I change plan of using this https://www.hypex.nl/product/fusionamp-fa251/155
to this https://www.sweetwater.com/store/detail/XLS1002--crown-xls-1002-power-amplifier/reviews and this
https://www.minidsp.com/products/minidsp-in-a-box/minidsp-2x4-hd
Advice welcome.
I have one sub, with plans to grow it to 4. The mini will have me covered. and I read it will go to 10 hz.
I have a feeling the amp crossover directly to subwoofer won't be enough. Some boost is necessary.
The pairing looks capable and its budget conscious to me. These days most welcome.
I want to built build one simple micro cube (sealed) every couple weeks until totaling four. A pair of 1002 xls should easily power them, the minidsp will filter just whats needed. I feel like playing with 8 inch minis because I already had one nice one to start with. A single start up 15" jbl experiment will be later down the road. If subwoofer play stays in action. I had intentions to build a two channel that simple and sounds good. Now it could use some bass. It still sounds great, the novelty soon wears off. Theres that plus I tested a sub with the system, it sold me on the whole idea in an instant.
to this https://www.sweetwater.com/store/detail/XLS1002--crown-xls-1002-power-amplifier/reviews and this
https://www.minidsp.com/products/minidsp-in-a-box/minidsp-2x4-hd
Advice welcome.
I have one sub, with plans to grow it to 4. The mini will have me covered. and I read it will go to 10 hz.
I have a feeling the amp crossover directly to subwoofer won't be enough. Some boost is necessary.
The pairing looks capable and its budget conscious to me. These days most welcome.
I want to built build one simple micro cube (sealed) every couple weeks until totaling four. A pair of 1002 xls should easily power them, the minidsp will filter just whats needed. I feel like playing with 8 inch minis because I already had one nice one to start with. A single start up 15" jbl experiment will be later down the road. If subwoofer play stays in action. I had intentions to build a two channel that simple and sounds good. Now it could use some bass. It still sounds great, the novelty soon wears off. Theres that plus I tested a sub with the system, it sold me on the whole idea in an instant.
It's generally a bad idea to chain more than one crossover. Use either the one in the Crown amp, or the miniDSP, not both.
It's also a better idea to EQ each sub by itself, since the response of a sub in a room is highly dependent on position. None of them will be identical.
Don't overlook the need to EQ the mains individually too.
8" sealed subs will be quite limited in maximum SPL and low frequencies. You can't EQ that because they will just stress and bottom out at higher levels. But perhaps this is a very small system.
Without knowing a thing about your mains and subs, other than 8" sealed, and without knowing a thing about distance to the LP or room size, it's impossible to recommend anything further. I suspect it's a bit over-powered, under Eq'ed, but hard to say. You might benefit from more amp channels with less power, and a second miniDSP.
It's also a better idea to EQ each sub by itself, since the response of a sub in a room is highly dependent on position. None of them will be identical.
Don't overlook the need to EQ the mains individually too.
8" sealed subs will be quite limited in maximum SPL and low frequencies. You can't EQ that because they will just stress and bottom out at higher levels. But perhaps this is a very small system.
Without knowing a thing about your mains and subs, other than 8" sealed, and without knowing a thing about distance to the LP or room size, it's impossible to recommend anything further. I suspect it's a bit over-powered, under Eq'ed, but hard to say. You might benefit from more amp channels with less power, and a second miniDSP.
The Crown has a crossover defeat I intended to use it with any other. Its not the case, I actually got it to sound proper, very happy with it as is now.
I crossed over at 100 hz on the low pass. the option is there to do a high pass, and also band pass. for people doing full active, it looks like a good category for that as well. Or you can run the hp in one side, the Left while low passing on the Right simultaneously. Then there is gobs of power to use it.
Its so universal and sounds good. Can't ask for more. Its an aquire I look back on asking why I didn't try it sooner? https://www.crownaudio.com/zh/product_documents/5055568_xlsdc2_mnl_print_050615-pdf
Its a nudge to start trying more PA gear. BIG full range speakers, or active. A system I can crank out doors while doing the yard work and cracking a beer.
What subwoofers are we talking about?
It's best to just model and simulate them first incl boosts to see what they are capable of.
It's best to just model and simulate them first incl boosts to see what they are capable of.
I'm back to thinking its a good idea, (minidsp). I will stay with that initial plan. The miniDsp will let me taylor things in more detail. I'm going to refresh on its capabilities. I'm also wondering if it will allow me to get more gain from the PA with RCA's.
I have been considering a couple sub drivers. And mix of 8"s and 10's, 2x2. Whichever I decide, I will implement them one at a time.
I'm stoked at how the Rel is doing. Its musical accuracy and detail with hard punch is up to par with best bass I've heard. I did svs PMc the M&Ks and all kinds of subs large and small. Except for horns. I throw everything at this 8. It does a great job keeping up but can use a little bit of ultra fine tuning in a couple areas.
I simply unhooked the broken factory amp plate instead of having it repaired to function only to break down again later. I left everything else factory. I was paranoid about shifting the parameters and the sound even a single bit so I even left the plate and everything 100% intact.
I'm considering these in single tight sealed cabs. If I can duplicate how the first one sounds I'll be good with that.
https://www.parts-express.com/Dayton-Audio-RSS265HF-4-10-Reference-Series-HF-Subwoofer-4-Ohm-295-460
https://www.parts-express.com/Dayton-Audio-RSS210HF-4-8-Reference-Series-HF-Subwoofer-4-Ohm-295-456
Four subs might be over kill. A single good preforming 8 has a ton of impact in suitably matched room.
I'll get the next sub built and manage to find a miniDsp 2x4 and start there. I should say begin there..
I'm open to changes along the way, if a supplement looks better somewhere.
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ATM I see having to use less gain the only benefit of adding more than two. As it is I dont even push the single sub up to fuller limits and I'm content with sound. I don't feel a need to rattle fillings out or anything =)
The reason to use more than one sub is not for additional SPL or bass gain. Bass in a smalll room is supported by room modes. The number of modes determines the smoothness of bass response below the Schroeder frequency. The effect of room modes is positional. One sub cannot excite as many modes at a single listening position as two or four. The purpose of multiple subs is to excite as many room modes as possible smoothing out bass response. If a mode is not present, or the LP sits in a modal null, it is impossible to EQ the dip out. All EQ can ever do is change the intensity of existing modes.
Sub positioning has a huge impact on the resulting response. Each sub position can be optimized with measurement softare. In fact, tuning "by ear" ...optimizing without measurement is impossible.
Sub positioning has a huge impact on the resulting response. Each sub position can be optimized with measurement softare. In fact, tuning "by ear" ...optimizing without measurement is impossible.
Bass nodes, the biggest one. Also the reason I thought about mixing sizes up. If its even necessary. They are making small cones sound better in more retrained quarters.
Mixing sub sizes doesn't change room modes at all. You can only move the sub position to excite the existing modes differently. Small cones are challenged by the need for much larger Xmax for adequate undistorted SPL at 20Hz, for example, vs larger cones. Using more of them doesn't really help that aspect.