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Will 2 watts monoblock 45 tube amp work for 90db speakers ?

Hi my fellow audio friends ! I got a question about low power tube amp , I recently interested in a pairs of 45 tubes low power amp , they are around 2 watts and I know they work best on higher efficiency speakers like horn , I currently have a primaluna preamp feed s ss amp to my Nola boxer s2 90 dB at 8 ohm and a pairs of sub , I wonder at normal listening level will a pairs of 45 tube amp will have enough juices to drives them ? My listening room is around 15 x 17 , any input ? 
atl4love
atl4love OP
91 posts
 
Thank guys ! I may have to go for another pairs with higher watts than 2watts , maybe 10 watts class a will enough for my listening level , normal I don’t listen more than 9 o’clock on my 100 watts ss power amp. 
rocray's avatar
rocray
1,447 posts
 
I occasionally run my Boxer 2's with a 10 watt tube amp. It works fine at lower to medium listening levels. You will not have to worry about the neighbors calling the police. 
    Hope this helps,
       Ray
sleepwalker65's avatar
sleepwalker65
832 posts
 
Most you can expect is to use them for headphone amplifiers. Even then they’re a little wimpy. 
roberjerman
4,319 posts
 
I disagree! A SET 45 amp is good for 1.75 watts. Enough for any headphone. I have one made by Will Vincent. I also have a pair of Heresy Mk I's  that work well with it. So high-sensitivity speakers are the best choice.
atl4love OP
91 posts
 
@rocray do you run subs along with them ?  
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