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Discussion Starter #1
couple questions I am looking at upgrading my Keiga 52100 plate amp to a EP4000 amp or the sorts. I am running Passive radiator setups in my builds. My question is that I read the HPF is defeatable on the amp. If this correct and is it as easy a switch. I would like to have it set around 15hz or so like my Keiga amp. that being said what would I need to setup the HPF for it. I have a velodyne sms-1. would that work if it will I would also like to know what other simple options there would be for this. any and all thoughts are appreciated. also if you would recommend a different amp I would be good. I am not looking at the behringer inukes as the HPF is set at 20hz and I want to be below that. I am looking at running bridged at 4ohm and want at least 2000+ watts. thoughts everyone. want to place an order for something this weekend so I can work on it next weekend.

thanks,
 

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The EP4000 offers around 1600w-2000w bridged mono @ 4ohms, yes the high pass filters are defeatable via the dip switches on the back.
 

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Discussion Starter #3
what would you recommend for setting up the HPF. That is my sticking point as I have never run an amp that has not had one incorporated.
 

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I recommend not using a high pass, but if you need one (which there's not enough info to know) it's a fine safety measure. It's all system/design dependent.
 

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Discussion Starter #6
my concern is that I run passive radiator setups and ported setups on my house subs. When I originally built them the modeling showed without the HPF my subs would be hitting xmax below the HPF set point with the power id be throwing at them. Then my concern is killing the subs when watching movies. let me know what specific info you would need on my end to help out but even with the Keiga's 1000w in my design if I did not have the HPF at 15hz the excursion would be way to high below 15hz

http://www.keiga.com.tw/products_kgnd52100.html
 

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Quote:
Originally Posted by Mrkazador  /t/1520256/ep4000-question#post_24422456


The MIC2200 is cheap and can used as a high pass filter. Plus it can boost voltage if your receiver is lacking.

+1 got one


a band of parametric to boot
 

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Discussion Starter #9
Interested in this idea of the mic2200. Thoughts on how I would incorporate. Had looked but if someone is currently using it in that fashion how is the hookup and setup
 

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You simply place it between the prepro/avr, and the amplifier, in and out ... that's it
 

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Looking at other options for high passes, there's many. The MIC2200 is a simple piece that's inexpensive and available locally oftentimes at the mega music stores (SamAsh, Guitar Center) as well as used all over. They're so affordable, I'd shy away from used unless it was almost a gimme.


Other options include dsp, miniDSP in particular. Much more versatile and powerful.
 

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Discussion Starter #14
Back to the ep4000. I have been thinking about this some more and realized I have a velodyne SMS-1 unopened in a box in the basement. Since I have the sms-1 still in the box I did some much needed reading up on it. What I think is an upside is that I can eq up to 3 subs with the SMS-1 all be it they would be eq'd all the same which I am fine with. That being said I am going to use the SMS-1. My current option for an amp is the ep4000 but I am open to all suggestions and opinions for an amp were I can use the SMS-1 to set the HPF. I do not want to be limited to an amp were I can not defeat the HPF that is 20hz or above as that will not work for me. My set up has 2 subs Both subs enclosures are passive and being run by plate amps in there own enclosure. So I would eliminate the plate amps from the setup. I would like to go with 1 amp(preferably) to power both subs and be able to eq them and set the HPF through the SMS-1. Each enclosure is showing 4ohm from the subs. Both enclosures are passive radiator setups thus the need for the HPF. I am planning on setting the HPF to 15hz through the SMS-1 as that is as low as I can set it. Both enclosures can handle a little more than 1500w each at that frequency. So the question is can the amp handle running both enclosures. Or would I need 2 of them or maybe 2 of the ep2000's. Or should I look at a different amp altogether?? Thoughts....suggestions.
 

