Been wanting to build my own pair of monitoring speakers for my tiny 3m L by 3.2m W by 2.8m H bedroom for a while now, and researched that concrete would be a great material for use in a cabinet due to price and acoustic properties as I would be able to get them closer to the rear wall and reduce transmission to the stands.
The drivers I plan on using are
Here's a basic sketch of the design, Ideally the corners would be rounded and with an angled back to reduce direct reflections to the woofer. (I'm not 100 percent sure about the angled back idea tho...) and I plan on adding a subwoofer system in the future to go with the monitors.
Sealed design:

Ported design.

At this price range including all the parts, would this be a good system to build? or should I get a $500 pair branded monitor speaker system??
I would use the system for casual listening as well as music production and basic mixing and would love to have ribbon tweeters. but it this idea worth the effort???
List of all the parts planned for the build, no cabinet included.
The drivers I plan on using are
- Tang Band W4-1720 4" Underhung Midbass Driver rated at 30W Rms - 60W max - 4 ohms.
- Fountek Neo X 1.0 Ribbon Tweeter Black rated at 20W Rms - 38W max - 8 ohms.
Here's a basic sketch of the design, Ideally the corners would be rounded and with an angled back to reduce direct reflections to the woofer. (I'm not 100 percent sure about the angled back idea tho...) and I plan on adding a subwoofer system in the future to go with the monitors.
Sealed design:
Ported design.
At this price range including all the parts, would this be a good system to build? or should I get a $500 pair branded monitor speaker system??
I would use the system for casual listening as well as music production and basic mixing and would love to have ribbon tweeters. but it this idea worth the effort???
List of all the parts planned for the build, no cabinet included.
- 2 x Fountek Neo X 1.0 Ribbon Tweeter Black --------------------------------------------------------------------------------------------($78.90 each x 2 = $157.80 )
- 2 x Tang Band W4-1720 4" Underhung Midbass Driver -------------------------------------------------------------------------------($55.79 each x 2= $111.96)
- 1 x MiniDSP 2x4 Kit Digital Signal Processor Assembled Board ------------------------------------------------------------------($80.00)
- 1 x WONDOM AA-AB33182 4x100W at 4 Ohm Class D Digital Audio Amplifier Board STA508 (TK2050) ------------($55.98)
- 1 x Mean Well MW NES-350-24 24 VDC 14.6A 350W Regulated Switching Power Supply --------------------------------($35.97)
- 1 x Dayton Audio EMM-6 Electret Measurement Microphone ----------------------------------------------------------------------($45)
- 4 x Dayton Audio BPA-38G HD Binding Post Pair Gold------------------------------------------------------------------------------(4 x $5.00 each x 4 $20.00)
- 4 x Dayton Audio BPA-38G HD Binding Post Pair Satin Nickel--------------------------------------------------------------------(4 x $5.00 each x 4 $20.00)
- 1 x RCA AH1650SR 16 AWG Speaker Wire Spool 50 ft.------------------------------------------------------------------------------($8.96)
- 1 x Parts Express Chassis Mount RCA Jack Pair -------------------------------------------------------------------------------------($6.99)
- 2 x Banana Speaker Plug 2 Pair--------------------------------------------------------------------------------------------------------------(2 x $9.95 each = ) Opcional.
- Total: -------------------------------------------------------------------------------------------------------------------------------------------------$561.76
- Total without banana plugs.------------------------------------------------------------------------------------------------------------------$542.28
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