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Joseph Crowe

ES-600 Bi-Radial Wood Horn No.1978

Finished or Unfinished (requires sanding)
Regular price $3,290.00 USD
Regular price $1,270.00 USD Sale price $3,290.00 USD
Sale Sold out

2 total reviews

Sold as a pair in either finished or unfinished (requires sanding), select option at checkout.

Horn No.1978 represents a sweet spot in terms of size, providing extension down to 600Hz and yet still maintaining acceptably wide horizontal off-axis coverage in the upper treble. This allows the horn to be used successfully in 2-way application with low frequency drivers ranging from 8" to 15". 

Features

  • Rubber isolation feet x3 (pocketed into bottom of horn) 
  • Brushed copper circular decal logo 
  • Throat bump to eliminate small resonance near the cutoff frequency (600Hz) 
  • Built-in rear extension for optional super tweeter (top and bottom) 
  • Price is for a pair (select x1 at checkout)
  • ES (Exponential Spiral) flare geometry 
  • Wrap-around horn mouth 
  • Precision CNC cut 
  • Solid kiln dried walnut construction 
  • Sanded and finish stained with x2 coats of Rubio hardwax
  • Zero maintenance finish 
  • Repairable finish 

Purchase 3D CAD Files for (DIY only)

  • The latest 3D CAD file can be found here. (slightly older version 1965, will be updated to 1978 soon!)
  • This horn is used in our 2154, 2155, and 1815 Turn-Key Build Plans

Click on the images below to enlarge:

 

Specification 

  • Frequency Response 600Hz - 20kHz 
  • 416mm Wide x 203mm High x 198mm Deep 
  • Standard mounting for 1.40" compression driver 
  • Can be adapted down to 1.00" using an adapter (special request)

Frequency Response 

The frequency response shown above is with the RCF ND-940 compression driver without the optional wood rear cover. 

Horizontal Off-Axis Colored Polar Map 

 

Below is an example list of suitable drivers. Any driver with a 1.40" throat and 101mm bolt spacing will physically fit. 

  • RCF ND650, ND850, ND950
  • Radian 745DPB, 745PB, or 745Neo
  • TAD TD-4003
  • B£C DE780TN 

    Suitable drivers 1.0" throat (Using optional adapter) 

    • TAD TD-2001
    • Older Pioneer and Altec drivers 
    • Coral M100 
    • B&C DE250
    • RCF ND350 

    Shipping 

    All horns are shipped in 3/8" plywood crates fully lined with foam padding.