Help with amp selection polk LSIM speakers

[lovinthehd]

I did try the cheater plug the ground loop was still there.

Doesn't sound like a ground loop if lifting the ground didn't change things. More a hiss issue perhaps?

 

[davehall83]

what clarity? Only time sound quality could be an issue if AVR's amps would fair to provide sufficient power to speakers and would clip. This is not subtitle - you'd hear very clearly and I HIGHLY recommend to turn down the volume RIGHT AWAY.
Now, LSi/m not the easiest speaker to power, but you don't own low-end AVR either.
If I were you, I'd think that the pair of PB2000's probably doesn't give justice to bass in your very large 5-6k Cu Ft space. I'd rather spend the money upgrading them to pair of ported 15" subs, like HSU vtf-15 mk2

Your right im going to upgrade them this year probably and sell these. Yeah i dont leave the volume up past the 75db level on the amp , maybe 80 sometimes but thats when im testing to see how clear it is and it does sound clear i just wanted to get a nice external amp thats all. I know the numbers dont add up to what im doing but i just want to push them some more power

 

[davehall83]

Doesn't sound like a ground loop if lifting the ground didn't change things. More a hiss issue perhaps?

No it was a hum like you would hear on a old telephone line. It went away when the RCA's got unplugged. I talked to crown tech support and he said i need ground loop isolator

 

[lovinthehd]

No it was a hum like you would hear on a old telephone line. It went away when the RCA's got unplugged. I talked to crown tech support and he said i need ground loop isolator

Not my experience in lifting a ground. Nicer to have a better electrical solution, tho. You sure your rcas were good?

 

[davehall83]

Not my experience in lifting a ground. Nicer to have a better electrical solution, tho. You sure your rcas were good?

Yea they were brand new i bought : Monoprice 102869 3' Premium 2 RCA Plug to 2 RCA Plug 22AWG Cable - Black

I tried two different sets same results. I have dedicated 20 amp circuits to my APC J series UPS. I know that the cable boxes can cause this two and they are all in this metal sanus AV rack

 

[lovinthehd]

Yea they were brand new i bought : Monoprice 102869 3' Premium 2 RCA Plug to 2 RCA Plug 22AWG Cable - Black

I tried two different sets same results. I have dedicated 20 amp circuits to my APC J series UPS. I know that the cable boxes can cause this two and they are all in this metal sanus AV rack

Might try outside of your UPS, no need for the amps to be in that loop that I can think of.

 

[davehall83]

Might try outside of your UPS, no need for the amps to be in that loop that I can think of.

Well i gotta decide on a amp first i returned these

 

[TechHDS]

I'm probably a bit brash on this , but I personally don't compare Emotiva to the likes of Mark Levinson, Lexicon, Cary Audio, Theta Digital, ATI, or anything made by ATI.

Well, okay, maybe very brash.

Maybe a close 2nd? on the EMO. . Well said again! . ATi, Mark Levinson, in the same 'Hood' as Krell, and some Pass Labs. . I to just wouldn't compare EMO amps to just any Uptown Brown. .

 

[AcuDefTechGuy]

Maybe a close 2nd? on the EMO. . Well said again! . ATi, Mark Levinson, in the same 'Hood' as Krell, and some Pass Labs. . I to just wouldn't compare EMO amps to just any Uptown Brown. .

I think EMO is changing their “status” with the upcoming $5K AVR and Pre-Pro.

So I realize I am being a bit biased and harsh by saying I don’t consider them along with the other big boys who have been around for longer and are bigger.

It’s just that I still hear issues about their pre-pro - like taking over a minute to power up, which is risible. I mean even a $200 AVR can power up fully ready to play in 5 seconds!

And then there’s that bright blue cheese every time you look at them.

Cut the cheese and get with the power-up-time program already.

And change the name from EMO to something more high-end, which I could say the same for Monoprice.

Anyway it’s just mainly personal bias stuff.

At the end of the day, after it takes an eternity to power up, their amps and pre-pros do sound as good as any in Direct Mode (I say “Direct Mode” because I think Dynamic EQ is the best ).

 

[TechHDS]

I think EMO is changing their “status” with the upcoming $5K AVR and Pre-Pro.

So I realize I am being a bit biased and harsh by saying I don’t consider them along with the other big boys who have been around for longer and are bigger.

It’s just that I still hear issues about their pre-pro - like taking over a minute to power up, which is risible. I mean even a $200 AVR can power up fully ready to play in 5 seconds!

