Need help and advice from Gurus of Audio
I've got an old HT system, it includes a DIY center speaker a DIY subwoofer, kenwood KRF 7773D receiver, control 5 rears (it was popular at the begining of 2000s), and Infinity SM-255 fronts.
Because I moved to another country in Europe, I couldn't bring huge Infinity front speakers and I bought a pair of JBL Northridge E80. And I renewed my Kenwood receiver with ONKYO NR 686 receiver.
Now, I want to update my whole speakers except jbl e80s. My DIY project steps as following:
STEP1 - CENTER CHANNEL DRIVERS UPGRADE: I firstly want to start with renewing my center channel's midrange (or fullrange, or woofer? I'm not so sure how it is called) drivers with better/professional ones. I want to keep my current MDF box (sealed) because its really very good quality. Can you please help me to choose the correct drivers for my current MDF box size ? I tried to use winisd, diyaudioandvideo website's calculators but unfortunately this calculators gives you the volume/dimension of box that you need to use -if you know which drivers you will use. But my situtation is different. How can I choose right drivers for my current center box? My MDF box size is as following :
H : 17,5cm (6,70inches) - W : 51cm (20inches) - D : 32cm (12,5inches)
Hole's diameter (baffle cutout) on the box : 12cm (4,7inches)
My old 2pcs drivers (which I bought on 2001 ) made in china very bad quality drivers (Brand : BOTS, Model: PA-5G40A1 8ohm). They are 6inches. Tweeter is B&C brand Model: D 32-8.
So, I want to buy 2pcs midrange (or full range ? ) professional and use them on my Center channel, and a proper XO also. Do you think I need to renew my current B&C tweeter too?
STEP2 - SUBWOOFER DRIVERS UPGRADE: I dont know if it is necessary or not. I made this subwoofer on 2001. I used a Kenwood KFC-WF303 subwoofer driver (4ohm 600w peak, 12inch) and the MDF box dimension (ported) as following :
H: 44,5cm (17,5inches) - W: 48,5cm (19inches) - D: 40,5cm (15,9inches)
I really have no idea with this onkyo receiver plus front JBL E80s and rear speakers (which I want to update too) if this kind of subwoofer driver will be compatible or I need to change this subwoofer driver also (as in the center channel I really want to keep this current MDF box) If yes, depending on this box dimensions/volume, what is the best subwoofer driver that I need to buy ?
PS: my current subwoofer does not have a crossover inside, do I need to use a crossover also ? If yes can you please let me know where can I buy that too ?
STEP 3 - DIY PROJECT FOR REAR AND BACK SPEAKERS : I read so many threads, topics, messages, DIY projects before I decided to write on here, please dont think I did not try to find my own best solution by myself first. But I know there are so many factors, values, calculations before making a decision to buy a new pair of rear or back speakers. My current Control 5 rear speakers are also very bad quality surround speakers. I really want to complete my HT system with correct drivers and correct speaker set. In next step I want to add 2 pairs of Dolby Atmos enabled speakers onto my fronts and rears, I read all dolby atmos DIY topics and messages and finally I decided to start my dolby atmos DIY as Javs project. For that atmos speakers I will order 16pcs Faital 4FE32 drivers and will make my own atmos add-on speakers. Depending on all these details, which surround speakers will be the best and reasonable choice for my HT system? Can you please suggest me some DIY or ready to buy surround speaker options please?
FINALLY STEP 4 - 2 PAIRS JAVS DOLBY ATMOS ENABLED SPEAKERS DIY : As I've written about it on step 3, I really want to add these 2 pairs add on atmos speakers to my system. Good to hear that, there is no need use XO for this speakers. Thanx once again to Javs for his awesome sharing.
I know most of you are professionals, gurus of audio. And I know you've written so many times to newbies they need to read, search, understand the logic. But I really spent my 2 months by reading all relevant topics, threads and messages but honestly I could not understand what I need to do or choose for my new drivers needs, except Javs dolby atmos DIY thread.
Please help me to start my this project by understand and know which drivers I need and which speakers DIY I need.
Becasue Im living in Europe, I prefer to buy Faital drivers for all my project steps. Because they are Italian manufacturer, it's really easy for me to find their products in Europe market without extra custom tax (which I will need to pay if I buy from US).
Thanx in advance