CECAA850 Posted March 17, 2014 Share Posted March 17, 2014 Hooked up everything last night for a test run and found that without a level converter I could get nothing out of the EPX4000. Home Audio to ProAudio - Unbalanced to Balanced converter with +14dB boost turned all the way up got things working. With RCA inputs I did not expect to need this. I had it for my Pro-Audio Mackie sub and will need it or another converter upstairs when I move it. Also found that the Subs from FI that were supposed to be 4Ohm measure out to be 2.7 Ohms. I emailed them, but have not heard back yet. No switch on back like the EP-4000? I don't remember what it was called but it had a -4, +10 label or something like that. It's used just for this purpose. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted March 17, 2014 Share Posted March 17, 2014 No consumer/pro switch. Is the crossover switch in the right position? Quote Link to comment Share on other sites More sharing options...
WakeJunkie Posted March 17, 2014 Author Share Posted March 17, 2014 (edited) These are the only switches on the amp. Tried both limiter positions just to be sure. Edited August 4, 2014 by WakeJunkie Quote Link to comment Share on other sites More sharing options...
WakeJunkie Posted March 17, 2014 Author Share Posted March 17, 2014 From the EPX4000 manual Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted March 17, 2014 Share Posted March 17, 2014 - Input Sensitivity: 1 V - Distortion: <0.01% - Frequency Response: 20 Hz - 20 kHz, +0/-1 dB - Voltage Gain: 35 dB - Damping Factor: > 300 @ 8 Ohms - Input impedance: 10 kOhms unbalanced, 20 kOhms balanced - Signal-to-Noise: > 100 dBA - Controls: - Front: POWER switch, GAIN control (channel 1 and 2) - Rear: MODE switch, X-over Switch, BRIDGE MODE switch If it only takes one volt to drive it to max output, I wouldn't think you'd need a converter. Quote Link to comment Share on other sites More sharing options...
WakeJunkie Posted March 17, 2014 Author Share Posted March 17, 2014 - If it only takes one volt to drive it to max output, I wouldn't think you'd need a converter. Agreed. I will run some more test, but last night without the converter I got nothing at all. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted March 17, 2014 Share Posted March 17, 2014 Sooooooooo, how did it sound with the converter? Quote Link to comment Share on other sites More sharing options...
WakeJunkie Posted March 17, 2014 Author Share Posted March 17, 2014 Sooooooooo, how did it sound with the converter? The two rooms are not separated yet. You can still see the back of the subs from inside the room. That being said it was still pretty impressive. The column is not in to fill the back of the box and seal to rear holes, before I covered them it was quite underwhelming. Once the holes were covered it was impressive. To early to make any real judgments, but I couldn't wait any longer I had to hear it bump... Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted March 17, 2014 Share Posted March 17, 2014 The two rooms are not separated yet. You can still see the back of the subs from inside the room. It will be MUCH better once that's taken care of. You'll be amazed how much lower these go than your old sub. Quote Link to comment Share on other sites More sharing options...
Ceptorman Posted March 17, 2014 Share Posted March 17, 2014 I just read your whole thread, awesome job on everything you have done, it's looks spectacular. There's a lot of work, and a fair amount of money there. I hope to take on a HT project soon, I start by adding a basement to my house! I'm not sure what you do for a profession, but you could be a contractor. You should be proud….Bill 1 Quote Link to comment Share on other sites More sharing options...
Moderators Youthman Posted March 17, 2014 Moderators Share Posted March 17, 2014 Bill, glad to finally see a pic of your new Palladiums. Yummy bro. When I was building my riser for my HT, I got stuck and called wakejunkie. I was hoping for advice on how to continue with the project....but instead, he asked, "What are you doing next weekend?". 600 miles later, he and his family came and stayed a few days while we worked on my riser together. I had designed a simple rectangular box with carpet. After his suggestions, we ended up adding insulation, a custom power cable, romex from the power cable to the two front wall outlets for the front row seats to plug into, steps on each side and step lighting. Could wake be a contractor.....heck yeah...easily. He makes an incredible friend as well. 1 Quote Link to comment Share on other sites More sharing options...
