Question about JBL S312 Main / Stereo Speaker

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JBL s312 studio series.

Thes speakers are 250 watts....each. I want to Upgrade the crossovers and the drivers...can these be possible??? Thanks.

BTW..I want to Upgrade to a 400 watts per  speaker.Any recomendations?

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3 Suggested Answers

  • 2 Answers

SOURCE: No low end on JBL EON G2

I would think that you have a blown woofer. Check around your area for a JBL service center.

Posted on Dec 19, 2008

  • 1 Answer

SOURCE: JBL S312 lacks "punch" in bass response

Hi sherrjam,
I was the guy that was complaining regarding the lack of slam with JBL S312II's.
The problem was solved by upping the amp power to 300W RMS per channel (got two NAD C370's as monoblocks, 300W RMS each).
Get yourself an amp that can put out 300W per channel and you won't be complaining about the lows of S312II's :-)
Regards, Damir

Posted on Jun 09, 2009

dunnbiker
  • 8546 Answers

SOURCE: equipments as follows... 1 behringer ep4000-

First let's clean this up. All that stat stuff is just clutter.

equipments as follows...

behringer ep4000
http://www.retrevo.com/support/Behringer-EP4000-Amps-manual/id/23591dj795/t/2/

behringer ep2500
http://www.retrevo.com/support/Behringer-EP2500-Amps-manual/id/23281ci655/t/2/

2 yamaha s215v
http://www.retrevo.com/support/Yamaha-S215V-Speaker-Systems-manual/id/962bh237/t/2/

jbl mrx 518

behringer crossover cx2310
http://www.retrevo.com/search?q=behringer+crossover+cx2310


How do you connect them properly? According to the manuals, particularly the one for the s215v's. Page 5.

Register and download them for free at retrevo.com

Posted on Mar 30, 2011

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JBL S312 lacks "punch" in bass response


Dear friend....Why you dont join to my proyect???? See? I love my JBL s312 II .

I been getting drunk on them many times.And They have served Very well.

After 5 years of critical listening....i started hearing some descoloration just in 5% of my music. The Bass was an issue for me..i mean the same problem.After all this time I decided..what the hell...let me open these babies and let me see what are they made of.

To My Surprice......I saw a mother board with a very poor components.....I was so mad.But...wait a sec....They have served well all these years...I could not get rid of them like that....Well?

I got in touch with a guy over the internet.He told me that MY crossover components are bad. basically....capacitors of 2 dollars,and...inductors of 5 dollars....yes yes yes (Shame On You JBL)

Anyway....basically...I am Upgrading the same crossover same values with better components....I have not done yet but I already have all the pieces and components.I will let you know how it goes.
It can no go bad....see? Same components......just better quality that's all.

Like the orange juice....sunny delight vs tropicana my friend....

In this case.... Electrolitic capacitors vs Polypropylene capacitors = image,authority,performance.Dinamics.

Now to be honest...I dont know yet the results ok..because I have to put all the parts together. But In Theory...is 100% accurate.

Better components better results. If I were you.....and dont want to take this huge steps like me....Just take the crossover and change the capacitors to a better one( Polypropilene capacitors)
And you will for real heard improvement.

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