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I'm a cinema installer and an enthusiast about sound. I have two 4645B (just the box is slightly different) in my HT, but unfortunately the acoustic is very bad and led me to install those two beasts...

Hi Steve!

Thanks for your help. From the rear I can see the fron of the cone but I think they were all replaced with non-altec drives (i know it's a no-no, I didn't do it!) so I cannot say if...

Hi guys

Recently I was at a theater that has - the owner says - Altec VOT speaker behind the screen.

The left and righe channels are what I recognize as A6, with normal horn. The center channel...

That's important for me.

Ok, I'll try the 2380 keeping in mind all your opinions. I hope to have room for 2360 for the center channel.

Bye
A

Don't worry, I didn't buy that equipment and work for 2 years on my room to have only "decent" results... :)

As I told to a fiend of mine, with an electronic crossover, two equalizers,...

First of all thank you for all of your suggestions.

No, I'm not trying to have smaller horns because I don't like the larger one. I LOVE the larger 2360. BUT my room is not so big and since I'd...

Thank you for the suggestions.

I dont' think that the 2397 will be available in the cinema market right know. I'll try to have one for testing.

In the meantime I think I'll have to go with...

I think that I can have the chance to test the new horns.
About the throw, they're all very overestimated for my room. I think that a wider dispersion can smooth the sound, does it make sense?
...

I mean if someone can help me understanding all the data I can find on a pdf!

What I should keep in mind choosing my horns?
For example, in the "compact" ones there are 90x40 or 120x40: which is...

Anyone that at least can help me better understanding the differences between the horns models?

Bye
A

I understand that the B6 filters I linked has a HPF at 30Hz and a boost at the same frequency.

So I adjusted a HPF on the DEQ2496 and the boost.

Is it wrong?

Bye
A

Uhm... How many db/octave is a Q=2?

So a HPF Q=2 at the Fb of the sub. Then a +6dB at the same frequency, Q=2.

Question: I analyzed the output of the RDL ST-CX1S with my RTA and I found that...

We was replying together!

Sure, it is not a problem. I'll check soon. I edited my previous message at the end... :)

Thanks for your help!

Bye
A

:crying:


:) Thanks!



Yes, Fb.

Frown because I would not believe that I can find two JBL 4645B with different tuning... :( They should call them "B1" and "B2" :)

The speakers are used and since I work in cinema I had these for a good price... However you're right, they're not cheap! :)
Thanks again for your appreciations!

Sure for the rugs, I have to...

Ok!


I see it as very negative behaviour... If I was an installer, how can I properly design a sound system if the factory does not help me this way??



Really? Same models with 2242H...

Many Thank happy face! :D

Sure, the setup is not completed.

The foam you see is not fiberglass, it polyester wool, not as powerful as rockwool but I choose it because I do not want to have a...

Hi!

What do you mean?


Sure, I was referring of 4645B and C, not the original 4645.
About the juice: let's suppose I'm designing a sound system and that the power requirements says that I...

Hi noreal :)

2360 should be the same model you can see in my picture, isn't it?

I made only few tests but the quality of sound was much more of expected.

And what about the 2380?

...

HI everyone

I'm carrying a question on JBL subs equipped with the 2242H driver since many years.

The JBL 4645B or C is an example. On 4645B/C pdf is clearly shown (more clear on 4645B!) two...

Hi everyone

Since this is my first post, let me introduce: my name is Antonio and I'm writing from Italy so pls excuse me for syntax! http://audioheritage.org/vbulletin/images/smilies/smile.gif ...