enough amp? (1 Viewer)

[Brian Schucher]

Ello folks.. Heres my dilemma. Im trying to work my way towards separates based system. Currently using a Marantz SR7000 and just picked up a Newcastle 9080 amp for really cheap. Its rated at 120per i think.. Im not really going to be using the amp for a while since my house is being built now and im doing a garage conversion for the HT. The room will be about 16x20 when done.. Im using Miarge speakers..OM6. OMC2, OMR2.. anyone think i will be underpowered for this room with these speaks?? Also plan on the 950 when i move this summer..

 

[Brian Schucher]

Nobody? I know there are people here with the knowledge to give me an opinion

 

[ColinM]

Roughly -

Take the sensitivity of your speakers (86db)

At one watt (1)

Add 3 db every time you double the watts

2 89

4 92

8 95

16 98

32 101

64 104

128 107

Then cut 3 (?) db off for every doubling of the distance. The sens. is figured at 1m.

2m = 104

4m = 101

If this was with my speakers in my room, I'd be out of juice at 98db or so.

The distance cut may be 6db per doubling, I forget.

- CM

This may be completely off base due to MANY factors.....

 

[Lee-c]

I think you lose 6db for every doubling of the distance past 1 yard. So, if you are 2 yards away

from the speakers when you listen, you've lost your first 6db of volume. If you are 4 yards way,

then you lose another 6 db. If you are 8 yards away, another 6db. Most people are going to be

sitting between 2 and 4 yards away from the speakers.

The goal being to have enough power to get your speakers to reach Dolby Labs reference level

for volume at the viewing position for movies.

 

[ColinM]

Brian?

Answered?