JBL Pro 3677 Have arrived!!! - Page 7 - AVS Forum
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Speakers > JBL Pro 3677 Have arrived!!!
MKtheater's Avatar MKtheater 11:23 AM 01-23-2014
If the 3677 satisfies then there is probably no reason to go bigger. I had the 4722N HF section and also the big brother to the 3677, the 4675. The 4722 had better highs but overall the 4675 did everything else better.

Reddig's Avatar Reddig 11:34 AM 01-23-2014
Quote:
Originally Posted by cdy2179 View Post

After after a few PMs with MK I may go with the 4622n, simply because ...why not! I can't imagine the midbass being much more, the 3677 is insane. The dual 15s add about 4 more db to the sensitivity, this is probably be the biggest plus, they will be able to handle more power and be more sensitive which is great in a 200 seat theater, but in our rooms, we won't even come close to needing that extra performance. Seriously, the 3677 can hit reference effortlessly in our rooms. The CD also extends higher in the 4622, but not once did I feel the 3677 was lacking in high end even though it's only rated flat to 12k.

Ohh, and just a tip, If you call Full Compass, you can save some serious money. The price they list online is just the MSRP.
Cool ya if can afford it and got the space the 4622N would be awesome. Is the newer model the 4722n? I've heard them in a smsll 30 seat cinema and I was in love.

Ya thanks on the tip I had called them to price the 3677's and they quoted me $591 per speaker not including shipping. Pretty good deal. I'm gunna go with either 3 of them or save up extra and go same route as you and step up to a dual 15 model like the 4722.
cdy2179's Avatar cdy2179 09:34 AM 01-24-2014
The 3722n is the next in line followed by the 4722. Mk had the 3622n I believe which is now the 3722.
MKtheater's Avatar MKtheater 10:27 AM 01-24-2014
I had the 3622N(3722 did not exist yet), and then I had a DIY version of the 3731, and then the 4675C-LF. The 3722N replaces the 3622N. The 4 series screen arrays have upgraded drivers from the 3 series screenarray. The 3677 is within the same family as the 3678 and then the 4675. They use a different horn and CD and I think different 15 inch driver. They are the older designs that rolled off the Highs where the screen arrays do not. The screen arrays were meant to go behind a perforated screen but worked very well behind my Seymour woven screen.
JonasHansen's Avatar JonasHansen 02:25 AM 01-27-2014
The difference between the 3677 and the 4722 is (IMO) not just about midbass and SPL. The 4722 uses a much newer waveguide design and uses a 3" compression driver compared to the smaller compression driver in the 3677. From my experience, the size of the compression driver has impact on the sound in other ways than just SPL. A larger driver just sounds "fuller" and more smooth/effortless.

Just my two cents smile.gif But no matter which speaker you choose in the JBL Cinema line they will deliver an impressive result for movies.
cdy2179's Avatar cdy2179 02:36 PM 01-27-2014
Yea the larger cd can also be crossed a lot Lower ( 800hz for the 4722n vs 1200hz in the 3677) which has benefits. Not sure if that will be a huge audible improvement. The 3722n is crossed at 1300hz (newer version of MK's first jbls) a tad higher than the 3677. I'd love to be able to hear them all in my room at the same time for comparison. .
jkkwaz's Avatar jkkwaz 06:27 PM 01-27-2014
So the 3677 uses the 2035h, right? But I have also seen a 2035hpl listed as the driver used? What is the difference?
JonasHansen's Avatar JonasHansen 10:43 PM 01-27-2014
No difference. HPL denotes that the driver is sold as part of a system and not as a single driver.
cdy2179's Avatar cdy2179 09:39 AM 01-28-2014
Mention of the woofer makes me wonder how the 3677 sounds compared to the 3622 (MK's first jbl) and newer version 3722, as the 3677 has a better driver with the 2035. Being all of those mentioned cross at either 1200 or 1300hz most vocals would be handled by the woofers in all cases.

It could be possible that the 3677 could have better sounding midbass being it uses a better driver, although it's a single 15 vs dual 15. And vocals could be better too as the 15 handles most of the vocals at these crossover points.

The cd is also very very similar, although the 3677 doesn't have nearly as large of a waveguide.

I'm sure the 4722 would be definitely a step up as the 15s and cd are all better, but they are double the price of the 3677.

