Scan-Speak Revelator 3Scan 3-Way Speaker Kit - Pair

Scan-Speak Revelator 3Scan 3-Way Speaker Kit - Pair

Designed by Javad Shadzi

Commissioned by Scan-Speak for Axpona 2025 and demoed again @ Axpona 2026!

The top of the line 3Scan is a compact and narrow tower design with a side firing woofer. High frequencies are provided by the new Scan-Speak D2908/716000 TPCD Dome Tweeter. This beauty recently replaced the Beryllium equivalent in the Revelator lineup. The mids are covered by the Scan-Speak 15M/8631G00, a 5.5" midrange specific Revelator driver utilizing the revered slit cone and SD-1 motor. Providing robust low end, mounted to the lower side panel of the enclosure, is the Scan-Speak 28W/4878T-01 Revelator 11" Woofer. This woofer features a 3" diameter voice coil, SD-1 motor, and produces effortless bass at delicate through thunderous output levels. These drivers are seamlessly integrated together, resulting in a well balanced and truly world class speaker!

DIY Loudspeaker Project Pad Documentation: Part 1, Part 2, Part 3, Part 4, Part 5

Flat pack cabinets are available for purchase through Speaker Hardware.

3Scan Enclosure Plans (pdf)

3Scan Enclosure Assembly Animation (mp4)

All prices show include a 10% discount on the drivers and parts.

Each 3Scan Speaker Kit Includes:

• (2) Scan-Speak Revelator D2908/716000 TPCD Dome Tweeters
• (2) Scan-Speak 15M/8631G00 Revelator 5.5" Midrange Drivers
• (2) Scan-Speak 28W/4878T-01 Revelator 11" Woofers
• (2) Professionally Assembled Crossovers (details below)

Optional Accessories Package Includes:

• (2) Wool Felt 36" x 36" - line internal walls
• (1) Acousta-Stuff 1lb - fluff & fill midrange enclosure, loosely fill woofer area
• (16) Supra Classic 1.6 15awg ft - tinned oxygen free copper internal speaker wire
• (12) Quick Connects - connect speaker wire to drivers (2x QC205B, 2x QC205R, 4x QC250B, 4x QC250R)
• (22) OXSOCKET8x1 screws - mount tweeters and mids to cabinet
• (14) OXSOCKET10x1.25 screws - mount woofers to cabinet
• (24) OX6PAN3/4 screws - mount crossovers inside cabinet
• (1) Silver solder pc - solder wires to crossovers (mandatory), drivers & binding posts (optional)

3Scan Specifications:

• Frequency Range: F3 of 29Hz w/ tweeter measuring flat to 20kHz & out past 40kHz
• Sensitivity (2.83V / 1m): 86 dB
• Nominal Impedance: 4Ω
• Min Impedance: 3.6Ω @ 90Hz
• Max SPL: 114 dB / 1m (modeled at published woofer X-max, actual is higher)
• Recommended Amplifier: 100-500 W
• Crossover Frequencies: 220Hz / 2500Hz
• Enclosure Type: Dual port bass reflex for woofer with sealed midrange chamber
• Cabinet Dimensions: 40" tall x 8-1/2" wide x 16" deep
• View pdf cabinet plans here.

Madisound Assembled Crossovers

Each channel is assembled on three Matrix sliver tinned copper inlaid circuit boards. The extensive bracing designed into the enclosure leaves minimal surface area for the crossovers. The tweeter and midrange boards mount to the front and rear wall on the bottom of the cabinet. The woofer board mounts to the bottom of the cabinet. All three boards are then accessible through the woofer cutout hole.

Upgrade options are available from the dropdown menu.

Crossover hookup sheets and provided. They show the specific contact points to solder the input and output speaker wires to.

Tweeter Crossover

ClarityCap CSA caps and Mundorf CopperNickel resistors in series. Mundorf MOX resistor and air core inductor in parallel.

Midrange Crossover

ClarityCap CSA Cap, Mundorf CopperNickel resistor, and air core inductor in series. Poly cap and Murndorf MOX resistor in parallel.

Woofer Crossover

Sledgehammer 15awg Steel Laminate inductor and Sidewinder 16awg air core inductor in series.

Crossover Schematic

On and Off Axis Frequency Response

On Axis Frequency Response w/ Tweeter Polarity Reversed

The deep and symmetrical notch, when the tweeter is connected with inverse polarity, shows that the drivers have good phase characteristics across the crossover region

Individual Drivers Responses

Individual Drivers Responses w/ Tweeter Polarity Reversed

The deep and symmetrical notch, when the tweeter is connected with inverse polarity, shows that the drivers have good phase characteristics across the crossover region

Distortion @ 90db 1-meter

Distortion @ 95db 1-meter

Distortion @ 100db 1-meter - LOUD!!

System Impedance

Custom 3D Printed Port Chassis & Aluminum Port Tubes

Purchase from the drop down menu

Optional Port Package Includes:

• (2) Custom dual port assemblies
• (4) 2.7" ID aluminum port tubes

Original 3Scan Build by Javad

3Scan Flatpack by SpeakerHardware

Scan-Speak Revelator D2908/716000 TPCD Dome Tweeter- 8 ohm

Scan-Speak 15M/8631G00 Revelator 5.5" Midrange

Scan-Speak 28W/4878T-01 Revelator 11" Woofer- 4 ohm