Taken from other diyfest/comp held in USA as an idea of how it could be done.....
Speaker project must use all Dayton Audio drivers in the project design. Any dollar amount or size is welcome.
OPEN DRIVERS UNDER $200 (ANY BRAND, ANY TYPE, NO RESTRICTIONS)
Projects less than $200 per pair to build ($ limit for drivers only). Speaker project can include any brand drivers.
OPEN DRIVERS OVER $200 (ANY BRAND, ANY TYPE, NO RESTRICTIONS)
Projects greater than $200 per pair to build ($ limit for drivers only). Speaker project can include any brand drivers.
Open Unlimited includes speaker projects that are active or cannot be categorized in the other 3 categories.
If the speaker design has been entered in the Open Unlimited category, the same design without active components cannot be entered into any other category.
*There will be 3 winners from each category
MUSIC SELECTIONS TO BE USED IN JUDGING
Burning Down The House
Zanzibar (album version)
North Mississippi Allstars
Granny Does Your Dog Bite
Come Away With Me
Walking In Memphis (digital version)
Resphigi Pines of Rome
Near A Catacomb
So Far Away (album version)
The judges will use the following criteria to determine the winners of the Speaker Design Competition:
Originality / Design (visual)
Tonal Balance (audio)
The speakers under test are driven with a music signal fed from a CD player to an Emotiva Stealth DC-1 preamplifier, with no upstream signal processing, crossovers, or equalization. The Emotiva DC-1's internal DAC and digital-domain volume control are used. The Emotiva DC-1's balanced line outputs feed a stereo Emotiva amplifier to power the entries. Designs featuring additional channels of amplification, active crossovers, equalization, or other processing (including DSP) are restricted to our Open Unlimited category. For systems in the Open Unlimited category, the available outputs from the source are balanced (XLR)/unbalanced analog (RCA), and optical Toslink.
There will be 3 one-minute snippets of music listened to by the judges. These music selections are played per entry, each one minute in length, and these selections are the same for all speakers in a category, but different sets of tracks are selected for each category, with the selections for the categories having higher priced and more complex speakers being more challenging and possibly revealing of sonic flaws. Before each speaker plays, the level is set using pink noise, with SPL monitored via our calibrated Dayton Audio OmniMic V2 system, so that all speakers play at the same level.
Each speaker will be evaluated and rated by the judges, then tabulated and results entered into a spreadsheet. These results will be combined with the audience submission votes to declare winners in the aforementioned categories.
Judging sheets will be sent by mail to the designer's home address following the event. In the event of a tie within a class, the judges will select the ultimate winner.
Commercial entries or entities are prohibited: Individuals or entities that sell finished speakers (part time, full time, or any time) are excluded from registration. Should it be determined that you are in the commercial sales of finished speakers your entry will be removed. Please contact us should you require further explanation or clarification.
Contest committee members will have final say whether a project is excluded or not from competition.