Please visit https://www.danmarx.org/blog/ for all my latest speaker projects!

• Dayton Audio UM15-22 Ultimax Subwoofer
• 19.5 x 19.5 x 19.75 (WxHxD)
• 80 liter (2.82 f cu. ft.) Sealed Enclosure
• 3/4" MDF Construction with 1/4 finish panels and double-front baffle
• Interlocking Cross-panel Bracing
• 2 lbs poly-fil
• f3 = ~31 Hz
• Rubber Feet
• miniDSP for low-end extension and in-room correction
• Powered by a single Crown XLS 1002 Amplifier in bridged mode

Dayton Audio RS MTM 2-way Center Channel Speaker

• (2) Dayton Audio RS125-4 Aluminum Cone Woofers
• (1) Dayton Audio RST28F-4 Fabric Dome Tweeter w/Truncated Frame
• 8.7 liter enclosure tuned to 60 Hz with 2x6 inch port
• 12 dB/octave low-pass and high-pass filters at ~2.7 kHz with air core inductors and metalized polypropylene capacitors
• 3/4 inch MDF with 3/4 inch solid oak sides and 3/4 inch roundovers
• 55-20,000 Hz ±2.5 dB frequency response measured
• Semi-gloss Black Finish with Dark Walnut solid oak sides
• Matching timbre and look to RTS181.3 bookshelf speakers

Dayton HiVi RTS181.3 Two-Way Bookshelf Speaker

• Dayton Audio RS180-8 Reference Series 7" Aluminum Cone Woofer
• HiVi Research Planar Ribbon Tweeter
• 0.57 cu. ft. Ported or Sealed Enclosure (with port plug)
• Ported tuned to 41 Hz with 2" x 7" port
• 24 dB/octave external crossovers at 2.8 kHz with full BSC
• Real-wood Oak sides in Dark Walnut Stain Finish
• Black finish in Semi-gloss (semi piano black, but not quite as good)
• Flat frequency response 39-20,000 ±3 dB

DM-4 Active Reference 3.5-Way Loudspeaker

• (2) 8" RS-225P Dayton Audio Reference Series Woofers
• (1) 7" RS-180P Dayon Audio Reference Series Woofer
• (1) 1-1/8" RS28F Dayton Audio Reference Series Soft Dome Tweeter
• Sloped front baffle for perfectly time-aligned midrange and tweeter
• Vented 85L lower cabinet tuned to 32 Hz for SBB4 alignment
• Frequency Resonse 25-20,000 Hz
• Active crossover via pair of MiniDSP 4x2 crossovers
• 6-channel 100 watt/channel Emotiva amplifier
• Piano Black Satin finish on front/top/back/bottom
• Birch plywood sides stained in Classic Gray
• Check out www.danmarx.org/blog for details
• Check out the DM-4 Reference link on the left 

TC Sounds 15" LMS Series Sealed Subwoofer x4

• 4 subs with 4 Crown XLS-2500 Amps
• TC Sounds LMS-15R Subwoofers
• Sealed 90L/3.1 cu.ft. Enclosures
• 3/4" MDF with Window Bracing and 1.5" think front baffle
• 2" fiberglass insulation on interior walls
• Painted Black
• Matched with a set of Klipsch Ultra II Home Theater Speakers

Audipulse 12" Epic HT Bookcase Subwoofer

• Audiopulse EPIC 12" Subwoofer w/dual 4 ohm coils
• 95L Enclosure tuned to 22 Hz
• 4" PVC port 17.5" long with 6" flare
• Flush-mounted driver with 1.5" thick front baffle
• Made from 3/4" MDF
• 20-3/8" x 26-5/8"x 15" (WxHxD)
• Flat in-room response to 20 Hz
• -3 dB point 18 Hz
• 600W RMS capability
• Painted in Linen White to match entertainment center

