Stepdown input trafo

[Gluca]

Ciao,

I was having a look to jensen tranformers products and I noticed a couple of stepdown (4:1) input transformers. I can understand you will see at the input higher (16x) R and lower C, and both are beneficial assets, but the signal is slumped to 25%.

What are those transformers intended for???

Gianluca
PS Probably there is no connection but my mac suffered a system crash due to some HD problems suddenly after. Information Technology is not an exact science.

 

[Colt45]

impedance matching for something or other, i assume.

 

[Geek]

Hmmmm, 4:1?

I haven't seen that ratio outside of RF.

Can someone give a useful example of 4:1 beneficial in audio?

 

[moamps]

"Ideal passive "Pro to Consumer" level converter" from
http://www.jensen-transformers.com/datashts/10kbdpc.pdf

Or maybe for long run MPX interconnection (wide bandwith).....

 

[EC8010]

Yes, I'd think it would be good for interfacing a professional signal into a piece of domestic equipment. It would make the input impedance of the consumer equipment high (allowing bridging) and reduce the professional (sensible) levels to those that domestic kit can cope with. No, I'm not biased.

 

[Bas Horneman]

Ciao Gianluca,

I have the Raleigh Audio Line stage that uses a 4:1 step down phase splitter 6N1P gain stage and a 4:1 stepdown output.

Total gain 8dB. I don't really know why Dave Davenport used the 4:1. Maybe there is some info on RaleighAudio.com or otherwize you can email Dave. He is very helpful.

Regards,
Bas

 

[pedroskova]

I'm using a 120V:44V 1.5watt power toroid as input/ phase splitter for my line stage(similar to Bas's). It's not 4:1, but it seems to work fine. Stole the idea from some guy named Bench.

 

[Geek]

Great info guys, thanks