I may just go back with the 3677, I already know I love them, I wish MK had heard them to compare to his old 3622s.
JonasHansen's Avatar JonasHansen 09:54 AM 01-28-2014
Quote:
Originally Posted by cdy2179 View Post

Mention of the woofer makes me wonder how the 3677 sounds compared to the 3622 (MK's first jbl) and newer 3722, as the 3677 has a better driver with the 2035. Being all of those mentioned cross at either 1200 or 1300hz most vocals would be handled by the woofers in all cases.

It could be possible that the 3677 could have better sounding midbass being it uses a better driver, although it's a single 15 vs dual 15. And vocals could be better too as the 15 handles most of th vocalsat these crossover points.

The cd is also very very similar, although the 3677 doesn't have nearly as large of a waveguide.

I'm sure the 4722 would be definitely a step up as the 15s and cd are all better, but they are double the price of the 3677.

I may just go back with the 3677, I already know I love them, I wish MK had heard them to compare to his old 3622s.

From what I'm told, JBL looks at the 3722 as "low end". Arent the 15's used in cheap DJ stuff as well? I think the 4722 is worth the extra money - its still pretty cheap if you consider consumer alternatives.

Regarding the single vs. double woofers, I see only advantages about going with a single woofer. Placement for example. The bottom woofer in the dual woofer config will very often be placed close to the floor which will result in SBIR-issues (which is not fixable with EQ). This is avoided with a single woofer and with the single woofer you wont have the nasty dip in frequency response as you do with dual.
cdy2179's Avatar cdy2179 12:25 PM 01-28-2014
It's designed for the smaller theaters, and that's how it's advertised, that doesn't mean it's sound within its limits is inferior. It can't handle as much power and isn't quite as sensitive as the others mentioned, It basically has the same cd as the 3622/3722 with a smaller waveguide.

The 2035 woofer is slightly more expensive (jbl direct) than the woofers used in the 3622/3722 and even a few $ more than the woofer used in the 4722n (265h-2) And a few dollars more than the popular 2226, however that's probably a supply and demand thing as I thing the voice coil on the 2226 is better.

The 2035 is used in some of the higher end cinema lines too. Here they are in a $3000 dollar cinema speaker.

http://www.ggvideo.com/jbl_4675c.php

Looks a lot like some more MK had, not sure what woofer those had.


As far as drivers go, the 3622/3722 actually has the budget 15 (m115-8) not the 3677. Definitely something to consider. As as far as the woofers go the 3677 in no way has the budget or inferior woofer based on driver price and what other higher end cinema speakers they're used in, and may be the best woofer out of the speakers mentioned as none mentioned have the 2226h. they probably all have their pros and cons.

By driver comparison I'd say it's as low end as the 3722 is within its limits and intended purpose, small theaters, where the 3722 is the budget speaker for larger theaters, and the I've owned it, and it was by far the most impressive speaker I've ever owned.

Just kinda putting my thought out on the forum as I'm still torn between which ones to get, reorder 3677, or go for something that may or may not be a nnoticeable upgrade. I'm just not sure the 3722 will actually be worthy upgrade sitting 15-18 feet away. Because I can't hear them all I can do is compare the drivers.
MKtheater's Avatar MKtheater 02:44 PM 01-28-2014
One of the main reasons I went with screenarrays over their traditional designs is because one can sit closer and in small theaters this is a benefit. However, in my space the 4675C-LF(mine used dual 2226's) was fine from that distance as well. There are 3 major differences going from the 3622N to the 4675C-LF's. BTW, my 3622N were passive running on powerful amps and the 4675C-LF's were running on powerful amps with their own DSP and crossovers built for the 4675C-LF's. OK, back to the differences. For anyone thinking of JBL pro cinema speakers they are big, very big. They take up lots of space and the reason I switched to different speakers. I wanted multiple sealed and to move my screen back so I sold them as the 2360 horn was 37 inches deep! Not a problem for the screenarrays though. The JBL pro speakers put out the biggest sound stage I have experienced so far, meaning, they make your small room sound like a huge cinema! That is their best attribute IMHO. The bigger the speaker the bigger the sound stage, my 4675C-LF's sound enormous and they were. They also had lots of midbass, their dual 2226's had more impact than the 3622N's dual 15's at the same levels. This also adds to that big sound. Now another thing I noticed was that the big CD(it was huge) on the 4675C-LF's had the best vocals of most speakers I have owned. I forgot what the crossovers were on the ashly amps DSP. They both sound similar other than that. One of the speakers that is supposed to be real goof is the THX rated 3678 with it's single 2226 woofer. It is in the same family if CD's and horns of the 3677 and my 4675C's which all rolloff earlier than the screen arrays. I never heard it but I think it is in the 4722N price range so hard choice for sure.
Reddig's Avatar Reddig 03:42 PM 01-28-2014
Great stuff MK love it when u talk JBL pro cinema. Best speakers no one wants lol.