Dayton Reference Series Bookshelf Speakers - Ala Encore

• 6" Dayton Reference Series Woofer RS-150A
• 1" Dayton Reference Series Tweeter RS-28A
• 0.30 cu.ft sealed encosure
• Flush-mounted drivers
• Jantzen Air Core Inductors
• Dayton Metallized Polypropylene Capacitors
• 4th order slopes (now) without Baffle Step Compensation

TC-3000 100L Sealed Sub wth HPSA1000 Amp

• 15" TC Sounds TC-3000 Subwoofer with Black Ti Cone
• 1000W HPSA1000 Plate Amp
• Parametric EQ
• 100L Sealed enclosure
• Qtc = 0.65
• 3/4" MDF and 1/4" Oak Veneer
• Beveled Top Edges
• 146 pounds
• In-room response -3 dB point at 20 Hz

Dayton-Morel 7" MTM Home Theater Speakers

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• 7" Dayton Aluminum Woofers
• 1" Morel MDT-20 Tweeters
• MTM configuration
• Left/Right Speakers in a 1.52 cu.ft. box tuned to 34 Hz with 3" x 7-3/4" port
• Center Channel Speaker sealed box 0.88 cu.ft.
• 18dB/octave crossover at about 1.9kHz
• Cabinets mounted into wall

RSS 10" Sealed Sub

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• Dayton RSS 10" HF Subwoofer
• Bash 300W Plate Amp
• 22L sealed enclosure (0.77 cu.ft.)
• 15.5 x 11.75 x 11 (W x H x D)
• Flat black finish
• Raised Grill Cover
• 100% filled - fiberglass and polyfill
• $250

Monitor W625X 2-ways

• Hi-Vi 6.5" W6 Woofer
• Vifa DX25T Tweeter
• Ported Enclosure
• Custom Crossover using FRD's Passive Crossover Designer 3.0
• Oak side panels with solid black front and back
• Inexpensive but great sounding 2-way using somewhat non-traditional drivers

AI 10S Surround Sound Speakers

• 5.25" Speaker Buyout from Parts Express (Atlantic Technology I believe)
• 1/2" Polymer Dome Tweeter
• Bi-bole/Di-pole Speakers on a budget
• Stone finish with spray paint from Home Depot
• They serve their purpose without much class or style

Two-way Center Channel

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• 6.5" Vifa M17SG-09-08
• Morel's DMS-29
• Fully shielded for video
• Piano black finish (semi-glossy)
• Oak ends finished in Minwax Special Walnut
• 12db/octave L-R crossover
• Sealed enclosure Qtc = .71

Swans M3 Floorstanding Speaker System

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• Hi-Vi RT1C-A Aluminum Ribbon Tweeter
• Hi-Vi F5 5" Kevlar Cone Midrange
• (2) Hi-Vi W6 6.5" Woofers
• Frequency Response 37-30,000 Hz
• Crossover points 300 and 3.3KHz
• 12 dB/octave Linkwitz-Riley type
• 100 watts continuous, 200 Peak
• 41"x9-1/2"x14-7/8" (HxWxD)
• Four Toe Spikes
• Gold Plated Binding Post Terminals
• Large 4" Port
• 14 Gauge MIT Internal Wiring Structure
• Red Oak Sides and with Flat Black front and top
• Exceptional Sound Quality and Image Detail
• Weight:  98 pounds each

TC Sounds 15" Subwoofer

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• 15" TC Sounds Driver
• 5.00 cubic foot enclosure
• Tuning frequency 23 Hz
• 800 watts RMS/1600 watts peak
• Dual 4 ohm voice coils
• Patented Tri-Way Shelf Bracing Technique
• Gold Plated Binding Post Terminal
• Flat Black Enamel Finish
• 21"W x 24.5"H x 26.5" D
• Dual 4" Front Firing Ports
• Egg Foam Insulation

