Best sub/bass for HIFI 4645c or sub 1500 in sealed boxes?

[Kalle]

I have the opportunity to buy either 2 JBL 4645c or 2 JBL sub 1500 i sealed boxes. Most important for me is music but I also use it for HT. I`we read that some people prefer 2242 for HIFI and sub 1500 for HT. I guess the 4645 is another leage in output but dont go as low as sub 1500. Will 2 sub 1500 b to litte if iIlike to play loud in a medium size room? I have big amps for them.

Whitch one do you prefer?

Regards Karl

[Mr. Widget]

The 4645 will play significantly louder, the Sub1500 in a sealed cabinet is my favorite for music, but it won't play super loud especially in a larger space. I had two Sub1500s in larger vented cabinets and they were able to play with great authority in a very large room, but they were best for HT. For music I preferred them in sealed boxes.

This is all quite subjective though... you might feel differently about these.


Widget

[hlaari]

I have the opportunity to buy either 2 JBL 4645c or 2 JBL sub 1500 i sealed boxes. Most important for me is music but I also use it for HT. I`we read that some people prefer 2242 for HIFI and sub 1500 for HT. I guess the 4645 is another leage in output but dont go as low as sub 1500. Will 2 sub 1500 b to litte if iIlike to play loud in a medium size room? I have big amps for them.

Whitch one do you prefer?

Regards Karl

I have owned 2256g, sub1500 and 4645c and for medium size room I like sub1500 and 2256g better
for larger room 4645c will do a better job than sub1500 because they have much more output

Like Widget said you can use sub1500 in both sealed or vented enclosure

2256g have more output than sub1500 perform close to sub1500 and they can also go much lower than 2242h in the 4645c

[Kalle]

Would a smaller box than the 4645c be better? What I can read the synesis s1 (6,5ft)only have a little less output and less group delay than the 4645(8ft). (not a problem in home enviorment) but goes as deep or deeper?!

Mabye I should think of my ears and settle with the sub 1500 It seems to be a very nice speaker If I`m not happy mabye I can get 2 more.

For reference earlier I had 2 2241 feeded by about 6-700w each and I thougt that was a nice output (but not the best sound)

Mabye I will buy JBL LSR32 for them also if it makes any diffrence.

Regards
Karl

[Mostlydiy]

If I`m not happy mabye I can get 2 more.

That is not as easy as you think. They are quite rare.

/Mostly

[Kalle]

That is not as easy as you think. They are quite rare.

/Mostly

Actually I have noticed that. I emailed "Niklas Nord" that I know had a lot of them but havent got any awnser. Is he active? Any thougts on box sice of the 2242?

/Kalle

[Bobecca]

Would a smaller box than the 4645c be better? What I can read the synesis s1 (6,5ft)only have a little less output and less group delay than the 4645(8ft). (not a problem in home enviorment) but goes as deep or deeper?!

Mabye I should think of my ears and settle with the sub 1500 It seems to be a very nice speaker If I`m not happy mabye I can get 2 more.

For reference earlier I had 2 2241 feeded by about 6-700w each and I thougt that was a nice output (but not the best sound)

Mabye I will buy JBL LSR32 for them also if it makes any diffrence.

Regards
Karl

I am intrested in why you say that 2241 didnt have the best sound?

I am running a pair of 4641 subs powered by crown MAI 5000 in y-link mode. No problem with good tight bass sound from those two cabs. The bandpass is between 25-80hz.

Maybe the good bass sound is also due to that I have solved my modal issues in my room and distributed the modal resonances evenly througout the room. The bass response is totally flat in my room.

I listen to any kind of music with diffrent sources. CD, vinyl, music and films from computer.

[Kalle]

Actually for me they were ok. Most I think it was because placement and enclosure (one big box), SR enclosure (4719x, dual 2241 tuned to 40hz) no damping in the box. So the biggest reason they go away is because that the boxes are big. And also because people say that the 2242 sounds so much better (And deeper). But actually I don`t know and want to try something new. I have no doubts that your 4641 sounds good and leave a nice output I quess the enclosure is the key in this case.

I am intrested in why you say that 2241 didnt have the best sound?

I am running a pair of 4641 subs powered by crown MAI 5000 in y-link mode. No problem with good tight bass sound from those two cabs. The bandpass is between 25-80hz.

