Unless you have purchased your Arc within 30 days, it is not possible to exchange it. It is possible to choose to upgrade your Arc to Arc Ultra, where you then get a 15% discount on Arc Ultra (You do not need to send your Arc back)

I'm not asking or talking about exchanging it it's been deemed defective in my conversations with Sonos support I'm not exchanging it it's covered under warranty it has to be replaced or refunded and since the arc generation 1 is no longer in production Sonos should upgrade to the Ultra or they should refund me my entire purchase price I bought it through Best buy but the extra year of warranty is from Sonos because of their wonderful wonderful success with the app this past summer

Since you’ve had a year’s use of it, they may seem it appropriate to replace it with a refurbished unit. 

I have no idea whether Sonos is still producing new Arc’s, but the Arc is definitely still for sale new.  I don’t see how you can expect a free upgrade to the Arc Ultra.  Either way, this is the community forum, not the correct place to make warranty claims. I would contact Sonos support directly to get that process started.

Did you even read my post? I've ALREADY MADE THE WARRANTY CLAIM! When I paid over 900.00 for a new Sonos Arc, I did so in good faith that it would live up to and maybe even surpass quality expectations and performance. It has not done so. The Sonos agent Informed me that it's been a known defect. I didn't pair the Arc with the pair of Era 300 speakers (another 900.00 plus investment) to have it fail miserably in my home theater. A refurbished discontinued soundbar is another slap in the face. Massive failure to perform in warranty Integrity and affirming that there's no character to be found. I'm willing to invest another 100 00 to have a functional soundbar in the Arc Ultra. Since Sonos knows that the Arc HDMI cuts out and renders the soundbar impotent transiently intermittent for longer and longer periods of time, throwing a refurbished piece of plastic at me is dishonest and shameful behavior for their business practices. I would expect this from Pioneer or JBL excrement, not Sonos and not after the epic failure this past summer. I expect and require more as does the BBB and consumer protection agencies. 

I have not taken anything from Sonos that I've not paid for and deserve from the business transaction. If Patrick wants me to be a loyal returning customer and express publicly my pleasure with the company and Sonos' resolution to  resolve the broken trust, making the customer service satisfactory and superior to other audiophile competitors, this really is a no brainer for Sonos. Otherwise his public address apology for breaking the app is lip service only.

Moderator Note: Modified in accordance with the Community Code of Conduct

The claim you list below is very interesting. I have three (3) Arc’s and have never experienced what you reference; at least not as a universal defect. I would think that at least one on my Arc’s would have shown a similar performance flaw . I would venture to say that your Arc may be one of a certain production batch but not a flaw that is common to all Arc’s. 

Warranty claims and/or good faith equipment replacements by the manufacturer are typically made on a “like for like” basis. Upgrades to a newer product (especially when the current product is still sold as new) are basically unheard of.

Local retailers may sometimes allow an upgrade to a new model by paying the price difference. However, retailers typically have an agreement with the manufacturer that defective products can be returned/credited to their inventory with future orders from the manufacturer. Therefore, it’s a win/win transaction for the retailer when they allow an upgrade for a price difference. Retailer retains a loyal customer and gets a backend rebate (so to speak) from the manufacturer.  

However, as has been pointed out this community is not the proper place to voice your complaint/dissatisfaction pursuant to a warranty/replacement claim.

“Since Sonos knows that the Arc HDMI cuts out and renders the soundbar impotent transiently intermittent for longer and longer periods of time,...”

I don’t know why you’re venting your frustration here. As has already been said, this is a user community. 
 

Take it up direct with Sonos. 

SMH

Has Sonos issued a RMA for your ARC?

Yes.

While retailers may use insurance companies to offer or include extended warranties, sometimes with a new for old basis, that is different to manufacturer warranties.

Manufacturer warranties will generally repair or replace with an appropriate same version of the product. Manufactures generally have spares or returns which they fully refurbish to use for warranty replacements which are used and available even after a product is no longer available for sale.

Whether Sonos is still selling or producing the Arc is irrelevant if they repair/replace your Arc under the manufacturer warranty.

Do you expect Sony to send you a PS5 if your PS4 breaks and isn’t for sale?

Apple to send the latest M4 Mac Mini as a warranty fulfilment if someone’s M2 Mac Mini breaks, because Apple no longer sell the M2 version?

Only the Sonos Staff here could help and even then the usual response is "you have to call" which is not what you want to hear.

Sigh SMH.

Moderator Note: Modified in accordance with the Community Code of Conduct.