And then there’s that bright blue cheese every time you look at them.

Cut the cheese and get with the power-up-time program already.

And change the name from EMO to something more high-end, which I could say the same for Monoprice.

Anyway it’s just mainly personal bias stuff.

At the end of the day, after it takes an eternity to power up, their amps and pre-pros do sound as good as any in Direct Mode (I say “Direct Mode” because I think Dynamic EQ is the best ).

So you think Dynamic EQ is the best huh?. All AVR units, have that in some format or another. It's ok, with some sources be it a CD, movie, Blu-ray, or My personal favorite Vinyl . Dynamic EQ helps Vinyl out a lot. sometimes. Anyways, as for Emotiva, not in the beginning of their start. When they where getting into , processors, pre pro unit's I do remember "Dan" the owner of Emotiva found out he had a 'Mole' so to speak that was sabotaging, espionage,, had a Gremlin ,creeping around. Dude was fit to be tied!. As for the blue 'Kool-Aid', zingy, some mice like a slice of cheese I guess.. I have had Amps back in the day that had bigger gonads. Audio/Video business isn't as cut and dry as many would like to believe. Talk about someone's gear, or company you could get a knife in your back so to speak. . Cutthroat I tell you..

PS, ADTG, checkout my New Avatar, see them little Dolls with the pins in them?. Just made a few of them myself.. I'm sure You know who's first on my list to get 'Prick'-ed, first? You would be right if You guessed 'Luv'ey.. Now all I gotta do is run down to n'awlins and find that VOODOO Priest to work his black Magic, sprinkle some dust from a died man's ashes, roll some chicken bones and pour some of t Pirate John Lafitte whiskey over the died mans ashes. Why you guys think I'm selling off my XPA-5. and meeting the buyer up in the Big Easy. VOODOO isn't free! Sometimes they want a year or two off the backend of your life span., This time it's only going to cost me 4 bills..

 

[everettT]

Your right it is, i got a ART PRO T8 ground loop isolator i just bought in case this is the issue again for whatever amp i end up with

Just curious, have you checked the wiring in the wall outlet to confirm its wired correct and the ground is connected?

 

[davehall83]

Just curious, have you checked the wiring in the wall outlet to confirm its wired correct and the ground is connected?

Yes i just wired these outlets myself

 

[davehall83]

I think im going with the new parasound A31 i think thats my decision. I cant beat their unique amps

 

[Verdinut]

This Parasound is expensive. If you like the looks, it might be OK but it heats and you will probably need fans to cool it.
Personally, I would get a Monolith made by ATI that sounds just as good as the Parasound for a lot less. You can get the 3 channel one for less than $900 and the 7 channels for $2000 or less.

 

[davehall83]

Ok im listening, the monolith tho is only 200 w/per channel and i want at least 250 to 300

 

[Verdinut]

Ok im listening, the monolith tho is only 200 w/per channel and i want at least 250 to 300

The difference in power between 300 watts and 200 watts is less than 2db. For the 250w, you only gain roughly 1dB. You won't get much of an advantage with the more powerful amps.

 

[davehall83]

The difference in power between 300 watts and 200 watts is less than 2db. You won't get much of an advantage with the more powerful amps.

Yeah i get that as well. I just want to send close to full power as possible to the speakers based on what they need to drive a clear signal.

 

[Verdinut]

Yeah i get that as well. I just want to send close to full power as possible to the speakers based on what they need to drive a clear signal.

Well, you can do what you want. It's your money. But did you know that a 1dB difference is almost barely noticeable?

 

[davehall83]

Well, you can do what you want. It's your money.

So i am going from 140 WPC on the marantz to 250W with parasound or if i use that monolith its 200WPC getting the speakers more power is the biggest deal fo rme for clarity etc. Will the parasound be more clear and accurate?

Also one other thing i wanted to ask is what do you think about the D-Sonic amps are they any good?

 

[Verdinut]

So i am going from 140 WPC on the marantz to 250W with parasound or if i use that monolith its 200WPC getting the speakers more power is the biggest deal fo rme for clarity etc. Will the parasound be more clear and accurate?

Also one other thing i wanted to ask is what do you think about the D-Sonic amps are they any good?

Not at all. You won't be able to tell the difference between the two, should you attempt to do the comparison. I am telling you from experience.
Save your money and improve your system with room acoustics and perhaps more or better subwoofers for an overall better performance.