1. Solid inner shelf/brace isolates midrange and tweeter from woofers
Speaker Components List and Dimensions
Dayton Audio DC25T-8 1" Titanium Dome Tweeter Part #
Dayton Audio RS " Reference Woofer Part #
" Heavy Duty Woofer with Rubber Surround 4 Ohm Part #
Square Speaker Terminal Cup 4" Gold Banana Binding Post Part #
Speaker Cabinet Port Tube 2-1/2" ID x 8-1/2" L Flared Part # (cut for tuning)
Crossover Audiopipe model CRX-3005KHP with crossovers of 675Hz and 5000Hz w/fused drivers
Specification values are approximate
Frequency response: 38Hz – 20kHz
Sensitivity 89dB
Crossover: 625Hz/5000Hz
Input impedance: 8 ohms
Power rating: 160 watts
Dimensions: 40”H x 11”W x 14”D 3D
front
Rear
side 4” 1 3”
cutout
Solid inner shelf/brace isolates midrange and tweeter from woofers
16”
10” 2 4”
cutout
20”
19” 7 3
Speaker
connections
+ -
40” 3”
cutout 5
0.25”
wire feed hole
24”
29”
7.125”
cutout 4
36.5”
3.75”
cutout 6
tuned
port cut to 4.5”
Internal brace
11”
14”
cutout
cutout

2. Wiring Schematic - Crossover Network
3-way, 2nd Order (12dB) Reverse Polarity 625 Hz/ 5000 Hz 8 Ohm Tweeter/8 Ohm Midrange/8 Ohm Woofer Bandpass Gain ~ 2.5 dB
Spread ~3 octaves
Components List
Metalized film capacitors C1 = 2.0 uF C2 = 20.0 – 22.0 uF C3 = 2.0 uF C4 = 15.0 – 16.0 uF Inductors L1 = 0.50 mH L2 = 4.0 mH L3 = 0.40 mH L4 = 4.0 mH
fuse C1
Input
(8 ohm)
Tweeter (8 ohm) L1
fuse L3 C2
Midrange (8 ohm) L2 C3
fuse L4 C4
Woofers (4 ohm each in series)

3. Solid inner shelf/brace isolates midrange and tweeter from woofers
Speaker Cabinet Dimensions and Cutouts
OD = 40 inches tall x 11 inches wide x 14 inches deep
Wood thickness = ¾ inches
3D view
Front
Rear
Side
From top 4”
on center
From top
3” dia.
cutout
Solid inner shelf/brace isolates midrange and tweeter from woofers
Shelf/brace
16”
on center
10”
on center
3”dia.
cutout
4” dia.
cutout
From top
20”
on center
Solid shelf
crossover
Input + -
40”
tall
19”
on center
0.25”
wire feed hole
From top
Brace
24”
on center
7.125” dia.
cutouts
brace
3.75”dia.
cutout
29”
on center
36.5”
on center
tuned
port cut to 4.5”
Internal brace
11” wide
14” deep
cutout
cutout

4. Features Heavily braced cabinets
Midrange and tweeter are isolated from the woofers
High density acoustic dampening material
Rear mounted flared tuned port
Crossover design utilizes:
all precision metalized film capacitors in both the midrange and tweeter signal path as well as the low pass signal path
both air core and iron core copper wound inductors
all driver paths are individually fused
Gold plated banana binding posts
All connections to binding posts and drivers are soldered