Modular Towers

Modular Towers


Project Category:
Tower Speakers

Project Level:

Project Time:
20+ Hours

Project Cost:
Over $1,000

Project Description:
Bottom Sub has 1x 10″ Dayton RSS265HF-8 Subwoofer, 1x 10″ Dayton RSS265-PR Passive Radiator.

2x 4″ Dayton RS100-8 Midranges wired in parallel for 4 ohms

1x Raal 70-10 Ribbon Tweeter running at 8 ohms. 15uF capacitor wired in series to avoid any accidental low end thumps which would destroy the tweeter instantly.

Top Sub has 1x 10″ Dayton RSS265HF-8 Subwoofer wired in parallel with the bottom sub creating a 4 ohm load total for the subwoofers.

I’m running a 3-way active crossover (DBX 234XS) which gives me so much control over my speakers. I can really fine tune the sound I want in the room.

The subwoofers are powered by an ART SLA-2 with 280 watts a side RMS

The midranges and tweeters are powered by an ART SLA-4 with 140 watts RMS going to the midranges and approximately 100 watts RMS going to the tweeters.

Design Goals:
I wanted to create the best sounding speakers with as much versatility as possible.

Driver Selection:

Enclosure Design:
Passive Radiator on Bottom Sub
Sealed on Top Sub
Sealed Midranges & Tweeter

Crossover Design:
No crossover as I am using an active external crossover with tri-amping

Overall I am extremely happy with the sound, definitely blow my old Dynaudio BM15A’s out of the water. The Raal tweeters are the crown jewel of my build. They sound literally, REAL. They’re extremely smooth and have such a nice “air” to them. Everything is so silky and I’m amazed at the dispersion, much wider than I anticipated. The midranges sound great and the subs are very tight and controlled. No “woofy” sounds going on but I can get the thump in my chest if I want.

About the Designer:
I build custom bespoke bluetooth speakers and this is my first Hi-Fi build

Project Parts List:

Dayton Audio RSS265HF-8 10″ Reference HF Subwoofer 8 Ohm
Dayton Audio RSS265-PR 10″ Aluminum Cone Passive Radiator
Dayton Audio RS100-8 4″ Reference Full-Range Driver


Add yours
  1. 3
    Dan Tadie

    Beautiful speakers! I’ve always loved tower speakers and still lsut for Dunlavy’s. It’s great you went active, as that likely accounts for some of the enhanced clarity over passive crossovers. Well done!

  2. 4

    Nice build! I am in the process of putting together a similar build, the configuration will be much different, but the goals are probably similar. I like the modular concept; I’ve never met someone that happy with a set of speakers to the point of never making changes. You are only missing one thing; you need a set of $50,000 speaker wires to bring out the chocolatey mid-range and make the background sound blacker. Remember, speaker wires require “burn-in, and are directional, don’t forget the little LED light 😉

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