Announcing the 2015 Burning Amp International Loudspeaker Crossover Design Contest!
Your goal is to design a passive or active crossover for a 2-way mini-monitor using any freeware design software. The winning design will be awarded the drivers and cabinet for the project - design the best crossover and win the parts to build the system!
Even if you don't plan to attend Burning Amp this year you can still enter to win. Just pair up with someone who will attend Burning Amp and submit an entry as a team! You can prove yourself as a crossover WORLD CHAMPION designer!
The deadline for submission of entries is 9pm Pacific Time on Oct 9, 2015.
To download a complete set of measurements and see a list of contest rules please visit:
2015 Burning Amp crossover design contest!
Your goal is to design a passive or active crossover for a 2-way mini-monitor using any freeware design software. The winning design will be awarded the drivers and cabinet for the project - design the best crossover and win the parts to build the system!
Even if you don't plan to attend Burning Amp this year you can still enter to win. Just pair up with someone who will attend Burning Amp and submit an entry as a team! You can prove yourself as a crossover WORLD CHAMPION designer!
The deadline for submission of entries is 9pm Pacific Time on Oct 9, 2015.
To download a complete set of measurements and see a list of contest rules please visit:
2015 Burning Amp crossover design contest!
.
Hi Charlie,
so, if I understood correctly, I can submit an entry with
my internet pseudonym, my e-mail address and appoint
one person (real name) to collect the prizes at the BA
festival in case we win as a team?
so, if I understood correctly, I can submit an entry with
my internet pseudonym, my e-mail address and appoint
one person (real name) to collect the prizes at the BA
festival in case we win as a team?
Yes you are correct. The team concept allows more people to join in on the fun! As long as someone from the "team" can physically attend Burning Amp and collect the prizes, anyone anywhere in the world can submit an entry as part of a team.
Of course if you can attend Burning Amp personally and want to submit your own entry, that is also totally fine. It is not necessary to form a team in order to enter the design contest.
Rules Clarification
Below is a clarification of the contest rules:
Below is a clarification of the contest rules:
- There is NO REQUIREMENT to be present at Burning Amp. You can still submit an entry (and win or place) if you don't attend.
- You can NOT collect the prizes if you or someone from your team does not attend Burning Amp.
Could I negotiate someone sends me the cabinets and pays
the postage and he/they keep the drivers as compensation
for the trouble?
the postage and he/they keep the drivers as compensation
for the trouble?
Since this is the first year for this contest, and since it was just thrown together in the last few days, we are figuring out some of the details as we go along. I don't expect that details about the judging criteria will be posted. But generally you want to aim for a flat on-axis response with good phase alignment at the crossover point. Additional info about the off-axis response of the drivers, and their distortion profiles, has been provided to help guide the designer.
I do not plan to participate in the contest, but I noticed that XSim does not accept the provided zma files (error message). Attached is a corrected version of both files that should load easily.
Good luck to all the contributors.🙂
Good luck to all the contributors.🙂
Thanks for posting this. I compared the two files in my favorite editor (PSpad) and the only difference is at the end of the file. The ZMA file I supplied has two entries for 20kHz. In your file these have been removed. Otherwise they are identical.
I will let others know that they can just delete one or both 20kHz entries to fix the problem.
I have updated the ZMA files on the web to remove the duplicate 20kHz entry and made a note in the ReadMe.txt file.
I found another error in the woofer impedance file - some "negative" signs somehow became separated from their numbers, e.g. "- 1.2345" instead of "-1.2345". This happened for the data between about 70Hz and 210Hz in the woofer file only.
I posted another updated data set, with "update-2" as part of the file name. Please let me know if there are any further import problems.
I posted another updated data set, with "update-2" as part of the file name. Please let me know if there are any further import problems.
Would an elegant passive design beat a complicated active design if they both achieve similar goals? Will passive XO parts also be provided to the winning entry or just drivers and box?
in the interest of not having the thread go off track I have deleted some of the posts.The crossovers are simply judged on what they achieve in terms of the loudspeaker. There is no rule limiting the complexity or cost of the design. I believe the only limitation is that FIR filters are not allowed for DSP crossovers.
The prizes are clearly stated in the contest web page and don't include any crossover parts. There is no way to know at this time if the winning entry will be a passive crossover.
I'd like to take a stab at it, just for fun. I know it is possible to get the time off-set between the drivers based on the unfiltered combined response you included, but it's a hassle and not the most accurate. I assume you performed 2-channel measurements? Would you please post the PIR files?
Only the crossover and ID of the winner and runner up will be made public at the end of the competition.
PID files are not available. I didn't save them.
I use the interference method all the time to determine offset and it is not only quick and easy but very accurate as well.
Since IIR digital filters, analog active filters, and passive filters are the most alike in how they change the signal to the drivers the competition has been limited to these types. FIR filters are a bit of a different beast altogether.
- Status
- Not open for further replies.