High pass filtering

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I thought that generally, if passive, HPF or "bass lifts" or whatever you want to call them, were best placed before amplification.

Is this in regards to designing an all in one unit or just stringing separate units in a signal chain for best effect?
 
[quote author="peter purpose"]Hi Miko,
I was just thinking of nailing one into my next mic pre.[/quote]

I guess it depends on whether the circuitry in your preamp has problems handling bass. If it does, then yes, filtering beforehand is a good idea. If not, then filtering afterwards (but before it goes to other gear) will be fine.

Having high pass filters *someplace* in the preamp is usually a good idea, though, especially if the next thing downstream is going to be a compressor.

Peace,
Paul
 
I'm in the midst of recording a metal band right now. Well, for the last 5 months actually. I'm entering the mix process and let me tell you, high pass filtering is my new best friend. Compressors really get pumping when you have a "woofy" sealed guitar cab. God I hate M*sa's and those Line 6 amps.
 
Hi Paul,
The kind of stuff I build is mostly API based and think they can handle the bass nicely, so diverting the output transformer secondaries through a couple of .1uF caps will probably be the ticket.

Miko,
You've convinced me.

peter
 
[quote author="peter purpose"]Hi Paul,
The kind of stuff I build is mostly API based and think they can handle the bass nicely, so diverting the output transformer secondaries through a couple of .1uF caps will probably be the ticket.[/quote]

Yes, as long as they'll always be feeding the same load. Into 10k you'll have a bass rolloff at 318 Hz, perhaps a little high.

Peace,
Paul
 
The Tele V76 has the bass rolloff right on the pri of the input iron, but it's a fixed design. This keeps the distortion low, as the transformer does not have to handle the lows first.
 
The Tele V76 has the bass rolloff right on the pri of the input iron, but it's a fixed design. This keeps the distortion low, as the transformer does not have to handle the lows first.
Strange relation, but it makes me think of Peavey bass amps. Got the feeling they restrict the (low-)lows to keep out of trouble. I didn't knew what happened when I switched to other bass-amps.
 

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