It depends on how good you want speaker to sound.
In general, it's a difficult task and requires professional measurements in echo-free place or using electro acoustic devices that can factor-out the room acoustics and show the real characteristics of the final product.
Today's audio acoustics can be divided onto few categories:
someone mentioned mass serial production speakers such as Kef, Bose, Tannoy, B&W, JBL, Polk...etc... that mainly built-up on very cheap drivers. Repeating such speakers will not bring a desirable result since they've been matched to their best at professionally staffed labs; speakers such as Proac, Totem, JM Lab, Gershman, AudioPhysics, Vandersteen...
What we DIY-ers can do in that case? We can spend equal to Kef monitors and get the rich and full sound of a floorstanding speaker but drivers will cost $200 for woofer and $75 for tweater for each speaker instead of $20 and $5 respectively.
What professional builders can do? They also can get high quality drivers and match them up to their very very best in echo-free or suited and staffed lab for speaker building and in this case I guess homebrews will factor out.
To build speakers for living you need to spend arround $6k for software, measurement devices, microphones and microphone amplifiers.
Carefull measurement and matching not only important to adjust crossover(usually used electronic first to bring-up the values of passive elements), reselect drivers, etc... but also important to be on the specification. Homemade DIY speakers are basically the ones that have no precise specification with exception to the specification placed on DIY kit that in reality can alter in sufficiently large decibells. Marketing skills are also a big plus i.e. you should know what is the best marketed specification and how close your specification to marketed:-)
In general, it's a difficult task and requires professional measurements in echo-free place or using electro acoustic devices that can factor-out the room acoustics and show the real characteristics of the final product.
Today's audio acoustics can be divided onto few categories:
someone mentioned mass serial production speakers such as Kef, Bose, Tannoy, B&W, JBL, Polk...etc... that mainly built-up on very cheap drivers. Repeating such speakers will not bring a desirable result since they've been matched to their best at professionally staffed labs; speakers such as Proac, Totem, JM Lab, Gershman, AudioPhysics, Vandersteen...
What we DIY-ers can do in that case? We can spend equal to Kef monitors and get the rich and full sound of a floorstanding speaker but drivers will cost $200 for woofer and $75 for tweater for each speaker instead of $20 and $5 respectively.
What professional builders can do? They also can get high quality drivers and match them up to their very very best in echo-free or suited and staffed lab for speaker building and in this case I guess homebrews will factor out.
To build speakers for living you need to spend arround $6k for software, measurement devices, microphones and microphone amplifiers.
Carefull measurement and matching not only important to adjust crossover(usually used electronic first to bring-up the values of passive elements), reselect drivers, etc... but also important to be on the specification. Homemade DIY speakers are basically the ones that have no precise specification with exception to the specification placed on DIY kit that in reality can alter in sufficiently large decibells. Marketing skills are also a big plus i.e. you should know what is the best marketed specification and how close your specification to marketed:-)