Background:
I have built myself a pair of 2-way TQWT speakers based on the DC28F-8 (8ohm/50wrms) and DSA175-8 (8ohm/70wrms)
they sound good but my current amplifier is 2 x 25wrms.
What size amp do i need? 120 watts (50 + 70) max or only 50 watts per channel because of the tweeter or 60 watts the average of the two?
I do not have any experience with amp selection (obviously) and can really use some input on this matter.
I have built myself a pair of 2-way TQWT speakers based on the DC28F-8 (8ohm/50wrms) and DSA175-8 (8ohm/70wrms)
they sound good but my current amplifier is 2 x 25wrms.
What size amp do i need? 120 watts (50 + 70) max or only 50 watts per channel because of the tweeter or 60 watts the average of the two?
I do not have any experience with amp selection (obviously) and can really use some input on this matter.
What size amp do i need? You need an amplifier with the output power that can generate a sound pressure sufficient for the room where you use for the sound gear and for the type of music.
A strange formulation but indicating that it is not because you have speakers with a stated power of XXWatt that you also need an amplifier with that output power. As long as the amplifier is not distorting seriously, the output power in transients may significantly exceed the power rating of the speakers without damage. But, if the amplifier distorts importantly, the speakers may be harmed with an amplifier power below the rated speaker power. Next, if you have huge and powerful speakers in a small room, you have no benefit from an amplifier close to the power of the speakers. If you use such a powerful amplifier in the small room, you cannot stay in the room.
I'm no specialist in your question but for those very skilled in such topics most of us would like to know the size of the room, the type of music you normally enjoy and if you have a particular hearing deficit or prefer very loud sound levels.
A strange formulation but indicating that it is not because you have speakers with a stated power of XXWatt that you also need an amplifier with that output power. As long as the amplifier is not distorting seriously, the output power in transients may significantly exceed the power rating of the speakers without damage. But, if the amplifier distorts importantly, the speakers may be harmed with an amplifier power below the rated speaker power. Next, if you have huge and powerful speakers in a small room, you have no benefit from an amplifier close to the power of the speakers. If you use such a powerful amplifier in the small room, you cannot stay in the room.
I'm no specialist in your question but for those very skilled in such topics most of us would like to know the size of the room, the type of music you normally enjoy and if you have a particular hearing deficit or prefer very loud sound levels.
Last edited:
As important as how much power an amp is rated at, is how well it recovers from clipping. It is possible for a 20w amp to play louder than a 200w simply because of the nature of your amps clipping.
You can completely disregard the speakers power rating when choosing a amplifier (partially because speaker power ratings have no standard).
dave
You can completely disregard the speakers power rating when choosing a amplifier (partially because speaker power ratings have no standard).
dave
Hi
as my co write comment...
the rating of the speakers says nothing about the "needed" amp.
speakers/amp . speakers are rate for the max power level what they can do....very important is the linear hub(movement) of a quality chassis...its like the tires of the car...you can go up to e.g. 240 speed but its not needed. so you amp just have 20-30W into 8 ohms and you will have a loud not distortion sound. thats the target.
are you interested in doing some DIY work?...pimp a ready amp or you look for an "commercial" amp.
after 30 years....and after 2 years DIY...i personally will not buy any commercial amp now
chris
as my co write comment...
the rating of the speakers says nothing about the "needed" amp.
speakers/amp . speakers are rate for the max power level what they can do....very important is the linear hub(movement) of a quality chassis...its like the tires of the car...you can go up to e.g. 240 speed but its not needed. so you amp just have 20-30W into 8 ohms and you will have a loud not distortion sound. thats the target.
are you interested in doing some DIY work?...pimp a ready amp or you look for an "commercial" amp.
after 30 years....and after 2 years DIY...i personally will not buy any commercial amp now
chris
To be a bit specific this time, with a good size living and music that may have dominant bass I would assume some 2x100-120W should do.
yes...this is the amp i had since 3 days...yesterday i had the first listening test from scratch. this amp costs 34 euro over amazon and its very small and sounds good!
https://www.diyaudio.com/forums/cla...tpa3116-2-0-100w-dual-chip-3.html#post5793784
chris
Wellll... Being a hapless Sucker for most Dreams of the week .
I'll admit to trying ' several' Cheap *** Chinese 3116 'amps'.
The 'preferred' Audio weenie versions of course And even subsequently modding them... as per Internet Wisdom..with sad result.
Harsh/shrill.. totally unpleasant, is my experience.
A disheartening waste of time , money and hopes. Can only assume people using these to enjoy Utube tunes through their $ store earbuds.
Even the meanest of speakers reveals their worthlessness.
Seriously? I can only surmise your board modifying skills are equal to your Yamaha 2 stroke tuning abilities...
While this is true in general, it may be that OP is asking about a stronger amplifier because maybe the 25w amp gives enough volume, but perhaps it struggles on peaks and sustained loud volume?
25w vs 120w: If both of these amps give compareably clean power at rated output, the 120W one may not be a whole lot louder, but just over 6db is a very noticeable difference, and on bass peaks you'd most certainly prefer the more powerful one, all else being equal. More cone control on large excursion and all that.
Edit:
I see many are happy with the TPA3116, and while they have their use, I think they're too noisy for high efficiency speakers. It may be fine for smaller speakers with less sensitivity, but at least for me, there seems to be better amplifier solutions that give less noise and hiss.
One of the best arguments in favour of the TPA3116 is the price to performance ratio, but I think the TPA3250 beats it in all other aspects, and they're not that much more expensive.
Last edited:
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.