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Smooth Smith Audio – 312c

April 29, 2017 Leave a comment

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Designed by Eric “Smooth” Smith

Design Goals:

  • Hybrid as mixing monitors and entertainment system
  • Partially mobile/ Easy to fit in smaller spaces
  • Flat frequency response with variable low end
  • Budget: $2500

Key Features:

  • F3 of 28Hz
  • Sealed enclosure
  • +/- 1 dB from 150Hz to 20kHz
  • +/- 2 dB from 30Hz to 150Hz
  • MiniDSP active crossover @ 130 Hz, passive crossover at 3.5kHz
  • 1/2″ MDF, 1/2″ Cherry MDF

Drivers:

  • Eton 25SD-1 1″ Soft Dome Tweeter
  • Dayton Audio RS150P-4 6″ Paper Cone Woofer
  • Dayton Audio RSS315HF-4 12″ Aluminum Cone Woofer

 

Frequency Response:

 

F - 60

Integrated Frequency Response:

F IntOff-Axis Response

F - Horizontal Off-Axis

Harmonic Distortion

F - Harm Dist

Rear Sub-woofer Connection

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Transducer Speaker Project

April 28, 2017 Leave a comment

Speakers

Designed by Luke Dixon

Drivers

-2, 1″ SB Acoustic Textile Dome Tweeters

-2, 8″ SB Acoustic Paper Cone Woofers

About

-Sealed Enclosure

-2 way Active Crossover

-Hand Crafted Cabinets

-Low Frequency boost

Design Goals

-Casual speakers to use for home entertainment

Final Frequency Plot

MFinal


Speaker Glossary


Speaker Research

TUX-01

April 28, 2017 Leave a comment

Speakers 1Designed by Andrew Summers

Design Goals:

  • Create a rugged speaker system that is ready for the road
  • Flat frequency response for accurate mixing
    • +/- 3dB or better

Key Features:

  • 2.5 way hybrid crossover
    • Combination of miniDSP and passive crossover point in-between tweeter and mid-woofer
    • 2nd order crossover at 200Hz between mid- and sub-woofer (active)
    • 2nd order low pass filter on mid-woofer at 800Hz (passive)
    • 2nd order high pass filter on tweeter at 3kHz (passive)
  • F3 of 48Hz
  • +/- 2dB from 20kHz to 50Hz
  • Sealed enclosure
  • All SB Acoustics drivers
    • Sub-woofer – SB29NRX75
    • Mid-woofer – SB13PFC25-08
    • Tweeter – SB26STCN-C000-04

Construction:

  • 1/4″ birch ply on all exterior walls
  • 1/2″ birch ply on front baffle
  • 1/2″ MDF on all interior walls
  • 1/2″ birch panel in between mid-woofer and sub-woofer to create a separate sub cabinet
  • 1/4″ aluminum extrusions
  • Aluminum corner caps
  • Rust-oleum Black Truck Bed Liner finish

Tux FR

FR Full System All Axis

TUX-01 Research

TUX Speaker Glossy

8X25R

April 27, 2017 Leave a comment

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Designed By Samuel James Balk
Design Goals:
– 2.5-way design
– Active processing
– F3 of at least 50Hz
– Visually striking
Key Features:
– 2.5-way design
– +/-1.5dB from 50Hz to 30,000Hz
– Excellent Off-Axis Response
– Handmade compound front baffle constructed with layered 1.5″ MDF wrapped in carbon fiber
– Sealed enclosure
– Rear cabinet constructed with 1/2″ plywood and 1/2″ MDF sandwiching mass loaded vinyl
– 4th order asymmetrical crossover at 2200Hz
Drivers:
Fountek FW200 8″ Aluminum Woofers
Fountek NEO X 3.0 Ribbon Tweeter
Frequency Response
Full System FR
Integrated Frequency Response

Integrated.png

8X25R Research

8X25R Glossy

 

RSS-603 Reverberation Room Testing Speakers

April 29, 2016 Leave a comment

This set of speakers were designed as reference source speakers for testing in reverberation chamber. To be suitable for this condition the set of six speakers need to be able to reach a high sound pressure level with a frequency response of +/- 3dB per ANSI standards. Additionally, due the sound pressure needed at a constant duration, the drivers needed high power handling capabilities. The specific room that these will be installed do not accurately test below 400 Hz so this was taken into consideration in the design.

Tech Specs:

-F3 of 250 Hz

+/- 2.25 dB

Two way digital cross over

Mono for testing capabilities

Drivers:

Woofer: Celestion NTR06-1705B 6-1/2″

Tweeter: Tymphany D27TG35-0

Frequency Response

frqrep

Integrated Frequency Response

infreqrepSpeakerGlossy

AcattonTransducerPaper

TPA-1000 Home Theater Speakers


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Design By:

Paul Bristol

Key dseatures

  • Tall, Slender Design
  • F3 of 48Hz
  • +/- 3dB response from 100 Hz-20 kHz
  • For Use with External Sub
  • Large Stereo Image/ Wide Dispersion

Drivers

  • Woofers: Seas Prestige L16N-SL 6” Woofer
  • Tweeter: Eton 25SD-1 1” Soft Dome Tweeter

Frequency Response

Screen Shot 2015-04-30 at 9.52.37 PM

Integrated Frequency Response

Screen Shot 2015-04-30 at 9.57.46 PM

Horizontal Off Axis

Screen Shot 2015-04-30 at 10.42.38 PM

TPA-1000 Speaker Glossy

Design and Testing

TPA-1000 Final Drafting

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

Drivers

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

FR all+ drivers zoomed

 

 

The Krakens Final Report