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Did some testing with my new HDC418(149db+)


EDH

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Hello all.

First off i want to say that im very impressed by this sub.

I previously owned a HDC3-18 that i was very happy with at the time, I competed at local events and the sub preformed great.

With the HDC3 my personal best score was 147,3db using a 43hz tone. My best score on music was 145,4db.

Right of the bat i could tell the HDC4 was a different monster, to my surprise the bass was SO much louder and tighter.

The box for the HDC4 is about 6 cu ft big with 117sq inch of port, tuned to 39-40hz.

The car is a Saab 9-3 -99 Monte Carlo Edition, butyl mat is applied throughout the car in several layers.

Well , onto some testing....

All scores are Sealed on the dash, on music. The song i used was "Resonance Evil" by Bassotronics.

The mic is in DbDrag position, set to peak hold.

The amplifier used is a B2 Audio Mono @0,5ohm

First score is with the back seat up.

V5dbdF2.jpg

Second score is with the back seat down.

WDXQALW.jpg

Current setup

DD Z318 Extra Stiff, Kevlar cone, Double top plate x2

Banda Viking 10k x2

5 Banks of Maxwell 2.85v 3400F caps

Build log Termpro Profile

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