured the impedance (resistance) at the input jack on the remote amp and it's infinite on my meter which maxes out at 20 meg ohms. 

[robnyc]

Jeff, the way you made the connection via the 70v terminals is actually using half the secondary so, in theory a 35v connection.

There two reasons why this is not ideal:

If the volume control were to be turned all the way up, in theory 35 volts of audio signal could be fed to the booster amp. The amp you are using is tube so unlikely to be damaged by this (a transistor amp is another matter)and the Seeburg amps don't really ever have anything near the full claimed level.

Second, by taking the booster feed from the output of the main amp you impose all the limitations of it on the following amp which will add it's own shortcomings. Again, no actual damage, but not ideal in terms of sound quality.

RobNYC

[jeffinmn]

Thanks for your reply. For what it's worth, the tone, bass and treble, sound better then when it was connected to the variable output on the remote volume control. Bass is better and the treble is nice and crisp. I've been using it this way for the last couple of days. I do have to keep the volume control on the remote amp near the minimum or the remote speakers get too loud. It has no tone controls.