Until I have stack enough money, I purchase new Dayton sub.
But when I go High level amp or by speaker, there is a hum with my S300
if I go with a coax from the preamp, it is ok?
I don’t understand what I did wrong
anyone has experience that?
thanks for helping
If you describe the connection in detail, or show a photo, someone would be able to chime in.
Do you have your preamp and amp plugged into different circuits (where there could be a ground loop)?
some subwoofer high level inputs have trouble with floating bridge amplifiers like the S300 because the negative terminal of the amp is a negative voltage, not ground.
I would just use rca input to the subwoofer, since that is working well.
There’s no mention on the Parts Express website about what type of amp is used in any of those inexpensive subs though likely some cheap Chinese Class D amp which is another connection issue. Unless you are willing to experiment with varied grounding schemes just as Chris said use the preamp outputs.
Well, the room is an addition to the house, same breaker, I have 6entry in 3 wall plug, in the 3 area, and they all connected on the same breaker with a GFI.
I connect my amplifier in the wall in the PS “Ultimate” outlet with the phono stage, and the rest in a Powerbar. My preamp for now, is the Schiit Saga 2, but today, I will received the PS gain cell preamp! (will test again with that)
I connected the additional right out of the amp, to the right high level of the sub.
I connected the additional lest out of the amp, to the second sub on the left.
there is a pass thru in the sub, you enter the sub and go out, if you wish, so it could cut at the right frequency, instead of merging, I had a sub like that once, it was a Klipsch.
Dayton sub, for me are new and very affordable, in US$ probably around 300$, I choose that as a transitory sub!
And after that I connected direct from speaker instead the amp, same hum.
That a way to encourage me to have a PS PowerPlant!
“Sounds” like the coax is providing a dedicated ground link with the preamp that the high level, speaker terminals on the S300 are not. It has been years since I had to deal with grounding issue induced hum but I do remember it was a big pain. What if you just leave both connection modes intact?
Sorry, to personal, and someone, asked me to stop!
Chris posted with details. Bottom line, neither red nor black terminals on S300 are ground. I believe this is a design feature of most PS Audio amps. From several post by Chris on the forum, I have concluded that he doesn’t feel high level sub connection is a big deal.
AND, because both speaker terminals on the S300 are “hot” never ground either of them.
Jim Whitesell
Good Evening,
I have retry the Dayton sub with a different preamp, same buzzing, nut a hum, like voltage leak sound!
and when use and split the output [RCA] from the preamp to S300 and the Dayton sub, Result: complete loss of power the sub barely make a sound and are useless. Anyhow, those didn’t working.
I have return those! (a bit of pain in the … and exhausting complication) and still wait for my money back!
Lesson learn, no support for Dayton. It’s a no go with the S300, other device I don’t know. It is also a no go with my Schitt Gallahorn.
“when system was ok, and you had something and it goes wrong, it is probably the new device”: thanks Paul!
now back with the S300, try five different set of speaker and they all sing, no boomy bass.
Same speaker with Gallahorn, sometimes they sound boomy, but it cost 10 times less! so I forgive them!
Does it happen to you, that almost threw to the dumpster a complete HiFi when adding a new device, a soupe du jour device and finally, the problem is the new device! with new DAC, for me it happen often!
Farewell!
I will get back, when we have better choice and service in Quebec Market (Great Montreal areal of great Quebec city area). Everywhere, every one sell McIntosh, Focal, Naim, Prima Luna everyone sell the same thing, because of Distributor control the market!
Maybe I should travel south and purchase there, even with paying the custom, it became cheaper than local store…!
Sorry to be grumpy, but it is killing the passion in HiFi by controlling the market like distributor do!
Better no Sub, than a bad one! with my S300.
If someone has one that work ok with it, let me know and send a pic how to connect it!
Farewell