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Archive for the ‘2-way’ Category

JJM-001 Home Theatre Loudspeakers


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Designed, Constructed, and Tuned by Jonah Mueller

Design Goals:

  • Floor-standing for Home Theatre
  • Full Range 2.0 System
  • Flat Frequency Response
  • Pleasing Sound & Looks

Key Features:

  • Vented Cabinet Design
  • +/- 2dB Frequency Response
  • F3 of 19.5Hz when placed near wall (45Hz free air)
  • <1% Harmonic Distortion
  • Smooth Off-Axis Roll-Off

Drivers:

  • SB Acoustics SB26STAC-C000-4 1″ Textile Dome Tweeter
  • Dayton Audio RS225-8 8″ Aluminum Cone Woofer

Frequency Response (Integrated):Integrated Frequency Response.png

Off-Axis Response:

Off-Axis Response.png

Harmonic Distortion:

Harmonic Distortion.png

Speaker Glossy

Research Paper

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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

NC-17 Reference Monitors

April 28, 2017 Leave a comment

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Designed by Nick Cecconi

Design Goals:

  • Mixing monitors for home
  • Inspired by C-17 airplane
  • Flat frequency response
  • Budget: $1000

Key Features:

  • F3 of 56 Hz
  • Vented enclosure
  • Battleship gray finish
  • Dimensions: 12” x 15” x 17”
  • +/- 1 dB from 56 Hz to 18 kHz
  • MiniDSP 2-way crossover @ 1.8 kHz
  • 1/2″ Maple w/veneer core, 1/2″ MDF

Drivers:

  • SB Acoustics SB26STAC 1″ Textile Dome Tweeter
  • SB Acoustics SB23NACS 8″ Aluminum Cone Woofer

Frequency Response:

LeftTuned_v2-1

Integrated Frequency Response:

Integrated Frequency Response.png

NC-17 Research Paper

NC-17 Speaker Glossy

http://www.nickcecconi.com

Sandcastle 7.2


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Designed by: Eric Bartos

Goals

  • 7.2 surround sound system for enjoyment and the occasional mix
  • +/- 4dB response
  • active crossover

Key Features

  • F3 of 38Hz on surround speakers (before crossover between subwoofer)
  • F3 of 34Hz on center speaker (before crossover between subwoofer)
  • F3 of 24Hz on subwoofers
  • +/- 4dB from 50Hz to 21kHz on surround speakers
  • +/- 4dB from 47Hz to 21kHz on center speaker
  • +/- 2dB from 25Hz to 200Hz on subwoofer
  • center speaker has active/passive crossover system
  • 1/2″ birch ply and 1/2″ MDF construction for center speaker and surround speakers
  • 1/2″ birch ply and 3/4″ MDF construction for subwoofers
  • BSS Blu-100 & BSS Blu-BoB for DSP

Drivers

  • Woofer: Dayton Audio RS225-8
  • Tweeter: Seas Prestige 19TFF1
  • Midrange (Center speaker only): Dayton Audio RS52AN-8
  • Subwoofer: Eminence LAB12-C

Frequency Response

Surround speakers

Surround Overall 60db range

Surround Integrated Response

surround integrated 40

Center Speaker

center response 60.png

Center Integrated Response

center integrated 40

Subwoofer

sub response 60

Sandcastle glossy

Sandcastle Research Paper

Sandcastle Final Testing

The Jazzutes

May 2, 2016 Leave a comment

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(Badazz & Jazzhole)

Designed by:  Victoria Stack

Design Goals:

  • Mixing monitors for home studio
  • Medium size for portability
  • Accurate reproduction of sound
  • Flat frequency response
  • Budget: $800-$900

Key Features:

  • F3 of 54 Hz
  • Dimensions: 14 ½” x 16 ½” x 18 ½”
  • MiniDSP  Active Crossover
  • +/- 1.5 dB from 54 Hz to 15 kHz
  • 3rd Order Crossover at 2 kHz
  • 3/4″ MDF Baffle
  • Visual Aesthetics

Drivers:

  • Dayton Audio RS225-8 8″ Reference Woofer
  • Tymphany XT25TG30-04 1″ Dual Ring Radiator Tweeter

Frequency Response:

Frequency Response

Integrated Frequency Response:

Integrated Frequency Response

Speaker Glossy

Research Paper

Fountek 2-Way


Screen Shot 2016-05-01 at 10.57.31 AM

Designed by: Jamie Bennett

Design Goals:

  • Portable
  • Sonically Robust
  • Accurate
  • Aesthetically Pleasing
  • Active Crossover
  • Ported

Key Features:

  • F3 of 60 Hz
  • +/- 3 dB from 60 Hz to 20 kHz
  • 4th Order Crossover at 2.3 kHz
  • Wide Horizontal Dispersion
  • Under $1000
  • 3/4″ Maple Baffle
  • 3/4″ Double Walled MDF

Drivers:

  • Tweeter:
    Fountek Neo X 2.0 Ribbon
  • Woofer:
    Fountek Fw168 6.5″

Frequency Response 

Screen Shot 2016-05-01 at 10.29.39 AM.png

Integrated Frequency Response

 

Screen Shot 2016-05-01 at 10.29.01 AM.png

Speaker Glossy

Research Paper 

 

 

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