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Stereo Integrity HST-18 MKiii VS Sundown ZV5 18


jnasty

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Hey guys, so it's new sub time.. I'm debating between the SI HST-18 MKiii or ZV5. I've read that SI is a sister company of sorts to sundown. Anywho, they're both rated at 2k rms but i've seen people give 3,500ish CLEAN to the ZV5 with no issues. Can the same be said about the HST? If i'm able to provide both with good power, which one should i go with? i've got 7ish cubes to play with, wont be using a port as i'll be using my 2 18" PSI high excursion passive radiators. 

Vehicle: 2002 Ford Escape

Electrical: 275A Singer, 160ah XS/Yinlong lithium, 2,000farad XS Supercaps

Head Unit: Apple iPad Hi-Res Passthrough Topping d10s

Speakers: {ACTIVE} - (4) Arc Audio RS 6.0, (2) Arc Audio RS 4.0 & (2) Arc Audio RS 1.0

Sub Stage: (2) TC Sounds LMS Ultra 5400 18" 

Amplifiers: ARC Audio - (4)4200SE(comp modded, (2)4000SE 

Processing: Helix DSP Pro W/ Dash Mounted Director 

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5 minutes ago, jnasty said:

Hey guys, so it's new sub time.. I'm debating between the SI HST-18 MKiii or ZV5. I've read that SI is a sister company of sorts to sundown. Anywho, they're both rated at 2k rms but i've seen people give 3,500ish CLEAN to the ZV5 with no issues. Can the same be said about the HST? If i'm able to provide both with good power, which one should i go with? i've got 7ish cubes to play with, wont be using a port as i'll be using my 2 18" PSI high excursion passive radiators. 

Both woofers have very good build quality, both woofers look similar but are completely different from each other.

The mk3 uses a different coil/spider & modified motor which resulted in way different t/s paremeters.

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