I know some guys that have been tuning and installing cinema systems since the 70's and they swear by two different models. If the room is medium to large the use the 4675C-LFs bi-amped.

If the room is medium to small or just smsll they use the 4670D.

http://www.jblpro.com/pages/pub/cinema/4670d.pdf

Has all the requirements that make a cinema speakers excellent but with a smaller horn. Check out the LF drivers used as well as the higher up big CD.

And they always use the 4645C in multiples. Tomlinson Holmam aka mr THX had a favorite speaker and it was the 4675c-LF. MK your ears don't lie lol. He speced it into countless THX rooms, dub stages and at Skywslker Ranch back in the day.

Here's a bunch of awesome equipment for sale and this guys has been known to give the stuff away practically. Wish I had extra cash . Here's link .

http://www.film-tech.com/ubb/f2/t004340.html

I'd keep it in mind man.
cdy2179's Avatar cdy2179 03:47 PM 01-28-2014
Funny u should mention those. I was thinking those probably have the best woofer in the 3 series using the 2226. It's also Thx certified if u go active, I want to stay passive. It has a 1k crossover I think which may help as the ones u liked best I think were also crossed lower than the 3622, probably around 700 on those bad boys
.

Just priced the 3678, they are about double the 3677, ouch!
cdy2179's Avatar cdy2179 06:11 PM 01-28-2014
Quote:
Originally Posted by Reddig View Post

.

Here's a bunch of awesome equipment for sale and this guys has been known to give the stuff away practically. Wish I had extra cash . Here's link .

http://www.film-tech.com/ubb/f2/t004340.html

I'd keep it in mind man.

That's definitely a forum I'll be watching. Thanks for pointing it out.
MKtheater's Avatar MKtheater 08:27 PM 01-28-2014
Yeah, the 3678 is about the same price as the 4722n so tuff decision. Another route one can take is a SEOS horn and DNA-360 on top of a 2226 which should very good. The SEOS sounds very smooth but not as big and robust sounding as those big horns from JBL. How much are the 4670D's? With the 3678 utilizing the 2226 I wonder how they compare?
Reddig's Avatar Reddig 08:39 PM 01-28-2014
Quote:
Originally Posted by cdy2179 View Post

Funny u should mention those. I was thinking those probably have the best woofer in the 3 series using the 2226. It's also Thx certified if u go active, I want to stay passive. It has a 1k crossover I think which may help as the ones u liked best I think were also crossed lower than the 3622, probably around 700 on those bad boys
.

Just priced the 3678, they are about double the 3677, ouch!
Damn! Ya I remembrr seeing prices on them at some point a while back and I forgot till you reminded me. I need to call Full Compass and price the 3722Ns than spend many sleepless nights wondering if the extra 15 and larger horn would give it a big enough edge over the 3677 to b worth the extra time and patience to save for it.

I'm thinking my plan is getting three 3677s and two Crown XLS-2000's. If I feel the need for more midbass and larger sound I'll sell the 3677s abd pick up a used trio of 4670s or 4675Cs and save a lot of cash.
cdy2179's Avatar cdy2179 08:43 PM 01-28-2014
Looks like the 4670d is about $2500 new. I'll probably end up with 3677 unless I can find a good deal on the 3678, or maybe even the bigger stuff like the 4722 or 4670d if I can find a deal when I'm ready to order. I'm not sure the 3722n would be much of an upgrade to justify it over the 3677 at new prices. I hadn't thought about used but it's worth a look.

I was searching earlier and found a guy selling some 4638 a few months ago, he was selling 3 for $750.
Reddig's Avatar Reddig 08:47 PM 01-28-2014
Quote:
Originally Posted by MKtheater View Post

Yeah, the 3678 is about the same price as the 4722n so tuff decision. Another route one can take is a SEOS horn and DNA-360 on top of a 2226 which should very good. The SEOS sounds very smooth but not as big and robust sounding as those big horns from JBL. How much are the 4670D's? With the 3678 utilizing the 2226 I wonder how they compare?

