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cjwest10
(@cjwest10)
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16/06/2019 2:32 pm  

Hi there.  I've very much a newbie although I've been following 123Toid's Youtube videos for a long while.  I would say I'm more of a woodworker who is interested in making speakers rather than a speaker enthusiast interested in woodworking.  We recently purchased three large slabs of reclaimed spalted pecan that I want to turn into a modular home theater system.  To this end, I need to design and build two subwoofer cabinets that will be positioned in the front of the room.  The 12 inch Dayton Ultimax speakers are at the top of my list for drivers, although I'm open to other suggestions. According to the specs I think that I would need to purchase two 1000w Dayton plate amps too power the subs. At around $360 per amp, this is cost prohibitive for me.  My question is are there amp alternatives for my subs?  There will be a closed cabinet between the two subs where I will store the receiver and other equipment so I don't necessarily need the amps to be part of the box.  Can anyone recommend a more cost effective way to get the most out of these drivers?  

Thank you,

Cara


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oneway
(@oneway)
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Joined: 6 months ago
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16/06/2019 3:08 pm  

crown xls 2502 or 2002 would be my choice..


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123Toid
(@123toid)
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Joined: 2 years ago
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17/06/2019 12:28 am  
Posted by: cjwest10

Hi there.  I've very much a newbie although I've been following 123Toid's Youtube videos for a long while.  I would say I'm more of a woodworker who is interested in making speakers rather than a speaker enthusiast interested in woodworking.  We recently purchased three large slabs of reclaimed spalted pecan that I want to turn into a modular home theater system.  To this end, I need to design and build two subwoofer cabinets that will be positioned in the front of the room.  The 12 inch Dayton Ultimax speakers are at the top of my list for drivers, although I'm open to other suggestions. According to the specs I think that I would need to purchase two 1000w Dayton plate amps too power the subs. At around $360 per amp, this is cost prohibitive for me.  My question is are there amp alternatives for my subs?  There will be a closed cabinet between the two subs where I will store the receiver and other equipment so I don't necessarily need the amps to be part of the box.  Can anyone recommend a more cost effective way to get the most out of these drivers?  

Thank you,

Cara

First of all I am jealous of your Pecan slabs 🙂  Live down south?  Seriously, that is awesome that you have that.  I feel your pain with the Dayton plate amplifiers. They really are expensive!  I completely agree they are cost prohibitive, especially with the alternatives, that can power both of those Ultimax subwoofers.  I would be looking at this Behringer Amplifier.  It is less than the cost of 1 plate amplifier and even includes DSP.  That way you can easily dsp your subwoofer for your room.  A huge benefit. Of course if you do not care about DSP, you could get the non DSP version and save about $50.  Personally, I think the extra $50 is well worth it.  You can put a high pass on it if you go ported.  If sealed, you can help extend the low end and even out the response due to room gain and or nulls.  Definitely a plus.    


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cjwest10
(@cjwest10)
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18/06/2019 10:17 am  

Thank you very much for the recommendation.  I am indeed from the south. Austin to be precise and I purchased the lumber from a local mill that that salvages dead or dying trees from the community.  I'll post pictures as I get further into the project and will likely have many more questions.


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123Toid
(@123toid)
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18/06/2019 11:29 pm  

Nice.  I had a feeling 😉  I lived in TN for a few years and loved it.  Maybe someday I'll move back.  Who knows.  Keep us updated.  I can't wait to see how it turns out.


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bjaurelio
(@bjaurelio)
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Joined: 4 months ago
Posts: 54
07/08/2019 2:36 pm  

I second the Behringer or Crown amplifiers with dsp. My 15" sealed ultimax extends below 20Hz. I can't wait to see pics of your build. Spalted pecan is beautiful wood.

Recently, I bought a board for a monitor speaker project and realized the wood can be fairly weak. For a subwoofer, you probably will probably want to laminate it to some mdf or plywood. The pressures inside a subwoofer enclosure get pretty high.


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Speaker Builder
(@speaker-builder)
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Joined: 3 months ago
Posts: 251
07/08/2019 5:15 pm  

Hi guys ... just a small note for you ... the Crown XLS amplifiers already include the low and high pass filters you need for subwoofer and surround setups.  They can even be used for biamping speakers.  It's all in the setup menus.

Also, a sealed enclosure can theoretically go right down to 0 hz with the woofer cone just sitting there. The problem is that most people wouldn't be able to hear much below about 30 or 40 hz, although we can detect a presence below that... the room will feel haunted.

 


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shrub0
(@shrub0)
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28/08/2019 6:44 pm  

Interesting, are the subs going to be made from Pecan or just the home theater console?


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bjaurelio
(@bjaurelio)
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30/08/2019 4:55 pm  

The Crown amps do include filters like the Behringer amp, but for HT use, they are a better value. If stressing the amps more in a pro audio environment, the higher reliability of Crown is a much bigger advantage.


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