[PLAN] QSC KW181 SUBWOOFER Extended LF Mod

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God Bless Everyone and happy building! Keep safe!
Make sure to check the description below.
32Hz ~ 129Hz
I modified this subwoofer box so it would go lower than the original.
The original subwoofer box plan has its frequency cut off at 37Hz which in mine I made it 32Hz much lower and usable frequency.
You can use any subwoofer with the same ts parameters with the B&C 18DS115 Low Frequency Driver.
Resonant frequency fS 30 Hz
Electrical Q QES 0.18
Mechanical Q QMS 4.75
Total Q factor QTS 0.17
Suspension equivalent air volume VAS 177 litres
DC resistance RE 3.3 Ω
Minimum impedance Zmin 4.5 Ω
Voice coil inductance LE 2.8 mH
Force factor B·l 34 T·m
Suspension mechanical resistance RMS 13.8 N·s/m
Suspension mechanical compliance CMS 85 µm/N
Moving mass MMD 318.8 g
Moving mass (including airload) MMS 348 g
Surface of the diaphragm SD 1210 cm²
Effective diaphragm diameter Ø 39.3 cm
Maximum linear excursion Xmax ± 16.5 mm
Displacement volume at Xmax VD 1996.5 cm³
Efficiency η₀ 2.3 %
Efficiency bandwidth product EBP 166

[@charliecarter5760]

Hey Mr. Flexy, do you know of any cabinet builders in the Midwest? I’d like to have a couple built. Thx

[@marcioribeiro8101]

Hi. Do you have the original plan with the amplifier?

[@gerardomartinez8433]

X2

[@PikitGamingYT]

Sir, p review nmn ung Yamaha DXS15 MKll s next video. Thanks!!!

[@maichferreira6590]

Hi Mr Flexy. Do you have a Qsc Ks112 plan?

[@michaeltjin679]

hi mr flexy, which speaker wattage u recommend for this qsc kw 181 cabinet ?

[@gerardomartinez8433]

X2

[@charliecarter5760]

What is the volume of this cab?

[@ctele00]

Any VRX918 mods?

[@martijnvandekerkhof9168]

Driver: QSC xd000005-00

[@djvictorbolado]

I can use JBL 3.0 VULCANO 18" 1500 RMS 4ohms this box?

[@DjLaGuta]

Da ist keine Originale Aufbau ! Ich habe den als Original und der Aufbau sieht ganz anders aus

[@gerardomartinez8433]

Puedes pasar las medidas originales??

[@paulojunior1129]

Consegue passar as medidas?