Impedance
Warning ... NOVICE Post
I am reading web postings on speaker impedance and trying to understand the issues that I will be facing soon. I am in the process of finishing the basement and have decided to purchase the LC265i In-Wall speakers for my front L/R. Thinking about the LC265i for the center and LC80i for the rear L/R. Since this is new construction I wanted to put in-wall speakers in while I had the chance rather then tearing up the walls later.
I would like to use my current Yamaha HTR-5280 AV Receiver to power them. Here are some specs on the receiver. There is a impedance selector switch that I can change according on the impedance of the speakers in the system. Thus it can handle the following:
Main - 4 ohms or higher
Center - 6 Ohms or higher
Rear - 6 Ohms or higher
Thus the receiver should be able to driver the front LC265i (4 Ohms), but will I damage the speaker or receiver by trying the drive the center and rear. If I us the LC265i for center at 4 Ohms the receiver said 6 Ohms or higher. Same with the rear. The LC80i are rated at 4 Ohms but the receiver said 6 Ohms or higher.
I would be happy to buy amplifier(s) early next summer once everything is set up (if I still have money). I am just curious if I will cause any damage or just not get the most out of the speakers based on the specs.
I am reading web postings on speaker impedance and trying to understand the issues that I will be facing soon. I am in the process of finishing the basement and have decided to purchase the LC265i In-Wall speakers for my front L/R. Thinking about the LC265i for the center and LC80i for the rear L/R. Since this is new construction I wanted to put in-wall speakers in while I had the chance rather then tearing up the walls later.
I would like to use my current Yamaha HTR-5280 AV Receiver to power them. Here are some specs on the receiver. There is a impedance selector switch that I can change according on the impedance of the speakers in the system. Thus it can handle the following:
Main - 4 ohms or higher
Center - 6 Ohms or higher
Rear - 6 Ohms or higher
Thus the receiver should be able to driver the front LC265i (4 Ohms), but will I damage the speaker or receiver by trying the drive the center and rear. If I us the LC265i for center at 4 Ohms the receiver said 6 Ohms or higher. Same with the rear. The LC80i are rated at 4 Ohms but the receiver said 6 Ohms or higher.
I would be happy to buy amplifier(s) early next summer once everything is set up (if I still have money). I am just curious if I will cause any damage or just not get the most out of the speakers based on the specs.
Post edited by cewolcott on
Comments
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As long as you have good ventilation around the receiver and are not playing at really high levels you should be fine. However I would recommend a power amp to get the most out of them. You could then just use the Yamaha as a Preamp/Processor.
Enjoy the new system, and welcome to the Club!
If you have more questions don't hesitate to ask.
HT
Mits WD-65737, DirecTV, Oppo DV-970HD, XBOX ONE, Yamaha RX-A1030, Parasound Halo A23, Rotel RB-985, Music Hall MMF-7, Parasound PPH-100, LSi-15, LSi-C, LSi-FX, LSi-7, PSW-1000, Monster HTS2600
2 CH
Parasound Halo P3, Parasound Halo A21, Sutherland Ph.D, VPI Classic 3 w/ 3D arm & Soundsmith Aida Cartridge, Arcam CD72T, B&W 802 S3, Monster HTS2500, -
Basically, give it a shot and if your yamaha shuts down at the levels that you want to reach, you'll know that you need a bigger amp. Mine was crapping out trying to drive my LSi's so I had to add a power amp (which greatly improved the sound, BTW)Gallo Ref 3.1 : Bryston 4b SST : Musical fidelity CD Pre : VPI HW-19
Gallo Ref AV, Frankengallo Ref 3, LC60i : Bryston 9b SST : Meridian 565
Jordan JX92s : MF X-T100 : Xray v8
Backburner:Krell KAV-300i -
This is probably a dum question, but here it goes. I have read about how the top end of the LSi speakers are cleaner than the RTi series, say a LSi15 to a RTi10. Can you mount a LCi tweater in a RTi, or the fact the LSi is a 4 ohm to a RTi 8 ohm get in the way?
Yamaha 2400 receiver
Denon 2900 DVD/ universal
Anthem 20 and 30
Monster 3500 power
RTi 10 fronts
CSi5 center
RTi6 surrounds and backs
HSU VTF2-MK2 -
Actually there are many things to get in the way. Speakers are a fine art. Everything about them is precisely matched to everything else. Crossover, drivers, and cabinets are all specifically designed to work with one another.
I think I'll stop there for now. One could go on for days about the details. :rolleyes:HT
Mits WD-65737, DirecTV, Oppo DV-970HD, XBOX ONE, Yamaha RX-A1030, Parasound Halo A23, Rotel RB-985, Music Hall MMF-7, Parasound PPH-100, LSi-15, LSi-C, LSi-FX, LSi-7, PSW-1000, Monster HTS2600
2 CH
Parasound Halo P3, Parasound Halo A21, Sutherland Ph.D, VPI Classic 3 w/ 3D arm & Soundsmith Aida Cartridge, Arcam CD72T, B&W 802 S3, Monster HTS2500, -
In other words don't mess with something you don't understand!
