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


The Royals


Design by:
Ben Jaszczak


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.


  • 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

Timber Nooks

May 2, 2014 Leave a comment

Timber Nooks


Design and Construction by

Matthew Nanney

Design Goals

  • Portable
  • Accurate Response
  • Nearfield Mixing Monitors
  • THX Standard SPL Levels
  • Good Horizontal Off-Axis Response

Key Features

  • +/- 1dB from 70Hz to 20kHz
  • F3 of 60Hz
  • Mini-DSP Plate Amplifier
  • Side-Ported
  • Walnut Enclosure
  • Medium Size (WxDxH) = 9.5″ x 1′ 5″ x 1′ 6″
  • Cost under $800


  • SB Acoustics SB26STAC-C000-4 1″ Tweeter
  • SB Acoustics SB17MFC35-8 6″ Woofer

Testing Results:

Integrated Frequency Response


Integrated Frequency Response - Plot 2 (averaged)

Impulse Response

Overall Impulse Response - Plot 10

Waterfall Plot

Waterfall Plot - plot 11 (Camera 1)



Final Design Report and Testing Results

Speaker Glossy


MP2 Active Monitoring System


Designed and Constructed by:

Mason Pew – Spring 2014

Design Goals:

  • Accurate low frequency extension
  • Mixing monitors (Near/Mid Field)
  • Side ported to increase envelopment
  • Portable
  • Low fatigue
  • Sharp, professional appearance

Specifications & Features:

  •  +/- 1.8 dB (40  – 18,000 Hz)
  • F3 of 40 Hz
  • 14″ x 12″ x 16″ (LxWxH)
  • miniDSP Plate Amplifier
  • Partitioned cabinet to house amplifier


  • Woofer: Dayton Audio RS225-8 8″
  • Tweeter: Vifa D27TG35-06 1″ Silk Dome

Integrated Frequency Response:

2) FullRange_0

Impulse Response:

10) Impulse Response

Design Process & Documentation

Speaker Glossy

The Dark Passengers – 2 Way Ported Nearfields

The Dark Passengers - Near Field Mixing Monitors

Designed and constructed by Andrew Villa

Design Goals

  • Portable
  • Accurate Response
  • Hi-Fidelity for creating/mixing SFX, Dialogue, and music
  • Tight transients
  • Good horizontal Off-axis
  • Dexter Themed
  • Used as Nearfield monitors

Key Features

  • Small size: 12 1/4″ x 10 1/4″ x 16 1/4″
  • +/- 1.6 dB from 80 – 20 kHz
  • Vented Enclosure = decent bass for small near fields
  • Cost $400
  • F3 of 72 Hz
  • Tight, precise sound
  • Great Clarity
  • Unique paint design


  • Fountek FW168 6.5″ Aluminum Cone Woofer
  • Vifa XT25TG30-04 1″ Ring Radiator Tweeter

Testing Results 

Overall Frequency Response:

Plot 1 - Overall Frequency Response


Integrated Frequency Response:

Plot 2- Integrated Frequency Response

Purple: Tweeter, Yellow: Woofer, Blue: Overall Sum


Impulse response:


Plot 10- Impulse Response


The Dark Passengers: design, drafting, and final testing

The Dark Passengers: Glossy

JMWS-1 Nearfield Mixing Monitors

May 2, 2014 Leave a comment


Designed By:

John Watza

Key Features

  • Desktop Nearfield Mixing Monitors
  • F3 of 55Hz
  • +/- 1.5dB
  • Mini DSP Plate Amplifier
  • Accurate Transient response

Frequency Response

Right Speaker Plot 1

Intergrated Frequency Response

Right Speaker Plot 2


JWatza Speaker Glossy

JMWS-1 Documentation and Design



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