Designer:
henhez
Project Category:
Tower Speakers
Project Level:
Intermediate
Project Time:
20+ Hours
Project Cost:
$100 – $500
Project Description:
This is a version of Dr. K’s MTM, in a ported 41″ floorstanding enclosure
Design Goals:
I wanted to build a furniture quality speaker that would rank highly on the WAF. I also wanted to use paper-backed real wood veneer for the first time.
Driver Selection:
Drivers are identical to Dr. K’s MTM.
Enclosure Design:
Enclosure is made of 3/4″ MDF with three window pane braces and roughly 1/2″ roundovers on the baffle and rear.
Enclosure Assembly:
I wanted to build the entire cabinet without using screws, nails, biscuits or any other fastener except wood glue. I cut a rabbet on all four sides of the baffle and rear panel so they would slot right in.
Crossover Design:
The crossover is identical to Dr. K’s MTM.
Tips & Tricks:
You can use regular Titebond to apply the veneer. I rolled a thin layer on the cabinet and on the veneer then let it dry for roughly 30 minutes. Then I used a dry iron to melt the glue and apply the veneer, see pictures.
Conclusion:
I am very pleased with the way these speakers look and sound. It took me nearly 6 months to finish them but, it was worth every minute!
About the Designer:
I’ve built half a dozen projects from Parts Express but I’ve never made anything that looks and sounds as good as these!
Project Parts List:
|
Part # |
Description |
Qty |
|
295-364 |
Dayton-Audio RS180S-8 7″ Reference Shielded Woofer 8 Ohm |
4 |
|
275-131 |
Dayton Audio RST28A-4 1-1/8″ Reference Series Aluminum Dome Tweeter 4 Ohm |
2 |
|
#004-7 |
Dayton Audio DNR-7.0 7 Ohm 10W Precision Audio Grade Resistor |
1 |
|
#005-2 |
Mills 2 Ohm 12W Non-Inductive Resistor |
1 |
|
#027-415 |
Dayton Audio DMPC-2.2 2.2uF 250V Polypropylene Capacitor |
1 |
|
#027-430 |
Dayton Audio DMPC-12 12uF 250V Polypropylene Capacitor |
1 |
|
#027-432 |
Dayton Audio DMPC-15 15uF 250V Polypropylene Capacitor |
1 |
|
#027-436 |
Dayton Audio DMPC-20 20uF 250V Polypropylene Capacitor |
1 |
|
#091-1246 |
Dayton Audio BPA-38NI HD Binding Post Pair Nickel |
1 |
| #255-198 | Jantzen 0.025mH 18 AWG Air Core Inductor |
1 |
|
#255-220 |
Jantzen 0.33mH 18 AWG Air Core Inductor |
1 |
|
#255-238 |
Jantzen 0.70mH 18 AWG Air Core Inductor |
1 |
| #255-404 | Jantzen 0.33mH 15 AWG Air Core Inductor |
1 |
|
#255-632 |
Jantzen 1.2mH 16 AWG Copper Foil Inductor |
1 |
|
N/A |
Paper-backed Sapele veneer |
1 |