Newbie question about impedance on amplifier > speaker

[Psyskeletor]

Hi.

I beg you pardon if i put the topic on the wrong place.

I am pretty new to the audiophile world and i am building my rig.
So far:
Speakers: Polk Audio RTA 8T
DAC: Topping E50
Streamer: WiiM streamer
Amplificator: Topping LA90D

My question is:
My speakers are rated 6ohm, 89 db sentisivity (https://polksda.com/rta8t.shtml) and i want to use another LA90D as monoblock:
- LA90D works on monoblock only in 8ohm impedance: will it destroy my speakers? (rated for 250W)
- I saw on @Amir review "bridged mode" whats is this? connection the output of one LA90D to the input of the second one and then to the speakers?
- Anyone as an opinion about the polkies? for me dound great and if i change the LA90D for my old Hafler DH-200, it sound way brighter, defined and cleaner but i dont know i am really listening to ****** speakers.

Thanks!

 

[staticV3]

LA90D works on monoblock only in 8ohm impedance

Officially, the LA90D can be used in Mono with ≥4Ω loads:


Indeed Amir tested 4Ω Mono and the LA90D did just fine:

will it destroy my speakers? (rated for 250W)

No.

I saw on @Amir review "bridged mode" whats is this? connection the output of one LA90D to the input of the second one and then to the speakers?

Bridged mode = Mono mode.

Please don't plug one LA90D into another LA90D, that's a recipe for disaster.

 

[Psyskeletor]

Thank you very much, i tought it was suited for > 8 ohm loads but reading my la90d instructions, it clearly states > 4 ohm, so my mistake. It seems, 6ohm is on the very safe side.

Thanks again!

 

[JustJones]

Thread about mono/ bridged.

Monoblock / Bridged amplifier explained

I'm fairly new to the deep dive into the audio world, though I already have built a fairly nice system. My next move will probably be an upgrade in amplifier(s). When reading posts to various audio sites, I have read some confusing posts regarding monoblock amps and/or bridged amplifiers. I...

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