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Archive for the ‘Bass Reflex’ Category

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

Not Your Grandpa’s Speakers


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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.

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

Frequency Response
F-FQ
Integrated Frequency Response
F-IFQ
Not Your Grandpa’s Speakers Glossy
Not Your Grandpa’s Speakers Research Paper

TW-84 Home Entertainment Speakers

April 29, 2016 Leave a comment

TW-84 Pic

Design Goals

  • Pleasurable
  • Fairly Flat Frequency Response
  • Passive Crossover
  • Ported Enclosure For Increased Low End
  • Pair With External Subwoofer
  • Sound Good Alone As Well

Key Features 

  • WxDxH = 1′ x 1′ 3/8″ x 3′ 9 1/2″
  • +/- 2dB from 40-20,000Hz
  • 2 Way Design
  • F3 of 37 Hz

Drivers

  • Scanspeak D2604/32000
  • Dayton Audio RS225

 

Frequency Response

Frequency

Documentation: 

Design & Final Testing Report

Glossy

DG01 Near-Field Multipurpose Monitors

April 29, 2016 Leave a comment

DG01 Wireframe

DG01 NEAR-FIELD MONITORS
The DG01 speakers are multipurpose mixing and listening speakers designed for near-field use. Despite their size, these desktop speakers were made to be listened to from a distance of only about a foot away.
To achieve the low end necessary for critical listening, the DG01s are designed as a ported box with a 2” port on the rear side. While this causes some loss of transient accuracy, it is more than made up for by the low-frequency extension. These speakers manage to reach an F3 of 38Hz while also boasting a +/- 3dB range from ~40Hz-19kHz. The range is possible due to the excellent drivers selected for the job—Dayton Audio RS225-8 for the woofers and SB Acoustics SB26STAC-C000-4 for the tweeters. With the use of a MiniDSP PWR-ICE125 amplifier and DSP unit for each monitor, a fairly flat response is easily achieved. With the design comes a very strong center image and a large sound stage.

QUICK FACTS:
Crossover: 4th-order, woofer at 2.2kHz, tweeter at 2kHz
Response: +/-3dB ~40Hz-19kHz
F3: 38Hz
Total cost (w/o MiniDSP): ~$400
Box materials: 1/2” MDF with 3/4” birch plywood
Size: 19”Hx15”Wx18”D
Tweeter: SB Acoustics SB26STAC-C000-4
Woofer: Dayton Audio RS225-8

DG01 Frequency Response

DG01 Speaker Glossy

DG01 Speaker Research & Design

Subfusc


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Goals:

  • Low frequency extension, down to 40Hz
  • Flat frequency response.
  • Budget of around $1000
  • Portability

Features:

  • 2-way system.
  • MiniDSP Active Crossovers
  • Vented cabinet for low frequency extension.
  • Flat response curve
  • +/1.25 from 100Hz to 15kHz
  • F3 at 36Hz

Cabinet:

  • 1/2” 9-ply baltic birch exterior
  • 1/2″ MDF interior.
  • 1” Acrylic around woofers
  • Black Plastidip coating
  • 1.4 cubic feet interior

Drivers:

  • Dayton Audio RS225-8 8” Reference Woofer
  • SB Acoustics SB29-RDC-C000-4 1” Ring Dome Tweeter

Full

 

Impulse

Subfusc Design Process, Construction, and Documentation

Subfusc Speaker Glossy

 

AugustineSound JA8 2-way Studio Monitors


My speakers

 Design Goals/Features:

Build 2-way ported speakers to be used for critical listening.

3/4 inch thick 13 layer plywood exterior

3/4 inch thick maple baffle

1/2 inch thick MDF interior

8 inch woofer

1 inch dome tweeter

 

Specifications:

Dimensions: 20″ H by 12″ W by 15″ D

+/- 2db Frequency response from 50hz-10khz

F3 of 40hz

4th order crossover at 1.2khz

 

Frequency Response:

Joe Left

 

 

Speaker Glossy

 

Augustine Research and Design Paper

 

Shapeshifter Everyday Speaker

April 26, 2015 Leave a comment

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Designed by Zach Strauss

Goals:
Low bass extension
Flat frequency response for mixing
Many I/O options

Drivers:
SB Acoustics SB26STAC
Tymphany HDS-P830869

Full FR 1-48 smoothing

Zach Strauss Transducer

Glossy