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Contributor I
January 19, 2013

Issue with Connect:AMP and Volume

  • January 19, 2013
  • 40 replies
  • 14219 views
I'm a few months into my Sonos setup, and absolutely love it. Yes, my first (two!) cars didn't cost this much, but I consider it one of the best investments I've ever made. I have 5 zones with a mix of Play:5 and Play:3 speakers, and also using my own speakers -- which is where the trouble is.

In my living room, I have a Connect:Amp hooked up to a pair of Polk RTiA1 speakers (http://www.polkaudio.com/products/rtia1). The sound is... disappointing. I should clarify: The sound is spectacular, certainly more sophisticated than from my Play:3 or Play:5 speakers, which already sound great. But it doesn't seem as "powerful" as it should be, for lack of a better word.

For one thing, with all zones on the same volume setting, my living room speakers are noticeably quieter than the others. I have to turn up the volume in that room by perhaps 20% to equal the volume being played elsewhere. Also, with the volume set somewhere around 5% maybe, there's not really any music coming out of the speakers at all, while my Play:3s and Play:5s are still audible.

And second, it just feels like the overall power isn't that impressive. It's uncomfortable to stand in front of my Play:5 with the volume even close to maxed out, but not so with my Connect:Amp/Polk setup. Turning the volume all the way up is indeed pretty loud, but not the blast I was expecting. Not that I'm aiming for a setup that makes my ears bleed... Just making the point.

I hooked some other speakers up to the Connect:Amp and had the same issue. I don't think the Polks are the problem, and like I said, they do sound amazing for what they put out. (They are also gorgeous!)

What I'm struggling with is whether to keep this setup. Maybe my expectations were too high, maybe I've got something screwed up on the technical side, I don't know. This is by far my most expensive Sonos room, though... About $825 including the Amp ($500) and speakers ($325). I'm wondering if a $600 pair of Play 3's would sound the same or better.

Anyway, eager for any advice anyone has to offer.
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40 replies

ratty
January 19, 2013
How big is the room, and where are the Polks located with respect to the walls?

The Connect:Amp delivers 55W/ch into 8 ohms and those Polks, whilst of average efficiency, can take a more powerful amp. They are however 'bookshelf' speakers with modest low frequency extension so they're unlikely to shake the room.

If yours is a largish room you may be better served with a Connect plus a separate amp and speakers.
jmaAuthor
Contributor I
January 19, 2013
It is a largish room. I have the speakers on either side of my fireplace (which is in the middle of the room, not at one end.)

As a test, I brought two of my Play:5 speakers from other rooms and paired them in stereo mode, and... Wow. The sound is really exactly what I'm looking for. Substantially more bass than the Polks were delivering. (Which again makes me wonder if I've got something screwed up with my connect:amp or the wiring?)

I may return the amp/polks and buy two more play:5s. That's still a pricey option ($800), and they really don't look as nice, but the sound is great. And I guess I can always use them in a different part of the house some day.
buzz
Grand Maestro
January 19, 2013
jma,

In your brain, try to disconnect "volume control setting" from any judgements about sound quality. If the room plays loud enough, ignore the volume control setting. The volume control settings are about sensitivity, not quality. I'm not throwing SONOS into this bin, but as a general rule I find that the lower quality stuff gets louder at the lower end of the volume control than higher quality stuff. One must turn the volume control farther on high quality stuff for equal output. This loud at low settings is very important out in the department stores. Sometimes I'll lurk in a high traffic store and observe. Customers will remark how "powerful" a unit is if it gets impossibly loud when one "just cracks" the volume control -- this is the one for them to buy.
jmaAuthor
Contributor I
January 19, 2013
I hear you, and I guess starting out by saying it's not "loud enough" didn't really capture what I was trying to capture. It just feels like I'm not getting a very "full" sound out of the connect:amp/polk pairing. I'm open to the idea of trying other speakers, but these seemed pretty good.

And then there is still the issue of the volume disparity -- my Play:3s and Play:5s really are at equal volumes when I've got everything playing at once, while the speakers hooked up to the connect:amp are definitely quieter.
ratty
January 19, 2013
This may be a daft question, but are you sure the Polks are wired in phase?
buzz
Grand Maestro
January 20, 2013
... the speakers hooked up to the connect:amp are definitely quieter.

Are you saying that you have run out of volume control and the volume is still too low?
jmaAuthor
Contributor I
January 20, 2013
Are you saying that you have run out of volume control and the volume is still too low?

No, I'm saying that I have to add about 20% to the volume level of the zone with the Connect:Amp and Speakers to equal the same volume level as the Play:3 or Play:5 speakers. (And this isn't a room size issue or anything like that...)

Obviously it's something that can be managed, but is a little annoying. And the volume control resets anytime you do anything to change room groupings, so you have to sort of recalibrate.
buzz
Grand Maestro
January 20, 2013
jma,

Probably, you should not attempt to use a CONNECT:AMP in your system. Use PLAY:3's and PLAY:5's because you will not be able to match the level controls of anything else to your satisfaction. You could possibly use a CONNECT and a regular amplifier, but I think that you will run into volume control issues there too. You'll need to operate the follow-on amplifier at a high volume that will be outside of your comfort zone. This could be fixed with a product such as this.

Note that this is not an equipment flaw issue, it is simply a mismatch with your expectations.
soundhd
Contributor III
January 20, 2013
Just for "giggles" try using your speakers with a different amplifier (using the RCA output jacks on the Connect;Amp) and see if there is a difference in how the speakers sound. If there is a difference must be in the amp in the Connect or maybe just the power out of the Connect Amp is not enough to really run the speakers correctly. If no difference then try moving the speakers around and see if that makes a difference.
January 20, 2013
Just for "giggles" try using your speakers with a different amplifier (using the RCA output jacks on the Connect;Amp) and see if there is a difference in how the speakers sound. If there is a difference must be in the amp in the Connect or maybe just the power out of the Connect Amp is not enough to really run the speakers correctly. If no difference then try moving the speakers around and see if that makes a difference.

The Connect:amp does not have RCA audio out.