2.1 Soundbar with B3N, Airborne UR151B4 6" sub, and amp/crossover!

[eusubius]

Designing a soundbar!

Using B3N woofers, based on Zaph's design:
http://zaphaudio.com/audio-speaker18.html

Posting this in Subs...as the soundbar will mainly be on the sides of the enclosure. Wondering if I can find a way to put a TH in here for the sub!

Since sub will be in close proximity, will likely cross over at 150 hz. That may be the upper limit of the BT 2.1 Amp I'm planning to use:
https://www.amazon.ca/Fosi-Audio-Amplifier-Integrated-Speakers/dp/B0C9WV3XXS/ref=sr_1_3?keywords=2.1+bluetooth+amp&psr=EY17&s=black-friday&sr=1-3&ufe=app_do:amzn1.fos.71722c10-739d-471b-befb-3e4b9bf7d0d6
(I can' t find the hipass spec now... but I don't think it went up to 200hz)

and the sub!
https://solen.ca/en/products/airborne-ur151b4-lj14m-15cm-aluminum-cone-shallow-subwoofer

Thankfully the 2.1 amp will give control over the bass, so I'll have tons of low end headroom.

I'm entering specs into Hornresp - but I have questions:
Is Mmd same as Mms? Is the CM correct? .83 mm/N on specsheet, but 8.30E-01 in Hornresp.


Designing a soundbar!

Using B3N woofers, based on Zaph's design:
http://zaphaudio.com/audio-speaker18.html

Posting this in Subs...as the soundbar will mainly be on the sides of the enclosure. Wondering if I can find a way to put a TH in here for the sub!

Since sub will be in close proximity, will likely cross over at 150 hz. That may be the upper limit of the BT 2.1 Amp I'm planning to use:
https://www.amazon.ca/Fosi-Audio-Amplifier-Integrated-Speakers/dp/B0C9WV3XXS/ref=sr_1_3?keywords=2.1+bluetooth+amp&psr=EY17&s=black-friday&sr=1-3&ufe=app_do:amzn1.fos.71722c10-739d-471b-befb-3e4b9bf7d0d6
(I can' t find the hipass spec now... but I don't think it went up to 200hz)

and the sub!
https://solen.ca/en/products/airborne-ur151b4-lj14m-15cm-aluminum-cone-shallow-subwoofer

Thankfully the 2.1 amp will give control over the bass, so I'll have tons of low end headroom.

I'm entering specs into Hornresp - but I have questions:
Is Mmd same as Mms? Is the CM correct? .83 mm/N on specsheet, but 8.30E-01 in Hornresp.

 

[eusubius]

Just realized I have no idea how to configure HR for a TH. I'm imagining a soundbar with a wrap around chamber... like a C shape - one end has driver, other end has port... ends up facing near the driver?

Something doesn't look right in HR for driver specs... says Fs is 1.94 hz !!! I don't see a spot to input Fs of the driver! Can someone take a look above at my screenshot and tell me what I did wrong?

HR export is attached too.
Thanks!

 

[GM]

Tools/Loudspeaker, scroll down for the various TH options

Double click on the 'Sd' field for the T/S specs pop-up window

Corrected specs to 'Import'/load

 

[GM]

Since sub will be in close proximity, will likely cross over at 150 hz.
https://solen.ca/en/products/airborne-ur151b4-lj14m-15cm-aluminum-cone-shallow-subwoofer

I'm entering specs into Hornresp - but I have questions:
Is Mmd same as Mms?

No; re specs in general, best to just load T/S and let HR auto calc the rest

T/S Explained: https://audiojudgement.com/thiele-small-parameters-explained/

T/S Equations and how each one affects the others: https://audiojudgement.com/thiele-s...ydc8i*_ga*MTU0NDc0NTAyLjE2ODY3OTc2NTI.*_up*MQ

 

[GM]

Re driver's box loading HF BW; it peters out at its upper mass corner (Fhm) = 2*Fs/Qts'

(Qts'): (Qts) + any added series resistance (Rs): http://www.mh-audio.nl/Calculators/newqts.html

 

[David McBean]

Is Mmd same as Mms? Is the CM correct? .83 mm/N on specsheet, but 8.30E-01 in Hornresp

Mmd = Mms (total moving mass) - air load

0.83 mm/N = 8.30E-01 mm/N = 8.30E-04 m/N

 

[GM]

Basic ~33 - 175 Hz DTS TH

 

[eusubius]

I like it GM. very narrow, so maybe I can fit that in a soundbar. My time is limited lately, but I'll have to calculate and sketch that out.

Driver may have to go on a baffle diagonally.