They list new for about $600 ess than the 4675c's new. Prolly bout $2,000 a piece but list for $2600.

http://www.avlgear.com/jbl-4648a-jbl-4670d-direct-radiator-high-power-cinema-loudspeaker-system/

List of the 4675C is $3300 prolly $2600

http://www.avlgear.com/jbl-4670D-jbl-4675c-direct-radiator-high-power-large-cinema-system/

Goes to show how amazing the deals on used JBL stuff is as you well know from experience MK
Reddig's Avatar Reddig 08:49 PM 01-28-2014
Quote:
Originally Posted by cdy2179 View Post

Looks like the 4670d is about $2500 new. I'll probably end up with 3677 unless I can find a good deal on the 3678, or maybe even the bigger stuff like the 4722 or 4670d if I can find a deal when I'm ready to order. I'm not sure the 3722n would be much of an upgrade to justify it over the 3677 at new prices. I hadn't thought about used but it's worth a look.

I was searching earlier and found a guy selling some 4638 a few months ago, he was selling 3 for $750.

I agree hard to justify. That's pretty good deal on the LF cabs
MKtheater's Avatar MKtheater 11:28 PM 01-28-2014
Well if one does not mind the shipping cost of used it is a great bargain. I bought my 3622N's for around $700 each new and my 4675c-lf's used and beat to crap,cabinets only, for $400 each! If I knew back then about the 2380 horn I would have swapped out the 2360 and it would fit still! I don't even think the 4722 would compete with the 4 inch CD, 2380 horn and dual 2226's and smaller than the 4722n! Having said that my horn arrays are really kick butt for $500 each!
Reddig's Avatar Reddig 11:45 PM 01-28-2014
That would have been a killer setup but ya your dual stacked DRs must sound incredible along with the IB. Great thing about used JBL is you can just rebuild the drivers or order by part what u need. I got the space behind screen for 4675Cs with big horn or even just a 47/3722n either one if I get a chance to buy once I'm able to spend some money it's on. Shipping tho is sooo much $$$. You prolly used freight MK? What were shipping prices for the three 3622ns or the 4675c-LFs? I'm wondering what to expect. You def are the king of having literally hundreds of speakers and subs shipped.
Reddig's Avatar Reddig 11:58 PM 01-28-2014
MK did you remember a substantial difference going from the 3622N to the 4722N? 4722 has the lower cross point which helps vocals it seems . I hear the 3722n all the time at a local cinema in their smallest room on a almost 20 ft screen
with 7 rows of seats and it always sounds incredibly dynamic and smooth. Man I would love to a/b those two speakers along with the 3677 in the same room. Love to hear the difference an extra 15 and bigger horn would make. Would like to experiment running them crossed at 40hz to get more low end impact from the mains and leave the real low stuff to subs. Be fun to experiment.
cdy2179's Avatar cdy2179 06:36 AM 01-29-2014
Quote:
Originally Posted by Reddig View Post

What were shipping prices for the three 3622ns or the 4675c-LFs? I'm wondering what to expect. .

I know when I bought the 3677s from Full Compass it was under $200 shipping, and the forum member who bought them from me I think he paid about the same Frieght charge to get them.

However, I almost bought 3 used 4622n (much larger and heavier), those were being shipped from NE states (if I remember correctly) to Louisiana and it was going to cost $500-600 through Yellow Freight. Some shippers want over $1000, I called every Freight shipper I could find, UPS, FEDEX etc.
MKtheater's Avatar MKtheater 08:39 AM 01-29-2014
Shipping will vary greatly. I bought a full 7.0 system from performance audio consisting of 3 3622N's, 4 8340A's, and all the brackets and mounts for the surrounds. Since everything came to $3000 the shipping was free! The 4675C's were much bigger and heavier, each one weighed 250 pounds and 3 of them took 2 pallets. A great deal on shipping is $300 per pallet but usually $500 per pallet and depending pallet size and distance. I don't care what anyone else has on this forum but 3 4670d's with dual 2226's and 4 8350's for surrounds would compete with any system period!

