ok thanks.Wires are very poor quality and I can t test the crossover correctly because of a lake of knowledge…I decided to try active bi-amping without touching anything in the old pieces.I ve put some new wires at the three drivers,and connected them directly to the power amp.I ll try the dbx pa2 as active crossover.I ll receive it tomorrow .The drivers are in good conditions.Normally it might sound I hope!
That sounds like a good plan, just take care not to blow any speakers. Generally it is not safe to to connect the speakers directly to the power amp - driving them with wrong frquencies will probably cause damage.
Take your time setting up the crossover before playing any music and so on.
Take your time setting up the crossover before playing any music and so on.
I do not have enough experience with stuff like that, so I cannot help you any further. Original specs should be a good starting point.
Other than that you can search around for tips and tricks while using an active crossover - I am pretty shure there is enough information to get you started.
Let us know how things work out.
Other than that you can search around for tips and tricks while using an active crossover - I am pretty shure there is enough information to get you started.
Let us know how things work out.
Crossing over to the horn a little higher might make it sound less aggressive. Horns are tough at 600hz, lots of them get all beamy. If you had a knob to adjust, you'd hear very notable differences over just a few hundred Hz of range.
There are also different slopes depending on the type of crossover. Sometimes a more gentle slope will help them blend together.
This is the fun part! Just don't send low low frequencies to the horn and see what sounds best to you.
There are also different slopes depending on the type of crossover. Sometimes a more gentle slope will help them blend together.
This is the fun part! Just don't send low low frequencies to the horn and see what sounds best to you.
I think you'd be safe trying up pretty far, especially if you're not cranking it. You won't hurt those woofers with 1k or even 2k. It's more about the horn not wanting to go low. For me, if it's crossed too high, voices sound bad. Try 800, see if it sounds better. A gentle slope would be 12, but they should match as a starting point. You can also vary them, a high pass at 600 for the bass, and a low pass for the horn at 8. Don't cross the horns lower than 600.
Start by bringing the low level up to where you want it, then bring in the mids to match. Don't try to set levels by the numbers. Do it by ear.
Start by bringing the low level up to where you want it, then bring in the mids to match. Don't try to set levels by the numbers. Do it by ear.
totem
Addicted Member
It's possible the ST- 350's were over driven previously and now the diaphragms are not within OEM spec's.
Is your HF adjustment control working?
Yes it works.I ve juste replaced the st-350 by others vintage st350a in perfect state,because there were without any EV inscriptions at all…and thought they were not originals.In fact,they were originals BUT without EV caps on them.Just look at the photos
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Almost universally. I screwed around with both way back when on both 8HD and SM-120 horns and damned if I heard a difference.