Polk Audio RTi A7, recommended amp wpc

FernandoTorres

Hi all...

I already have both AV/R DENON X3000 (105wpc watts per channel with 2 channels) and also RTI A7s. I still cant understand why 200-300wpc amp are recommended for RTI A7. With my denon I get excellent sound, at 90db my furniture and wood floor vibrates (small living 4x4), I use to run it between 60db and 80db. Second day a neighbor asked me to drop down the volume. I've never try it further than 90db, it seems that speakers would blow if so.

Polk's customer care told me several times that my denon was fine for RTi A7.

I just have a pair of RTI A7. I will connect a 5.0 set with rti familly but I have to wait, no money for now. However for music I will always use 2 channels.

So... why 200-300wpc amp are recommended for RTI A7?? It does not seems to be a matter of power as 105wpc goes well. I believe that is a matter of distortion. Maybe it seems that further than 90db is too much for RTI A7s, but indeed it is too much for the amp. However since I use it between 60-80db its fine for me.

Thanks!!

gudnoyez

That Denon of yours does not have pre outs so you could not add an Amp anyways you would have to step up to the Denon x4000 to do so.

FernandoTorres

I've heard good comments about Parasound many times.

I can't go for a dedicated amp yet. Also as gudnoyez mention, my x3000 does not have pre outs (same version but for 220volts countries does have pre outs... I dont know why). My Denon x3000 is also new, about 6 months, unless Im pretty happy with it, it seems it was not the best choise. I cant change it so quick, unless I have another good oportunity as I did when I bought this.

I'm from Argentina (everything cost about 3 times US prices), once a year I use to go to Paraguay (Ciudad del Este), prices there are same as US. Maybe next year I will look forward an Onkyo receiver, I've heard there is one with about 150wpc-8ohms-2channels.

Nightfall

Onkyo is not exactly known for reliability lately.

FernandoTorres

Nightfall wrote: »

Onkyo is not exactly known for reliability lately.

I've heard good things about Onkyo (there is one with 150wpc and preouts for future upgrade)... anyway which receiver-brand 5.1 (or more) did you recommend?

quicksilvergts

I agree. From my own experiance, After owning my Parasound 1200II(first dedicated amplifier ever) for almost 2 weeks. I will almost never go back
To a "AVR only" setup.

My story lol
I started this journey late last year. From a polk cs10/psw10/pioneer 522 on craiglist. At that time I thought I was top of the world.
Then I decided to buy tsi100, still felt great. Then I decided to change everything, buy a M70's/CS2 then 1 psw505 then another psw505
THEN Fxi3, because I felt my tsi100 were not what I wanted for surrounds.

At this point i chilled for awhile and enjoyed my setup. But was ultimately unhappy. Figured my AVR was holding me back (it was WITHOUT question).
So I bought a pioneer 823(got a really good deal lol)

I again enjoyed for awhile,. But always wanted the pioneer 1222/1522, because price point and MUCH greater "watts" especially all channels driven and all the "preouts"
Well..... I bought one (actually 2, I am repairing the other one). I love it. I found some older polk rt16 (mint) I fell in love.
So decided "again" to change everything out. Bought a cs350 to match,
Now this felt good!!

Past month or so I kept hearing about "AMPS" on how great the are everything. So I go again.... I decided for a Parasound 1200II. Thinking well
My AVR has a solid 150 "WATTS" (@1% thd)2 channel driven, what could another 55 "watts" do.

Well sir, it DOES EVERYTHING and more!!!!!!! When people here on this forum and even in this very thread talk, give advice/suggestions
Be SURE to listen NOT hear. These folks have been there done that lol.

Moral of these story is, I thought I could get some great satisfying results in just getting a more powerfull AVR.
But it is the complete opposite, I would rather have a smaller reciever with more features AND preouts than a
larger one with acclaimed higher "wattage" with less features and still use a separate amplifier.
Don't get me wrong the sc05/07/09 are super kickass. And other brands as well but "best bang for buck" reciever with preouts
and a amplifier will net you some blissful results.

Sorry for the long story- this is just my point of view
And I WILL get my Rtia7/9-Csia6 setup one of these days, SVS comes first though lol.
But I am truly happy with my setup now and for a longtime or until I find a super deal.

Cheers!!

P.S. get a amp and AVR w/preouts:)
And call it a day

mikey1987

The impedance curve of the RTi10 (and I would assume the A7 as well) dips into the 4ohm range in two spots of the frequency range. I was running my pair off an HK3485 for awhile and they sounded OK, but I don't think that receiver could supply enough power in the 4ohm range to really make them sing.

Most real amps can supply power safely at 4ohm with 1ohm or 2ohm dips. Most receivers can only supply power safely at 8ohm, with some 4om dips.

Not sure where I found this from but you might find it helpful. It's for the RTi10 but probably equally applicable to the A7 as well.

Sherardp

D-Sonic Magnum 1000S (525w x 2) is what I run on my RTi12s. TThese speakers sound awesome with IceAmps. I tend to lean toward Pioneers. I have the SC-07 powering the game room, and the SC-77 powering the HT. You can't go wrong.