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  subwoofer lies & facts

1. "Good subwoofers are expensive"
This is what Manufacturers, Traders and Magazine Folks tell. And if you believe it and have enough money you can find good subwoofers over US$ 600 up to US$ 1000 you can find deep bass quality similar to H-100 and over US$ 2500 they may be better.
2. "The horn concept is old"
Old as the bass tuba, into which the musician blows compressed air which speeds up and comes out deep and loud at the large horn opening. Old as nature like all other basic sound related physics. Nowadays some people want to overcome nature with some tricks like 10? woofers in 20 liter enclousure driven with 200 watts and hope it sounds strong and exactly as an 80 cm orchestra drum.
3. "You need horn woofers for high sound pressure only"
True, exept "only". Well constructed horns offer something extra which is more important: unbeatable precision.
4. "With high power amps and electronic control you can produce good bass with small woofers"
The product ranges of expensive brands ends with 12? or 15? woofers. They still need large diaphragm area.
5. "All subwoofers roar badly near walls and corners"
That is true for all common enclousures. Therefore small boxes look compact only before first check for the best sounding room position. You may end up at unwanted place or the sound is worse somewhere else. The H-100 is for corners only with a ground space hardly more then a square foot. From this position it produces a low distorted and fast response low bass with high efficiency.
6. "Home made subwoofers offer more value for the money"
We like engaged speaker builders. But for the price you only buy a middle class 12? woofer without enclousure.
7. "Do not mind few missing details at low frequencies"
Yes, exept you have ears for special music. At long bass noises you cannot hear differences between slow and fast response woofers. But with short , strong impulses you hear muddy sounds from most subwoofers. The large diaphragm of a 60 cm bassdrum with 3 mm extension kicks much air very fast into your stomach that a 12? in closed box would need over 15mm cone extension. The ?dying-down? delay time of such heavy cone is more then 10 times longer and can never
consequently sound original. Even worse is the delay time of the beloved bass reflex box concept. The H-100 driver is mounted into a closed part and moves the air into a pressure chamber which results into a high load resistance ? an essential condition for efficient and exactly response ? like the bass tuba musician who presses air just from his lung volume with enormous bass response. No way without the horn!
8. "Compression drivers should have lightweight 15? diaphragms and short voice coils"
Yes, if you only go for efficiency as for disco or open air PA. But such cones produce higher distortions even in sealed or reflex boxes. With the additional air load resistance of a pressure chamber there are even more cone break ups especially at the weak middle part of the cone. The H-100 driver has a lightweight non pressed air dried cone with carbon fiber and chemical hardener. 6 corrugation lines reinforce the cone center with adding very very few extra weight only. The 28 mm voice coil winding heigth is the best compromise of efficiency versus long controlled cone excursion.
9. "If you do not play loud you do not need a strong subwoofer"
Unfortunately such baby woofers do not give you good vibrations at low levels. 99% of my music times I listen at decent level and know this problem even from ? 1000 middle sized subwoofers: no very deep bass feeling ? at that price? Angrily you activate LOUDNESS or increase BASS. Now the sound is muddy with some just increased frequency ranges far from the original. Therefore high end amps do not have such controls. My H-100 needs 0.1 watts to decent loudness but with bass feeling without any bass increase. But nothing wrong in using A-4xx with complete electronic crossover and room compensation.