reciever for SpeakerCraft speakers (1 Viewer)

[iisight]

Hi guys,

This is my first home theatre setup. I just moved into a house that is already equipped with the following ceiling speakers (there are 5 identical speakers present in the ceiling):

SPEAKERCRAFT "CRS 625CRS-1" 2-Way in-wall (or ceiling) speakersTweeter: Pivoting 1" liquid cooled silk dome with Neodymium magnetWoofer: 6.5" Glass composite cone with rubber surroundEfficiency: 92dB 1W/1mPower: 5 - 120 watts(undistorted)Impedance.: 8 ohmsFrequency Response: 40Hz - 20kHz+/- 2dBDiameter x Depth: 9.8125"diameter x 4" highCut-out Diameter: 8.25"

From the research I have done, I was hoping to purchase a denon 5.1 reciever. I understand that my reciver needs to have more watts than my speakers (to avoid underpowering them). I am confused as to what "5-120" watts means. Does this mean I need to find a reciever with >120 watts at 8 ohms? Or does it mean that the speaker will take in less watts (lets say 75 watts) and not clip.

Thanks!

 

[schan1269]

Speaker wattage and receiver wattage are irrelevant.Buy your AVR based on the features you want/need.Those speakers are 92db efficient (which is the only relevant spec there is, besides ohm). Those will be producing 85db(the volume you listen to a standard TV show) on a blistering 1/4 of a watt.100Db is "long term hearing damage" and those speakers produce that on less than 10 watts. They'll produce 105db(which is reference volume for 20db headroom) on less than 15 watts.

 

[iisight]

That is very helpful, thanks!

 

[schan1269]

By the way, you'll have to adjust the "wattage requirement" to room size/type.Small room with live acoustics will require less power than a large room with dead acoustics.Also, the db rating is 1 meter. 2 meters, same volume is double the power. 3 meters is quadruple the power.But...adding a second speaker recovers your initial "loss of volume" over 2 meters. The third through fifth add in a respective 1.5, 1 and .5. Those numbers aren't completely accurate on 3-5, but it has probably been 20 years since I've checked.

 

[iisight]

I was really concerned about possible clipping/speaker damage, but it seems like that is a nonissue. Thanks again.

 

[schan1269]

Unless this room is huge, like 30x30, and you are trying to recreate Studio 54...