Help Me Save A Few Bucks On New Amp Purchase


Hello,

I have been considering a new amp purchase lately but I can't seem to get past the idea of needing allot of WATTS despite having a very small listening space (12x9 now but maybe 12x15 in the future).

Currently I own a Pass Labs X250 and a pair of B&W 803 Diamond series speakers that tend to dip into the 2ohm region on occasion. Using an App on my iphone, the loudest listening session that I normally expose myself to is no more than 100db.

My speakers are rated at 90db efficiency and don't even blink during my loudest listening sessions to date, nor does the amp.

So here is my question. Given the above information how many Watts do I really need to reproduce the same SPL in my room that I currently enjoy? Part of me would like to believe that I have never used more then 30 watts RMS but I can't be sure.

My goal is to increase the SQ via the purchase of a higher end amplifier but at the same time save myself a few bucks by picking an amp that is a better match for my normal listening habits.

In the past I have always stuck to the idea that more is always better but in this game more tends to cost the same or more than a used car. In times like these sometimes a guy needs a swift kick of reality in order to save a few bucks.

Please share your ideas and thanks for any help you can provide.
eniac26
I guess I probably should have better explained what I meant by saving a few bucks and what type of amplification I am interested in.

First, I am most interested this time around in a full Class A amp verses the A/B amp that I have now.

Second, When I mean save a few bucks I am speaking in the context of lower wattage Class A amps verses higher wattage Class A or Class/AB styles. As an example I was initially leaning towards either a Pass Labs x 350.5 or bigger since my mindset at the time was bigger is better. An amp of that size and caliber can easily run $6-10K on the used market

After thinking more about it I began to realize that I am not even using the amount of power I already have on tap so why am I looking at an X 350.5 or bigger amp.

Instead maybe what I should be looking at is a lower wattage all Class A unit. Something like a used XA30.5 or XA60.5 for example which show up on the Gon fairly often for less money then the big dog amps.

My only reservation is if these will be enough to reproduce the same perceived level of effortless power and SPL that the x250 does now. It is my understanding that an all Class A unit does tend to sound very powerful even though the max output in terms of watts tend to be less.

Hopefully this makes more sense and thanks for your responses
Monarchy may still be having a 40% off sale on it's base amp. New and 20 watts of class A sound and made in the good old USA. Check their website. Good hunting.
If your speakers are truly 90db efficient, check with Pass labs and find out how many 'first watts' are running in class A in your current amp. You may be not exceeding that amount to drive your amp into AB operation. I have the PS audio GCA 250 and it is neither solid state or tube sounding, something quite different, but excellent. You would want to try one of these type amp before spending on them. best wishes
1 watt = 90db
2 watts= 93db
4 watts= 96db
16 watts= 99db
32 watts= 102db
Every 10db will double your perceived volume.
Keep in mind that dynamic headroom is what needs the most power.
Eniac26,
You enjoy the Pass Lab sound but want to improve sound quality. I believe that move to the XA30.5 would be an excellent choice it provides 30W/8 ohm and 60W/4 ohms all class A.With 90db efficiency you don`t really need as much power as you may think and also factoring your room size.

If you go class D I`d want to audition if at all posibble.
Best of Lock,