Sonos bridge power supply

Honestly, you’d be better off retiring the BRIDGE, and connecting your Sonos directly to your WiFi.

In general (and I’ve given up the BRIDGE years and years ago), most devices show the orientation on the label on the back. 

Pitching tne Bridge would be my choice too.

Adjustable power supplies are risky, one unlucky bump and you fried something. (Actually a good thing with tne Bridge) 

If you really must keep the Bridge direct replacement power supplies have been found on Amazon and other sites.

Going wifi is the Sonos recommended option. With older Sonos wiring one to Ethernet is a possibility. Wiring more than one can bring issues. With newer Sonos wiring to Ethernet gets complicated and expensive.

At a very minimum pitch the Bridge and get (a slightly less, but still oboslete) Boost on the used market.

I have an older 1st generation system that needs one unit with cable network. This system is now taking on a second life at a different location in the house, too far from cable access. I belive i need a bridge ( I used to have a connect on wired internet) I have no other “no speaker” equipment that can connect to wifi only 

The ‘older’ S1 systems don’t need the BRIDGE, or its since retired replacement, the BOOST. All Sonos systems are capable of hanging off of the WiFi, and have, for years. 
 

Any Sonos device, including the CONNECT, can act as a replacement BRIDGE, if you prefer. 

From the support files

https://support.sonos.com/en-us/article/remove-a-bridge-from-your-sonos-s1-system

https://support.sonos.com/en-us/article/supported-wifi-modes-and-security-standards-for-sonos-products

Back in 2005 when SONOS was introduced, WiFi was not as developed as it is now and in order to provide coverage in a wide variety of homes, a wireless mesh was needed, but consumer level WiFi mesh didn’t exist, so SONOS developed its own — SonosNet wireless mesh. Actually, SONOS didn’t support WiFi at that time. No configuration was required and it just worked. However, at least one SONOS unit needed to be wired to the network. Since it was often impractical to wire a player to the network, BRIDGE and then BOOST were introduced in order to reduce the cost of that required link.

Competition pummeled SONOS accusing it of not being “wireless” because at least one wired unit was required. For a while SONOS simply included a BRIDGE with a player purchase, but SONOS was still pummeled. All this time the competitors were struggling to provide a robust “wireless” system of more than a very few players, while SONOS could support 32 players. SONOS finally relented and enabled WiFi. Given the technology already under the hood, all SONOS players could instantly support WiFi or SonosNet. It was basically a cheap trick for SONOS and the competitors claim of “not wireless” was crushed. Meanwhile, competitors quietly licensed SONOS patents in order to improve their own WiFi performance.

Although there can be some lingering configuration issues, consumer WiFi mesh systems are now capable of supporting SONOS without a wired connection. BRIDGE and BOOST technology is now obsolete. In fact the currently manufactured SONOS units are WiFi only and do not support SonosNet.

Not entirely true, as whilst they do not use SonosNet, they can still be wired, either directly (Arc Ultra) or with the combo adapter (Eras)