Floor Speakers
Designer: Anthony Lester
Project Level
Beginner
Project Time
20+ Hours
Project Cost
$100 – $500
Project Description
Floor standing speakers
Design Goals
Floor standing speakers for music.
Driver Selection
HiVi M8N 8″ Aluminum/Magnesium Woofer
Part # 297-446
Tymphany BC25SC06-04 1″ Textile Dome Tweeter
Part # 264-1028
HiVi M6N 6″ Aluminum/Magnesium Midbass
Part # 297-441
Enclosure Design
The speaker cabinets are 1.13 cubic feet 35″ x 10″ x 7″. made of pine.
Enclosure Assembly
I used wood glue and wood screws for all sides of cabinets except front. Only used glue on the front of speakers I wanted a clean look.
Crossover Design
Dayton Audio XO3W-625/5K 3-Way Speaker Crossover 625/5,000 Hz
Part # 260-154
Parts Used
Parts Express Recessed Speaker Wire Terminal Cup Banana 5-Way Binding Posts
Part # 260-303
Parts Express Speaker Cabinet Port Tube 1-3/8″ ID Adjustable
Part # 260-388
HiVi M8N 8″ Aluminum/Magnesium Woofer
Part # 297-446
Tymphany BC25SC06-04 1″ Textile Dome Tweeter
Part # 264-1028
HiVi M6N 6″ Aluminum/Magnesium Midbass
Part # 297-441
Conclusion
My first speaker build was a tremendous amount of fun. The speakers sound great, the bass response is a little weak for me but I’m still working with ports and insulation. The speaker cabinets are 1.13 cubic feet 35″ x 10″ x 7″. made of pine. Speakers and electronics cost about $275.00 Parts Express was great to order from delivery was fast and everything was well packaged. I will order from Parts Express many more times. I have a pare of Klipsch Synergy F3 floor speakers that have two eight inch woofers in them. My speaker build sounds just as good other the bass response.
Tips & Tricks
Take your time.
About the Designer
Anthony Lester 50 years old. I have a great love for music. I always took wood shop in junior high and high school. I thought this was a good way to bring my skills back to life.
Look nice! That tweeter is pretty efficient compared to the other drivers. If you haven’t done so already, I would try experimenting by adding a resistor (around 6 to 8 ohms?) in series with the tweeter to bring down the tweeter output and see how it sounds.
THE CROSSOVER IS 8 OHM AND THE TWEETER IS 4 OHM.
Nice job on the project and documentation. I recently started working with the M8N and found that it wants a really large enclosure to enable deep base. I measured my woofers and entered the parameters into WinISD software and it called for an 84 liter enclosure tuned to 25 Hz. So yeah, that’s huge for one 8″ woofer. I’m looking for a different woofer now, something with a lower Fs and Q.
To improve this speaker I recommend the following.
1) Add a 4ohm resistor in series with the tweeter after the crossover. This crossover is designed for an 8ohm tweeter, This will correct the crossover points and have the added bonus of reducing the tweeter output by 30-40%
2) Add an 8ohm L-pad to the midrange driver after the crossover. You can then turn the midrange down to match the reduced output of the tweeter.
Reducing the tweeter and midrange will result in the 8inch woofer appearing to be louder. This will increase the bass. The 8inch woofer has a lower sensitivity so you should have expected to have low bass at the start. I would have originally built this with two 8inch woofers, with the second woofer running its own crossover of a simple 6db lowpass at 150hz. So only the deep bass is increased
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