Maybe the good bass sound is also due to that I have solved my modal issues in my room and distributed the modal resonances evenly througout the room. The bass response is totally flat in my room.

I listen to any kind of music with diffrent sources. CD, vinyl from computer and if I want to see movie I do that as well with my system.

[ivica]

Actually for me they were ok. Most I think it was because placement and enclosure (one big box), SR enclosure (4719x, dual 2241 tuned to 40hz) no damping in the box. So the biggest reason they go away is because that the boxes are big. And also because people say that the 2242 sounds so much better (And deeper). But actually I don`t know and want to try something new. I have no doubts that your 4641 sounds good and leave a nice output I guess the enclosure is the key in this case.

Hi Kalle,

From JBL technical notes, it seems to me that 2242H used "in pair" would be very good solution.
But if single driver (per box) is used it seems to me that 2241H would give more linear response at lower frequency (without the EQ)
May be some more data (and JBL suggestion) can be find in: Technical Notes Volume 1, Number 22 :
http://www.cieri.net/Documenti/JBL/T...1,%20No.22.pdf

"...At 80 watts input, the third harmonic distortion of the 2242H is about 10 dB lower at 40 Hz than that of the 2241H, while second harmonic distortion is about the same....
......In the mid-band, between 100 and 500 Hz, the distortion in the 2242H is about 7 to 10 dB lower than in the 2241 H. Remember that, in these curves, we are running the 2242H at 80 watts, as compared with 60 watts for the 2241 H.......
....The 2242H operates in similar alignments to the 2240H, but with higher input power capacity, maximum output capability, and greater linear excursion. The 2242H has excellent characteristics when used in moderate sized subwoofers, such as the JBL 4645B. In this application, a 225 liter (8 cubic foot) enclosure is tuned to 25 Hz, giving a typical over-damped response that extends smoothly
from 100 Hz down to 25 Hz. Such a curve can easily be equalized for flat response over that bandwidth, particularly if multiple subwoofer modules are used. In this usage it is the functional replacement for the 2245H, as it also has approximately the same linear excursion (Xmax) and volume displacement (VD) capability..."

Regards
Ivica

[hjames]

Actually for me they were ok. Most I think it was because placement and enclosure (one big box), SR enclosure (4719x, dual 2241 tuned to 40hz) no damping in the box. So the biggest reason they go away is because that the boxes are big. And also because people say that the 2242 sounds so much better (And deeper). But actually I don`t know and want to try something new. I have no doubts that your 4641 sounds good and leave a nice output I quess the enclosure is the key in this case.

Love my 4641 - plays nice and low for films and the cabinet
and isn't too darned big (with a bit of disguise over in the corner).

[pos]

Heater, is it a Sontaran or do you have a 4:3/16:9 scaling problem on your TV?

[martin_wu99]

I have the opportunity to buy either 2 JBL 4645c or 2 JBL sub 1500 i sealed boxes. Most important for me is music but I also use it for HT. I`we read that some people prefer 2242 for HIFI and sub 1500 for HT. I guess the 4645 is another leage in output but dont go as low as sub 1500. Will 2 sub 1500 b to litte if iIlike to play loud in a medium size room? I have big amps for them.

Whitch one do you prefer?

Regards Karl

IMO,they are all not very suitable for hifi,only for HT,but if you use 4645 with 2245,it will be ok for hifi

[martin_wu99]

Love my 4641 - plays nice and low for films and the cabinet
and isn't too darned big (with a bit of disguise over in the corner).

Heather,who's word on the board?what that mean?

[hjames]

Heather,who's word on the board?what that mean?

My wife had a friend from church make that tile for her ...

Its a slight rewording of a quote from the movie: The Best Exotic Marigold Hotel

http://www.imdb.com/title/tt1412386/?ref_=fn_al_tt_3
The manager and owner is always saying:

Everything will be all right in the end...
if it's not all right then it's not yet the end.

Heather, is it a Sontaran or do you have a 4:3/16:9 scaling problem on your TV?

Yep - Its a Whoovian screen of a Sontaran, but its an old picture.
See my Avatar - I've since changed the TV as well as the carpet!

[Kalle]

IMO,they are all not very suitable for hifi,only for HT,but if you use 4645 with 2245,it will be ok for hifi

Both 2242 and sub 1500 or only 2242?

I´m thinking of the LSR32 and sub 1500 as my hottest choice.

/Karl