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Archive for the ‘20-40lbs’ Category

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

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Fountek 2-Way


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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 

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Integrated Frequency Response

 

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Speaker Glossy

Research Paper 

 

 

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

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

 

2-Way Speakers w/ miniDSP


Speakers
by Alex Flannery

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Design Goals

2-way, portable size, desktop placement
Small room, near field listening (about 1m).
To be used for mostly classical music listening
Vented Box
1⁄2” Oak outside, 1⁄2” MDF inside, stained finish
Budget: $1000 —> Final Cost: $950
Technical Specifications

Size: 151⁄2”x14”x17”(lx wx h)
+/- 3dB (200-16,000 Hz) (small bass boost below 200Hz) F3 of 40 Hz
Crossover: 4th order @ 1500 Hz
Components

miniDSP Plate Amplifier PWR-ICE125
Tweeter: Seas-Prestige H1189-06 27TDFC 1”
Woofer: Dayton Audio RS225-8 8′′

Screen Shot 2015-04-28 at 5.05.10 PM

Speaker Glossy

Flannery-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

The Royals


IMG_1153

Design by:
Ben Jaszczak

Description:

The Royals are sealed, active, two way speakers intended for small room film mixing and general listening. The front and top of the speakers are made with solid  and unstained Purple Heart hardwood. The design intent for these speakers was to have relatively dry, high accuracy speakers with as far of a low end extension as possible within my budget and mobility constraints. The large sealed cabinet design serves to provide both fidelity, low end extension and clean low end transients. at ± 1dB The Royals achieve optimal frequency response when tuned for a specific room, as acoustic changes in any given room can have significant effects on the frequency response. The overall price of the two speakers was approximately $1,000.

Design:

  • Purple Heart hardwood and Baltic Birch plywood construction
  • Tang Band W6 1721 6 1/2″ paper cone woofers
  • SB Acoustic SB26STAC 1″ soft dome tweeters
  • MiniDSP PWR-ICE125 140W plate amplifier

Tech Specs:

  • Meets THX Standard 85dB with 20dB headroom
  • ± 1dB from 70Hz to 20kHz
  • F3 at 50Hz

Ben Jaszczak Crossover Graph (1)

Research & Design Paper

The Royals Glossy