Ceptorman Posted March 17, 2014 Share Posted March 17, 2014 Bill, glad to finally see a pic of your new Palladiums. Yummy bro. When I was building my riser for my HT, I got stuck and called wakejunkie. I was hoping for advice on how to continue with the project....but instead, he asked, "What are you doing next weekend?". 600 miles later, he and his family came and stayed a few days while we worked on my riser together. I had designed a simple rectangular box with carpet. After his suggestions, we ended up adding insulation, a custom power cable, romex from the power cable to the two front wall outlets for the front row seats to plug into, steps on each side and step lighting. Could wake be a contractor.....heck yeah...easily. He makes an incredible friend as well. Thanks, you don't think my speakers are too close together do you?!!! Wake sounds like a terrific person, not many people would do that. In our world, people like that are hard to find, my Dad was like that. I'll bet you paid him back with some speaker work huh? Quote Link to comment Share on other sites More sharing options...
WakeJunkie Posted March 17, 2014 Author Share Posted March 17, 2014 I just read your whole thread, awesome job on everything you have done, it's looks spectacular. There's a lot of work, and a fair amount of money there. I hope to take on a HT project soon, I start by adding a basement to my house! I'm not sure what you do for a profession, but you could be a contractor. You should be proud….Bill Thanks for the kind words. I am a Computer Engineer and have actually never been paid to build anything before. Youthman is my Best Friend. Driving to his place to working on his HT was a fun weekend for me. I wish I could do it more often. He has paid me back time and again. Quote Link to comment Share on other sites More sharing options...
Moderators Youthman Posted March 17, 2014 Moderators Share Posted March 17, 2014 Thanks, you don't think my speakers are too close together do you?!!! Nah....just toe them in a bit and you will be fine. He has paid me back time and again. And I feel likewise. When we visit, we get free lodging (with a kick butt dedicated HT) and we get to wakeboard, tube and kneeboard behind his boat. We don't keep tabs on paying each other back. We just enjoy hanging out with our families and even "work" doesn't feel much like "work" when you are having fun in the process. 1 Quote Link to comment Share on other sites More sharing options...
WakeJunkie Posted March 17, 2014 Author Share Posted March 17, 2014 I could use some help here. Apparently the EPX4000 requires the level converter. The quote from the product page: "XLR , 1/4'' TRS and RCA input connectors for compatibility with any source" is a bit misleading. I currently have the line level converter Model 555-8585 from MCM custom audio. http://www.mcmelectronics.com/product/555-8485?utm_expid=8634549-20.QlUUB9VpRc2V-fYTYAiBVg.0&utm_referrer=http%3A%2F%2Fwww.mcmelectronics.com%2F Specs list it for 20Hz-20KHz. Which was fine for the Mackie I purchased it for. When testing last night I did noticed it dropped off quickly below 20Hz and that surprised me until I looked up the specs on the converter (which I had not planed on using) Now I need to find a converter that will cover frequencies suitable for an IB sub and don't cost more than the amp. I did find a mod for the CleanBox that claims flat down to 10Hz, but not much to support that claim. http://www.subwoofer-builder.com/cleanbox/cleanbox.htm Like I mentioned, without the converter I got NO input indication on the EPX4000 at all. Even after bumping the sub-out level to +10 on the AVR. Any help appreciated. Any help would be greatly appreciated. Quote Link to comment Share on other sites More sharing options...
Moderators Youthman Posted March 17, 2014 Moderators Share Posted March 17, 2014 While you are waiting for your sprain to heal, you should post some nice pics of these beasts. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted March 17, 2014 Share Posted March 17, 2014 It might be cheaper to sell the EPX (or return it) and get an EP. In the mean time let me do some digging around. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted March 17, 2014 Share Posted March 17, 2014 Man, I'm coming up blank. All the line level adapters I've found show 20 to 20k Hz. Are you within the return time on your amp? Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted March 17, 2014 Share Posted March 17, 2014 While you are waiting for your sprain to heal, you should post some nice pics of these beasts. X2 Quote Link to comment Share on other sites More sharing options...
WakeJunkie Posted March 17, 2014 Author Share Posted March 17, 2014 I had a rough weekend after spraining my ankle. I didn't even take a picture of the driver before installing it.....I can't believe I did that. I am finding similar posting about people having to use line level boosters on the EP4000 as well as the EPX. This one is rated to 10Hz, but is only 9v battery or phantom powered. http://www.americanmusical.com/Item--i-SAM-SDP-LIST Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.