Search results

OK, I'm a newbie so go easy. Planning my DIY sub, I find that below about 19 Hz the driver goes into excursion overdrive. Hence as is commonly recommended a HP filter at just above this point is a good idea. Can someone tell me if at a 4 ohm sub impedance and wanting a crossover at 20 Hz, why...

Gee I absolutely love this thread (haven't read it all). It should be specially archived. Please excuse my comments if they've been mentioned before. I'm a newbie, so if I'm wrong please educate me. If everything is "equalised" b/w the two competing amps, isn't the signal (voltage -...

Thanks Jonathan. Yes well the strange (maybe) thing is that everything appears to work well, including the sub. I can actually just measure the voltage from the sub cable alone (i.e. not plugged into the sub input). I first picked up on this from using the level and crossover knobs on the...

Hi People, I have noticed that I can feel a small tingle from the sub cable when the amp is in standby mode. I measured this with a multimeter (may not be true RMS), and it was 5V AC. I have a Sherwood 6106. I take it that this is not normal. The amp appears to work well in every respect...

Hello People, well seeing as you're the experts. ;) I want to embark on the wonderful world of DIY subs, and have come across these two drives (specs below) and don't understand why the supposedly "cheaper" driver seems to model "better". Or is it that I don't know how to read the stats (most...

Thanks for the responses guys. Isaac, so essentially you're indicating that it should work reasonably well (for the price). I have modelled in WINISD with a 105L enclosure tuned to 23.5Hz, with 2 x 82mm vents (485mm long) giving -3db @ 23.0Hz. The port air velocity is less than 17m/s, but...

Thanks Bryan. I am curious as to why you say it "looks like a car sub"? The T/S specs seem to model fairly well nevertheless. Sensitivity - SPL - 1Watt @ 1 metre: 88.17 Voice Coil Resistance (Re): 3.5 Ohms Resonant Frequency (Fs): 25.58Hz Mechanical Q Factor (Qms): 3.843 Electrical Q...

I have re-posted this in the DIY Forum. If any wishes to reply please do so there. Thanks.

G'day people, I am wanting to undertake a DIY sub project and have sourced the following main components. I would appreciate your thoughts on the amp and driver I have chosen. Please note that I am coming from a commercial 100W - 8" sub (so I would expect this to be a big step up), and have...

G'day people, I am wanting to undertake a DIY sub project and have sourced the following main components. I would appreciate your thoughts on the amp and driver I have chosen. Please note that I am coming from a commercial 100W - 8" sub (so I would expect this to be a big step up), and have...

I'm waiting for winter here (Melbourne, Australia). We had 44.1°C here on Saturday, that's 111.4°F in the shade. I had the evaporative A/C on and the best it could do was cool it down to 81°F. This was the 2nd highest temp. on record for us. Forget about Siberia having the greatest...

Actually the box is made of MDF, the front wall is 22mm thick and all others are 18mm in thickness. If I could ask or put this another way (hey I'm trying to do this on the cheap), and as an intro to DIY. Could I possibly make the existing equip. sound better in another box, I first thought that...

Thanks Geoff & Brian for your advice so far. Here is the add. info. Yes the sub is ported (model FHS-8SWII). The port has an int. diam. of 70mm, and is 100mm long, both ends are flared. The driver is forward firing, and the sub is ported on the bottom. The internal box dims. are, 329mm (H) x...

Well having read a little more and trying to gain some knowledge (very dangerous), I have the following question. Would love to build a DIY sub at one stage, however was just wondering if replacing the driver in my current sub would make any real difference or is it a complete waste of time...

Thanks Myron. To add a little I'm using the sub pre-out on the receiver, hence are you saying that any ".1" data on the DVD may actually contain info above say the receiver crossover and then this is passed to the sub using the ".1" channel. Hence should you always set the crossover setting as...

Ok here goes with my 2nd post to this forum, i.e. I'm new at this. Please bear with me if I've got some terms wrong. My question is in regard to what the crossover on your sub actually does? I have a Sherwood 6106 and Fidek make sub (I know low end stuff). From memory the sub has adjustable...

Just a quick note to thank all the people on this forum. I have only just discovered this forum and must say that I am amazed at the amount of truly great information available here. Being new to HT I have a lot to learn but in just a short space of time I am up and running, and quite pleased...