Need help choosing op amp for active crossovers and preamp

[gmant123]

Hi, I try Ne5532, opa2134 ad826, and lm4562, for my the best is the last, and the poor is the first. The LM is simply magical, analogical, but discrete maybe will be the way....

 

[marc brown]

Hello Jonathan

Why you don't give a try on this one

Linkwitz-Riley Electronic Crossover

Instead of TL072 (which I think it's very good) , you can use TLE2072 !

Can pcb's for that project still be ordered?

 

[Gusser]

I believe that discrete circuits sound better because of their simplicity. Don't look at specs of op amps because when it comes to sound they don't mean nothing.
On the other hand there are some very respectful and good sounding designs using op amps (Madrigal and Jeff Rowland preamps) that you cannot disregard op amps completely. The choice belongs to you and depends on your personal preferences and how complicated you want your project to be.
Here is a good link to combined lineamp and crossover with an artwork: borbelyaudio.com

It's funny. You only hear this in audio - in fact only in consumer audio circles.

I started designing analog broadcast video gear in the early 1980s. beleive me when economical video speed OPAMPS came about in the 1990s from Maxim and Comm Linear, it was a god send.

There is no way a discrete video amplifier can outperform a video OPAMP. Been there, seen that. And for the same technical reasons, I don't put too much stock in the audio OPAMP stories.

 

[silverprout]

It's funny. You only hear this in audio - in fact only in consumer audio circles.
I started designing analog broadcast video gear in the early 1980s. beleive me when economical video speed OPAMPS came about in the 1990s from Maxim and Comm Linear, it was a god send.
There is no way a discrete video amplifier can outperform a video OPAMP. Been there, seen that. And for the same technical reasons, I don't put too much stock in the audio OPAMP stories.

I remember (i was young) the years 80-90, the engineers in the magazines were often claimed "discrete circuits sound better" but it was always about amplifiers.

The context often disappear within time go by...