TPA-1000 Home Theater Speakers


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


  • 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




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


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


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


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




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



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

by Alex Flannery


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

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


Designed by Zach Strauss

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

SB Acoustics SB26STAC
Tymphany HDS-P830869

Full FR 1-48 smoothing

Zach Strauss Transducer


Parviflorus UP-906

January 13, 2015 Leave a comment

UP906 Picture

Designed by:  Chris Trevino

Design Goals:

  • Mixing Monitors for Game & FIlm SFX
  • Classic Look
  • Tight, Accurate Sound
  • Adaptable (designed around MiniDSP)
  • Medium portability
  • Budget: $1200

Key Features:

  • F3 of 43Hz
  • +-2dB from 53Hz-20Khz (after microphone adjustment)
  • 2nd Order LR Crossovers (Woofer @ 2500Hz; Tweeter @ 2000Hz)
  • Sealed Box
  • 7/8″ Cherrywood Front Baffles
  • MiniDSP Amplifier
  • Under Budget: Actual Cost $1100


  • SB Acoustics SB23NACS45-8
  • SB Acoustics SB26ADC-C000-4


Frequency Response (Unadjusted from Microphone Idiosyncrasies):

UP906 Frequency Response

Integrated Frequency Response(Unadjusted from Microphone Idiosyncrasies):


UP906 Integrated Freq Response

Impulse Response:

UP906 Impulse Response

Waterfall Plot:

UP906 Waterfall01



UP906 Research Paper

UP906 Handout

Aries I

May 6, 2014 Leave a comment

Aries I Loudspeakers

Designed By: Kevin “Hexecho” Gray

The Aries I loudspeakers were designed for use as desktop near-field monitor loudspeakers with a large soundstage and stereo image. A stand out feature of the Aries I cabinets are the high-Carbon gray Iron baffles and rear panels, this metal helps to add strength to the speakers while absorbing and dampening vibrations from the drivers, preventing the drivers from causing unsavory resonances in the wooden cabinets. The speakers are designed for an impressive transient response, and low-end extension with smaller sealed box, I wanted to make sure these speakers would give a kick drum some real kick. The speakers were intended for high-fidelity enjoyment along with music production and mixing, sporting a +/- 3 dB frequency response from 120Hz to 20 kHz with a +1 dB boost at 110 Hz.  The phenomenal off-axis frequency response of the Aries I allow it to excite a space with accurately reproduced sound, helping to add to the soundstage. Aesthetically the Aries I speakers sport an industrial style as-cast iron front and rear panels mounted into the deep-red 7 layer plywood cabinets by hex head bolts, and feature a the Aries sign on the outside of the right speaker layered in blue wood dye under the many layers of red.  After all of the metal work and parts costs the Aries I ran a budget of $800.

Design Goals:
Good low-end: F3~70Hz
Use of metal in speakers: Iron panels, aluminum woofer, titanium tweeter
+/-  3 dB frequency response
Bass boost: +1 dB at 110 Hz
Fit onto a desktop: 12″x12.5″x13″ 45 lbs
Great Transient Response
Big Soundstage

Frequency Response with Crossover  and Off-Axis Frequency Response

Full Range with crossoverhorizontal off axis

Pouring Aries I PanelPouring of an Aries I metal panel



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