Home audio thread

Technology and Gaming
#1

So I got the home audio system I shown in the Pimp Your… thread working. They just sound amazing. As if I was there, it’s incredible. But the thing is, they lack bass. Like completely.

I think it’s partly due because because the foam membrane around the speakers is completely ruined:

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(The other one suffers the same)

And also because they just weren’t designed to put out bass. So I got two questions:

1: Is there a way to replace that ring of foam?
2: Where could I find a decent subwoofer that has an impedence of 8 ohms or less ? (Or else my amp won’t allow it)

By the way, the whole thread is for Home Audio in general.

#2

you still got warranty on that?

#3

They’re like 15 years old, so I don’t think the warranty is still valid.

#4

You should find a whole membrane replacement if you really want any effect. The coil probably works fine but you will not hear what it does since theres simply no physical connector to push the membrane out and back.

There is probably a lot of distortion in low frequencies because of that too, so be aware of that.

I personally like - and it’s partialy because of a profession - reference monitors. All ‘sound systems’ and especially computer speakers (no matter how expensive) has non linear characterestics, usually boosting some frequencies and cutting others. I like to hear things as they were designed.

Currently I’m using this: https://www.alesis.com/m1active520, but I plan to change them because of 5’’ low frequency woofer and bass reflex on the back (placing them correctly in different rooms is real pain in the ass).

Here’s my plan for future purchase: https://www.krksys.com/krk-studio-monitor-speakers/rokit/rokit-8.html

#5

Thanks. Do you have any tuts on that?

Yeah.

Holy crap that looks nice. A bit over my budget though haha.

#6

the lowest speaker is built for bass btw.
Anyways, just buy new speakers to screw into that box, shouldn’t be hard to find decent ones with google.
Just measure the diameter and search one.

EDIT:
I suggest this: https://shop.mtx.com/p/l_232/MTX_Audio_22_JackHammer_2_Ohm_Subwoofer/listing.html :retard:

#7

Are you sure the amp has enough wattage to power them?

BTW edit: I use these

with a Sansui amp.

(Don’t have that desk anymore)

#8

Wouldn’t I be loosing sound quality by putting a different speaker there ? 'Cause apparently Jamo are pretty expensive so I’d have to buy a lesser quality one to fit into my budget.

#9

krk systems makes some nice stuff. We use them as the secondaries at the studio I work on. Think they are the Rokit 6 G2CB. Also have a pare of Dynaudio Acoustics (no idea of model, just weren’t cheep) But mostly overkill for a home setup.

I just use a Yamaha receiver with some bookshelf speakers. They can belt out the sound with minimal distortion.

#10

Are you sure the amp has enough wattage to power them?

#11

how high is you budget?

#12

Well I’m not sure what you mean by that, but they work just fine now, so I guess so. But just to be sure, how could I verify this ?

I don’t know, maybe a hundred bucks for the two speakers.

#13

oh and what diameter do the old ones have?

EDIT: alright… if you really notice the difference between a 500$ speaker and a 50$ speaker, you shouldn’t buy a new one.
but I don’t think there is a way to fix the problem without new ones.

#14

Check for any inscription on writing on the amp that says the wattage output. Report back.

Or you could try with some other amp… ask a friend for one.

#15

Well I got this in the back of the amp:

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(Sorry about the blurriness, but my phone’s camera just sucks)
That’s pretty much the only thing that mentions watts on the receiver.

and this is the back of the speakers:

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#16

I can’t say I’m 100% sure, but I think that the amp doesn’t have enough power to drive them.

I don’t know if the output wattage is 120 per channel (which would be good), or 120 in total (bad).

#17

Well they play very well (except for the bass), so I don’t see what would the problem be.

#18

It doesn’t work like that.

When I plugged mine (that are smaller) to a lesser amp, treble and mids sounded great, but the bass was muddy and had very low volume.

The one that I have now is overkill for these speakers (80 per channel), but it works superbly. That’s why I think you may have the same problem.

#19

Oh I see. Well, I’m gonna try to find foam rings to replace the damaged ones, then I’ll see if the amp is the problem. By the way, are there any universal refoam kits ? Because I tried to search for Jamo rings but came up with nothing =/

#20

Remember to match the output impedance of the amp to the input impedance of the speakers. They should be the same for the best results. If you can’t find a match, make sure the amp output impedance is lower that input in speakers. In this case if you turn up your amp to maximum your speakers will be safe.

Also, since you will be opening your sound system for renovation, you should check what are your crossover frequencies to see what kind of speaker would be best. Usually with 3 membranes low freq bandwidth oscilates from the lowest possible to about 150, 200 Hz. Make sure you check that twice (it’s always in the specification). You wouldn’t want to discover by accident after purchase that you bought speaker up to 200Hz, while the crossover sends signal up to 250 Hz and that you have a ‘hole’ in overall bandwidth. :wink:

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