Halcyon ~ Markaudio + SB Acoustics Full Range with Bass Assist Tower - Pair

Halcyon ~ Markaudio + SB Acoustics Full Range with Bass Assist Tower - Pair
Click to enlarge
Sale Price: $569.00
Compared at: $633.00
You Save: $64.00


Manufacturer: Markaudio
Product ID : Halcyon
Weight: 30.00 lbs
Manufacturer: Markaudio
E-mail to a friend


Halcyon - Markaudio + SB Acoustics Full Range w/ Bass Assist Tower - Pair

The Halcyon is a very unique 2-way/3-driver design featuring the Markaudio Alpair 10P 6" paper cone full range & two SB Acoustics SB17NRXC35-8 6.5" paper cone woofers. The Alpair 10P is housed in a semi open back cylindrical enclosure, while the SB17's perform in individual transmission lines that are merged at the port in a mass loaded configuration.

We are really excited about this project, & want to thank Curt Campbell for his design work and never ending contributions to the DIY speaker building community. 

  • 2-Way - Full Range + Dual Woofer Floor Standing Tower
  • 38.25" tall x 9" wide x 22.5" deep
  • Sensitivity: 88 db
  • Impedance: 4 ohm
  • Frequency Response: 40 Hz (-3db) to 25 kHz
  • Crossover Frequency: 1st Order Series @ 400 Hz

Full documentation on this design can be found @ Curt's website - Speaker Design Works

Each Halcyon Kit Includes:

  • (2) Markaudio Alpair 10P 6" Paper Cone Full Range Drivers
  • (4) SB Acoustics SB17NRXC35-8 6.5" Paper Cone Woofers
  • (2) Professionally Assembled Crossovers (details below)

Optional Accessories Package Includes:

  • (2) PSP-OFN - 2" Outside Flared Port 
  • (18ft) Supra Classic 2.5 - 13 awg tinned oxygen free copper internal speaker wire
  • (3lb) Acousta-Stuff - fluff & fill transmission line (leave area around port empty)
  • (1) Foam Sheet - cut & line tube and rear chamber
  • (4) QC110B Quick Connects - for - woofer tabs
  • (4) QC205R - for +woofer tabs
  • (2) QC250B - for - full range tabs
  • (2) QC250R - for + full range tabs
  • (16) OXSOCKET8X1 - mount woofers to baffle (10P drivers already incl. socket screws)
  • (8) OXSOCKET6X3/4 - mount port to cabinet 
  • (16) OX6PAN3/4 - mount crossover inside base
  • (1pc) Kester silver solder - solder wires to crossovers (mandatory), drivers & input cup (optional)
Discounted Binding Posts/Input Cups are also available with from the drop down menu.

Assembled Crossovers

Each crossover is professionally assembled on a Matrix Double silver plated copper circuit board. Kester silver solder is used to terminate all the parts. Being a series crossover, parts selection throughout the build is critical. The standard version of the crossover uses a Solen FastCap 150 mfd, ClarityCap PX 10 mfd, and Sledgehammer Steel Laminate 2.0 mH inductor. Basic sandcast wirewound resistors are used over metal oxide film type after extensive listening tests during the speakers development. Upgrade options from the drop down menus include higher end caps & Mundorf MResist Supreme sandcast wirewound resistors. A budget capacitor version is also available.

Alpair 10P Full Range Driver

SB17NRXC35-8-UC Woofer

Images of Completed Kit

Comment on Facebook

Product Reviews

Login or Register to write the first review.