Posts Tagged ‘ribbon tweeter’

Not Your Grandpa’s Speakers


Designed by: Mike Schmitz

Design Goals

  • Casual listening
  • Large and noticeable
  •  Unique aesthetics
  • Passive

Key Features

  • F3 of 26 Hz
  • +/- 6 dB 26 Hz to 18 kHz
  • 2nd Order Crossover at 250 Hz, 4th Order Crossover at 2.5 kHz
  • Wide Dispersion
  • Cost less than $1200
  • Ported design
  • 3/4 in. MDF and 1/2 in. Baltic Burch construction with Maple trim.

Tweeter – Fountek Neo X 2.0 Ribbon
Midrange – SB Acoustics SB15MFC30-4
Woofer – SB Acoustics SB29NRX75-6

Frequency Response
Integrated Frequency Response
Not Your Grandpa’s Speakers Glossy
Not Your Grandpa’s Speakers Research Paper


The Krakens – 3-Way Sealed System

Designed by Renata PutzigIMG_4603

Design Goals

  • Large Soundfield
  • Low fatigue
  • Accurate transients
  • For casual listening and movies
  • Aesthetically pleasing

Key Features

  • +/-2 dB from 70Hz to 20 kHz
  • F3 of 50Hz
  • Solid cherry
  • Sealed box
  • Ribbon tweeter
  • 14 3/4″ x 24 3/4″ x 21 3/4″
  • Cost: ~$1000


  • SB Acoustics SB23NRXS45 8″
  • Seas Prestige MCA12RC H1304 4.5″
  • Fountek NeoX 2.0 Ribbon Tweeter

FR all+ drivers zoomed



The Krakens Final Report


April 27, 2012 Leave a comment

Over View

These speakers are designed for film and for fun! Keeping aesthetics as the main design goal, their main purpose is for cinema and for the ocasional house party. This led to important design goals that I wanted to keep different then any previous students. This included an acrylic baffle, a visible crossover so that you can see the inner workings of the speaker, and to top it off, LEDs to give it a little more sparkle. The acoustical properties that were my main goals were to have the capability of a wide dynamic range and an extended frequency range through the use of a transmission line.


– 3 Way

– Passive Cross over

– 13 Foot Transmission Line

– Acrylic Baffles

– Interior LEDs


– 5′ 4″

– 2′ x 2′ Base

– 350 lb Each

– 3/4″ MDF interior

– 3/4″ Red Oak Exterior


– Tang Band RT-1516SA Ribbon Tweeters

– 3″ Tang Band 75-1558SE Dome Drivers’

– 12″ TC Sound Epics


~ $3500


Final report

Final Measurements

Speaker Glossy

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Testing Results

Frequency Response

Horizontal Off Axis

Vertical Off Axis

Left/Right Difference


Frequency responce

Horizontal off axis

Vertical off axis

Impulse Response



Frequency Response

Horizontal Off Axis

Vertical off axis

Impulse Respose



Frequency Response