JBL 705P Studio Monitor Review

[Sal1950]

That said they were broken out the box , buzzing noise out of one of my two speakers and later one died. Just distorted one day out if the blue.

You've been known to abuse your toys.

 

[MZKM]

I know. But this is a new file which cntains 240points vs 200 you require, so please take a


I know. Can you please try to import this Estimated room response. It contains 240 points. If it works I can generate CEA-2034 file with same 240 points.

That's just PIR, the whole CEA-2034 sheet needs to be adjusted as well.

 

[CumSum]

They are quite similar to M16. I do prefer them to Genelec because the 705 did not fall apart with clipping as the Genelec did.

What are your thoughts regarding the JBL 705P vs. the Adam S2V?

 

[QMuse]

That's just PIR, the whole CEA-2034 sheet needs to be adjusted as well.

Sure, I can do it, I was waiting for you to confirm that those 240 points are ok, so are they?

 

[MZKM]

Sure, I can do it, I was waiting for you to confirm that those 240 points are ok, so are they?

Yes

 

[QMuse]

Yes

Ok, getting onto it.

 

[gr-e]

Silly question: doesn't the 705p have built in DSP? So why didn't they correct for the dip?

I agree with @stunta on this - if that dip is a systematic issue why didn't they correct it? User configurable DSP should be for left for room EQ and personal tone controls and not to rectify systematic issues.

It's a phase cancellation between the woofer and the port, you can't fix it with DSP

 

[QMuse]

Yes

Here they are.

 

[QMuse]

It's a phase cancellation between the woofer and the port, you can't fix it with DSP

With PEQ filters you can't , but with FIR?

 

[Joachim Herbert]

Anyone know how Sound & Recording gets their review samples? Do they buy them or companies provide them?

Vendor loan, as is common practice in Germany. For measurements, they use facilities of a german university. Details here.

 

[617]

With PEQ filters you can't , but with FIR?

The dip is happening in the acoustic domain, unfortunately. In theory it could be corrected at a single point in space but practically speaking it is baked into the speaker. Can't be fixed with EQ any more than edge diffraction can be.

 

[Deleted member 2944]

The dip is happening in the acoustic domain, unfortunately. In theory it could be corrected at a single point in space but practically speaking it is baked into the speaker. Can't be fixed with EQ any more than edge diffraction can be.

If you plug the port up with foam, does that dip go away?? 'Not saying that's a solution......just wondering.

Dave.

 

[beefkabob]

I wonder if the B-stock isn't actually a better bet for reliability.... as I presume they are the ones that already had a problem which was fixed? At the very least they probably got an extra round of QC that the new stock didn't.

One of my b stock 708p had a resonance. They replaced it with a new one that works well. I read about several b stock 705p buyers who had issues and couldn't get warranty coverage, just a return for a refund. So I bought 3 705p and I'll return 1 whether broken or not. Or maybe sell it if they all work.

 

[gr-e]

If you plug the port up with foam, does that dip go away?? 'Not saying that's a solution......just wondering.

Yeah, it will

 

[QMuse]

The dip is happening in the acoustic domain, unfortunately. In theory it could be corrected at a single point in space but practically speaking it is baked into the speaker. Can't be fixed with EQ any more than edge diffraction can be.

I thougth only room related issues could be corrected at a single point in space while on-axis, LW, ER and SP can be fixed but both DI will remain the same.

Funny thing is it exists only in SP DI but not in Early reflections DI.

 

[617]

If you plug the port up with foam, does that dip go away?? 'Not saying that's a solution......just wondering.

Dave.

I strongly suspect that would work, of course you would lose quite a bit of bass. JBL knew what they were doing when they made this speaker; the dip is unfortunate but it allows for low loud bass in a small enclosure.

 

[QMuse]

Yeah, it will

So they traded LF efficency for dip? Maybe dip is not really an audible issue..

 

[617]

I thougth only room related issues could be corrected at a single point in space while on-axis, LW, ER and SP can be fixed but both DI will remain the same.

Funny thing is it exists only in SP DI but not in Early reflections DI.

That is more or less correct, I should have been more specific. EQ could fix it at a single point in space in an anechoic chamber. Even less practical.

 

[QMuse]

EQ could fix it at a single point in space in an anechoic chamber.

???

As there are no reflections in anechoic chamber "point in space" is really out of context. Vector defined by horizontal and vertical angles is what makes sense in anechoic chamber.

 

[617]

So they traded efficency for dip? Maybe dip is not really an audible issue..

Not efficiency so much as output but yes. I wouldn't be worried about the dip but you are also paying a lot for small size. I suspect a cheaper 8" monitor would perform better for less but be bigger. This speaker is tiny- around 11"x6"x11". That's smaller than the LSR 305. (12x7.3x9.1)