I never owned the 4722N, just the top section. I DIY a clone of the 3731 with that awesome mid section with dual horn loaded 6.5 inch woofers. That clone was better than the 3622's with a single 15 but then I had to try the 4675C's and it was even better.
BigCoolJesus's Avatar BigCoolJesus 12:46 PM 01-29-2014
Just to chime in on the 3677's:

I recently upgraded to an LCR configuration of three 3677's and two 8350's (for surrounds)....and I can honestly say I have never heard this kind of sound before in my HT room. Before now I spent two years quickly stepping through all the Paradigm models and than jumped to Klipsch for more of an "open/effortless" sound since I only watch movies (no music) in my HT room. Well, now having jumped to the 3677's that sound is here finally. I am not trying to exaggerate but this is the sound I have always been wanting and wishing I had in my room. Clarity is a step above what I have heard before in my room (even considering I had the Paradigm Signatures at one point). Movie soundtracks are effortless. Completely effortless. And I am absolutely loving the built in roll-off around 12kHz...I have been able to turn the volume up louder than ever without a single "harsh" scene from the upper frequencies (something my Klipsch's did often to my ears) YET I am still hearing more detail/sounds than before so the roll-off is not a negative aspect as I originally feared it would be (due to thinking it would eliminate possible sounds from the soundtracks). And they blend EXTREMELY well with my Rythmik F25's. About as close to seamless as possible I would venture.

Oh and this is all from running them off of my Anthem MRX710. No external amplification outside of the receiver (90w/all channels driven rating). And they still have plenty of headroom at reference level, whether I am siting in my first row of seats (12ft back) or second row (18ft back).

So, in short, even going with "just" the 3677's will be the best decision you can make. Absolutely no way you'll be disappointed smile.gif
MKtheater's Avatar MKtheater 03:24 PM 01-29-2014
Does anyone know what the differences are between the 3677, 3678, and 4670D CD and horns are?
cdy2179's Avatar cdy2179 04:05 PM 01-29-2014
I think the cd spec wise is similar to the one in the 3622/3722, just doesn't extend as high. As for the horn, all I know is I tried out different horns while I had the 3677, including the 4pi horn and I thought the stock jbl horn was smoother. Other than that it's crossed at 1200hz vs 1000 in the 3678. The larger horns with larger cds like the 4670 cross around 700-800.
cdy2179's Avatar cdy2179 04:18 PM 01-29-2014
Quote:
Originally Posted by BigCoolJesus View Post

Just to chime in on the 3677's:

I recently upgraded to an LCR configuration of three 3677's and two 8350's (for surrounds)....and I can honestly say I have never heard this kind of sound before in my HT room. Before now I spent two years quickly stepping through all the Paradigm models and than jumped to Klipsch for more of an "open/effortless" sound since I only watch movies (no music) in my HT room. Well, now having jumped to the 3677's that sound is here finally. I am not trying to exaggerate but this is the sound I have always been wanting and wishing I had in my room. Clarity is a step above what I have heard before in my room (even considering I had the Paradigm Signatures at one point). Movie soundtracks are effortless. Completely effortless. And I am absolutely loving the built in roll-off around 12kHz...I have been able to turn the volume up louder than ever without a single "harsh" scene from the upper frequencies (something my Klipsch's did often to my ears) YET I am still hearing more detail/sounds than before so the roll-off is not a negative aspect as I originally feared it would be (due to thinking it would eliminate possible sounds from the soundtracks). And they blend EXTREMELY well with my Rythmik F25's. About as close to seamless as possible I would venture.

Oh and this is all from running them off of my Anthem MRX710. No external amplification outside of the receiver (90w/all channels driven rating). And they still have plenty of headroom at reference level, whether I am siting in my first row of seats (12ft back) or second row (18ft back).

So, in short, even going with "just" the 3677's will be the best decision you can make. Absolutely no way you'll be disappointed smile.gif


Good review. So what you think of their mid bass?
BigCoolJesus's Avatar BigCoolJesus 04:54 PM 01-29-2014
Quote:
Originally Posted by cdy2179 View Post

Good review. So what you think of their mid bass?

No complaints or "wanting".

Now, take what I say with some grain of salt as I have not/do not listen to music in my HT Room, so my impressions are all Blu-ray movie based only. That said, there is nothing lacking about any soundtrack I have heard so far. Whether it's a very heavy dialogue movie (Sherlock Holmes really shines with these speakers as every single difference in accents and tone can be heard so clearly) or flat out action (Battle LA absolutely rocked my room), everything just plays effortlessly. That is the biggest word I can use: effortless, across all frequencies.
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