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Quote:
Originally Posted by Bstloukal1  /t/1520256/ep4000-question#post_24427349


Back to the ep4000. I have been thinking about this some more and realized I have a velodyne SMS-1 unopened in a box in the basement. Since I have the sms-1 still in the box I did some much needed reading up on it. What I think is an upside is that I can eq up to 3 subs with the SMS-1 all be it they would be eq'd all the same which I am fine with. That being said I am going to use the SMS-1. My current option for an amp is the ep4000 but I am open to all suggestions and opinions for an amp were I can use the SMS-1 to set the HPF. I do not want to be limited to an amp were I can not defeat the HPF that is 20hz or above as that will not work for me. My set up has 2 subs Both subs enclosures are passive and being run by plate amps in there own enclosure. So I would eliminate the plate amps from the setup. I would like to go with 1 amp(preferably) to power both subs and be able to eq them and set the HPF through the SMS-1. Each enclosure is showing 4ohm from the subs. Both enclosures are passive radiator setups thus the need for the HPF. I am planning on setting the HPF to 15hz through the SMS-1 as that is as low as I can set it. Both enclosures can handle a little more than 1500w each at that frequency. So the question is can the amp handle running both enclosures. Or would I need 2 of them or maybe 2 of the ep2000's. Or should I look at a different amp altogether?? Thoughts....suggestions.

I am not familiar with the SMS-1, but, if it were me, I would sell the SMS-1 and go with either a Behringer iNuke3000dsp or an EP4000 with a MiniDsp. I would prefer to have seperate EQ ability on each sub over a global EQ for them all collectively.
 

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Actually, it benefits you to have individual time delay primarily, not individual EQ'ing, typically one EQ's globally .. ie., all subs as one entity. Possessing individual low pass slopes is helpful as well, maybe to a lesser extent.


Bstloukal1, the SMS-1 is a nice piece, I've got one too. EP4000 EQ'd by a SMS-1 is a fine combo, then you can physically place the subs to help optimize the blend.


As Marty said, the INukes are powerful options too, with on-board DSP ... adjustability in both time delay, EQ'ing, high passing, etc.
 

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Discussion Starter #17
Ok I think my plan now is to pick up both the EP4000 and the 3000dsp. I have held off on purcchasing of the DSP's as when I originally started researching them I read I could not defeat the 20hz HPF. I've been reading up on that lately as all the DSP's are currently on sale. And I am still a little confused here. I have seen that LTD has posts that by adjusting the HPF and LPF you can effectively get to 15hz. But also have read that people are saying that there is an option in the DSP software were there is an option to turn off the HPF. Does anyone know if this is the case. The more I read the more I see descrepency's in the information. Being the first time I am moving to the pro amp style I want to move cautiously on this as that's just my mentality. Also, I am currently working in adding a 3rd sub to the mix over the next month. It is a dual 12 with quad 15" passive radiator. Not sure if I fill be running all 3 subs at one time but my goal is to get familiar with the pro amps with my current subs to see were I need to be this this beast. The worst case scenario is I pick up the DSP and it sits unopened for a while do to me effectively not being able to adjust the HPF. As far as my budget I am good up to 800$ or so on each. I don't think that will be a problem as I can pick up multiple Behringer's for the price I had slated for 1 amp.
 

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I'd stick with the INukeDSPs, as many as needed, keep it simple.


The only reason I'd get the EP4000, is if you had outboard, stand alone EQ'ing/time alignment/DSP. With the above INukeDSP, you're covered.
 

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Discussion Starter #19
I ordered up a 6000dsp a little earlier. I think I may do another but am weighing the advantages of doing the 3000dsp now for the second amp but don't think really are any as I can just adjust the gain down on another 6000dsp if needed as I do not believe I will need that power for some other things. But could always use it if I change the system up. Now I need I find some speakon to raw speaker wire. Thought I saw a link somewere yesterday that peoe were using. So need to dig that up. Also now need to post for sale a few plate amps as I do not them. Have a 300w bash, a couple 500w bash with mods with a Q of 1.9 and boosts of 5db at 20-24hz and a keiga 52100 (1000w). The keiga is an awesome amp and is a beast weighs upwards of 40lbs.
 
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