Joined
·
48 Posts
Buy the s-convert at B&H Photo - it's cheap insurance you will get the most out of your pro amp and easy to use.
Posts by GSX-R_Rider
1 - 7 of 47 Posts
Joined
·
48 Posts
No - the LFE coax cable from your Onkyo will plug into the s-convert box and the on the other side of the s-convert box you will get a "balanced" signal in which you will plug a pair of XLR cables into and then run the xlr cables to your EP4000 - hence you will have converted your Onkyo's unbalanced coaxial cable signal into a balanced signal using the S-Convert box and your EuroPower amp will run more efficiently. The S-Convert also has a gain control on it so you can fine tune using the S-Convert as well. It was all foreign to me too (as my background was all home audio and not pro audio) but I can assure you when you see the s-convert box it is simple - just make sure to order a set of XLR cables that are long enough to run from your Samson box to your EP amp.
Joined
·
48 Posts
Why intro extra cables and cost and potential for noise?
Rca from onkyo to samson input rcas and then run an xlr from samson balanced xlrs to the ep4000 is all u need to do.
Rca from onkyo to samson input rcas and then run an xlr from samson balanced xlrs to the ep4000 is all u need to do.
Posted via Mobile Device
Joined
·
48 Posts
My rationale for recommending he purchase the S-Convert (or an Art Cleanbox for that matter) is that in my research looking at how to incorporate my ep2500s into my AV system I read time and time again others who had problems with low voltage signals from home receiver pre-outs of all brands. To me spending $45 is cheap insurance of avoiding this problem and maximizing the signal sent to the pro-amp.
I recall other individuals who said even though the pro amp would work being fed the unbalanced signal from the receiver co-axial pre-out that when a Cleanbox or S-Convert was added into the system it performed better and the gains did not have to be turned up so aggressively to achieve adequate volume levels.
My ep2500s are run off a Yamaha Rx-v665 and the LFE is fed thru an S-convert to a dedicated ep2500 and the L&R front pre-outs run into a Cleanbox and are then sent to an ep2500. Doing this also was a convenient way to convert the receiver's signal into an XLR cable without adapter cables and plugs. The gains on both ep2500s are probably at about 11pm.
Posted via Mobile Device
I recall other individuals who said even though the pro amp would work being fed the unbalanced signal from the receiver co-axial pre-out that when a Cleanbox or S-Convert was added into the system it performed better and the gains did not have to be turned up so aggressively to achieve adequate volume levels.
My ep2500s are run off a Yamaha Rx-v665 and the LFE is fed thru an S-convert to a dedicated ep2500 and the L&R front pre-outs run into a Cleanbox and are then sent to an ep2500. Doing this also was a convenient way to convert the receiver's signal into an XLR cable without adapter cables and plugs. The gains on both ep2500s are probably at about 11pm.
Posted via Mobile Device
Joined
·
48 Posts
Kevin
Not sure if these pics will help but just snapped them quickly to give you an idea - my EP2500s and S-Convert and Cleanbox are mounted behind the wall that my AV system is located in so the wiring and set up is a little messy because this is sitting on a shelf that is mounted on a wall leading into my basement and totally out of site.
As you can see there are two EP2500s and the blue box on the top is a Samson and the slightly larger box next to the Samson is a Art CleanBox. Both modules get the job done similarly but the Samson is probably a better choice for subs right out of the box and its $20 cheaper on top of that.
You can see on the blue box that the dual LFE pre-out coax cables from my Yamaha RX-V665 receiver are plugged into the "input" of the Samson and the XLR cables balanced output comes out of the same side of the box (as you can see the XLR cables in the pic). The XLR cables from the Samson run into the back of the EP2500 input and the EP2500 runs a pair of Dayton DVC385-88 15" sealed subs. The Cleanbox works the same way and feeds a Left and Right signal into the second ep2500 for my Klipsch L&R main speakers.
This amp rack is in a very awkward place to snap a good picture so hopefully this is of at least some help to you.
Not sure if these pics will help but just snapped them quickly to give you an idea - my EP2500s and S-Convert and Cleanbox are mounted behind the wall that my AV system is located in so the wiring and set up is a little messy because this is sitting on a shelf that is mounted on a wall leading into my basement and totally out of site.
As you can see there are two EP2500s and the blue box on the top is a Samson and the slightly larger box next to the Samson is a Art CleanBox. Both modules get the job done similarly but the Samson is probably a better choice for subs right out of the box and its $20 cheaper on top of that.
You can see on the blue box that the dual LFE pre-out coax cables from my Yamaha RX-V665 receiver are plugged into the "input" of the Samson and the XLR cables balanced output comes out of the same side of the box (as you can see the XLR cables in the pic). The XLR cables from the Samson run into the back of the EP2500 input and the EP2500 runs a pair of Dayton DVC385-88 15" sealed subs. The Cleanbox works the same way and feeds a Left and Right signal into the second ep2500 for my Klipsch L&R main speakers.
This amp rack is in a very awkward place to snap a good picture so hopefully this is of at least some help to you.
Attachments
Joined
·
48 Posts
No problem Kevin - I was confounded by the whole "balanced signal" vs "unbalanced" consumer signal. My knowledge of pro-audio gear was extremely limited. All I knew was I wanted to add in EuroPower amps into my system and stop relying on home receiver power and plate amps for my subs. Glad I could help you with this as I was at a total loss with it too - have fun with the EP4000 - you will never go back to lesser amps for your subs ever again (I know I won't).
Joined
·
48 Posts
OK...I have both boxes because initially I added in only one EP2500 for the front channels and was using my Dayton plate amps to power my subs. The Cleanbox just happened to be the choice I made to buy. However about a month later when I decided to buy another EP2500 to run my subs I read that the Cleanbox needed to be modified for sub duty as there was a very steep unwanted roll off in the low frequency range. For that reason it was suggested that the S-Convert was a better choice right out of the box for sub amps and was only $45 from B&H Photo (versus $65 for Cleanbox from Parts Express).
Both the Cleanbox and the S-Convert only have plugs for ONE set of coax inputs and ONE set of balanced XLR outputs. Since I am running two subs my dual LFE coaxs go to the S-Convert and the front L&R mains require plug into the Cleanbox to boost my front L&R coax signal before it is sent to the 2nd EP2500.
Your question about "cold" and "ground" I believe has to do with the 3 pins that are part of each XLR male end cable and TBH I am not qualified to give you a good answer on that. Trust me once you unpack the stuff it will make total sense - I found it was more difficult to get a handle on it from reading online versus getting my hands on the gear and plugging it all in.
Both the Cleanbox and the S-Convert only have plugs for ONE set of coax inputs and ONE set of balanced XLR outputs. Since I am running two subs my dual LFE coaxs go to the S-Convert and the front L&R mains require plug into the Cleanbox to boost my front L&R coax signal before it is sent to the 2nd EP2500.
Your question about "cold" and "ground" I believe has to do with the 3 pins that are part of each XLR male end cable and TBH I am not qualified to give you a good answer on that. Trust me once you unpack the stuff it will make total sense - I found it was more difficult to get a handle on it from reading online versus getting my hands on the gear and plugging it all in.
1 - 7 of 47 Posts