10Triple10 Passive Radiator Sub

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• Single Long Throw 10" Woofer
• 3 10" Flat Passive Radiators
• 1.35 cubic foot enclosure with 30 Hz tuning
• 3 dB down point 35 Hz
• Green Marble Top
• Dual gold plated 5-way binding posts
• 200 watts RMS/350 Peak
• Dual 4 ohm voice coils

Ported Shiva in QB3

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• 12" Shiva Subwoofer
• Ported 2.90 cubic foot enclosure
• Tuning Frequency of 25 Hz
• 500 Watts RMS/800 Peak
• Nominal impedance 4 ohms
• Single gold plated binding post terminal
• 3 dB down point 27 Hz
• Painted in black lacquer

EBS Shiva with 15" Passive Radiator

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• 12" Shiva Subwoofer
• 15" Avatar PR-15
• 4.75 cubic foot enclosure
• Tuning Frequency of 18 hz
• 3 dB down point 20 Hz
• Dual gold plated binding posts
• Black grill cloth
• Covered in Birch plywood and stained

15" Ultimate Attitude Subwoofer

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• 15" Ultimate Attitute Driver
• 2.75 cubic foot enclosure
• Tuning frequency 30 Hz
• 3 dB down point 38 Hz
• Covered in Mahogany Plywood
• Single gold plated binding post terminal
• Nominal impedance 4 ohms
• 350 Watts RMS/500 Peak
• 91 dB 1W/1M

The Old Surround Speakers

• 5-1/4" MCM Aluminum Woofers  Click here to see the new ones.
• 3/8" Audax Polymer Dome Tweeter
• 6 dB/octave Crossover at 4KHz
• Covered in Mahogany
• Stained Deep Cherry
• 50 Watts RMS
• 75 Watts Peak
• 8 Ohm Impedance

The Old Center Channel

• This is my ugly old center channel.  Click here to see the new one.

• 6-1/2" Vifa Woofer

• 1-1/8" Morel DMS-29 Soft Dome Tweeter

• Shielded for TV use (back when CRTs were still in existance)

• Cherry Red Stain

• Made of Plywood

• 50 Watts RMS

• 75 Watts Peak

• 8 Ohm Nominal Impedance

• Gold Plated Binding Post Terminals

15" 3-way Speaker

• 15" Ultimate Attitude Woofer
• 5-1/4" Pioneer Sealed-back Midrange
• Peerless 1" Soft Dome Tweeter
• Slotted Port Design
• Deejay Carpet Finish
• Rockin' Sound!

I built these speakers back in 1993 for a friend of mine for his birthday at the request of his mom.  She wanted to get him something really cool for his b-day, so I told her I could make him some rad speakers, she agreed, and this was the result.  We compared these speakers to my brothers 15" Cerwin-Vega! 3-way speakers which cost him $800 and believe it or not they sounded almost nearly as good.  And these speakers cost just around $150.  Hey Jared, do you still have these speakers?

DIY DJ Speakers - The Start of it All - 90's Era

• 15" Pioneer 3-way with Piezo Midrange and Tweeter in Sealed Box
• 15" Pioneer 3-way Horn-loaded in Slot-loades Box
• 15" Cerwin-Vega! Folded Horn Sub in Ported Box

So this is pretty much when it all began, at the age of 15, me and a friend decided to start DJ'ing local parties and dances.  Being short on cash, as most teenagers are, we built our own speakers.  We called our DJ gig Audio Innovation.  The most unique of these early speakers we built were the 15" Cerwin-Vega! subs in the folded horn enclosure.  It was modeled after a sub they use to make for DJ'ing and it had so much bass it was unreal.  The efficiency of such a design was through the roof, and we could fill huge auditoriums with thumping bass.  I remember playing songs like Wild Thing and You Can't Touch This (gag) and just loving all the bass.  I'm not so much a bass-head anymore, but those were some good times.  This picture was taken in sometime in 1990.  That's me in the middle with my old friend Brian and my little brother Stephen sitting on the bed.