Speaker System No.3154 --- 10" 2-way Back Loaded Horn

Speaker System No.3154 is a 10" 2-way Back Loaded Horn Speaker designed for maximum sensitivity in a reasonable form factor. Providing effortless dynamics, palpable and nuanced bass that will truly activate the air in your listening space. With a full 102 dB of bass output from a single watt of power, you can be guaranteed maximum performance from your low power amplifier.

Sound Character 

• Extremely dynamic bass extending to 30Hz (see plot) 
• Palpable and nuanced bass 
• Smooth sound character (no harshness, optimized for long listening) 
• Great low level detail retrieval even at low listening levels 
• Spacious soundstage 

Applications

• Small, medium, and large listening spaces 
• Low power tube amplification or high power solid state

Features

• 10" Back Loaded Horn 
• Bass Extension to 25Hz (in-room F10) (see graph below)
• 102dB Sensitivity (measured at 70Hz in-room, 2.83v, 1m)
  • For comparison the Markaudio CHR120 (6.5" full-range) in 1cu. ft. bass reflex cabinet --- 75.5dB Sensitivity (measured at 70Hz in-room, 2.83v, 1m)
• 8ohm nominal impedance
• 2-way 
• 700Hz Crossover Point 
• 1" Compression Driver, Custom Made 
• Dipole hypercardioid radiation (compression driver radiates out back, -9dB compared to front)

• 700Hz 1" Biradial Wood Horn (Solid Walnut or Concrete)
• 10" Woofer custom made in France
• Cabinet constructed from 18mm thick baltic birch plywood 
• Finished in satin black paint 
• Outriggers with ISO Acoustics Gaia lll feet (Walnue or Concrete)
• Custom rear decal hand signed by Troy J. Crowe
• Custom decal options include "Made for (your name here)"
• Point to point wiring, Mundorf EVO Oil capacitors, 14 Gauge air core inductors 
• WBT Binding Posts 
• Silver coated internal wire 

Bass Extension 

Bass extension is characterized as flat to 40Hz using a -3dB downpoint (F3) with 25Hz being -10dB Down (F10). The response graph below is the REW in-room response with the speakers placed 1m from the front wall and 2m from the side wall. Mic distance is 2m. 

Physical Measurements