What Is The Smallest Possible Enclosure For HiVi B3N? - DiyAudio

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• What is the smallest possible enclosure for HiVi B3N?

You are using an out of date browser. It may not display this or other websites correctly.You should upgrade or use an alternative browser. What is the smallest possible enclosure for HiVi B3N?

• Thread starter Thread starter Jimmy154
• Start date Start date 2012-08-23 1:09 am

Status Not open for further replies. Jump to Latest

Jimmy154

Member

Joined 2002 HiVi recommends a 2 liter enclosure: Product information:B3N Full-Frequency How can I get it smaller? I'm not sure aperiodic venting is an option since I plan on mounting them on the wall. T

toobhed

Member

Joined 2010 Given that two liters would be less than 125 sq inches, or 5" x 5" x 5", I'm not sure that it would make sense to go much smaller....just my 2 cents Mario

Patrick Bateman

Member

Joined 2006

Jimmy154 said: HiVi recommends a 2 liter enclosure: Product information:B3N Full-Frequency How can I get it smaller? I'm not sure aperiodic venting is an option since I plan on mounting them on the wall. Click to expand...

step 1: take the woofer and place it face down on a coffee table step 2: place something heavy on it, like a cinder block step 3: play music step 4: if it doesn't sound completely atroicous, then the answer to your question about "0.06 liters". (That's the volume of air underneath the cone of the woofer and above the coffee table.)

audiosteve

Member

Joined 2004 shadow-side.com IIRC it's a pretty hi Q driver. Even open air would probably be OK. Less than 2 liters would probably give you a pretty hi upper low end bump in response.

fakeout

Member

Joined 2012 I'm pretty sure I saw a HiVi plan at Zaph Audio. B

boris81

Member

Joined 2009 diyaudio.com/forums/multi-way/193689-build-thread-ardor-point-source-monitor.html You can simulate it pretty quick and easy with WinIDS.

Melo theory

Member

Joined 2009 mtheory.us/ You can do an aperiodic vent on any side, it doesn't have to be out the back.

blakkshepeaudio

Member

Joined 2010 The B3 is indeed a very high Qts driver. Two litres gives a significant bump well above 100 Hz which is too high to even sound like bass. Zaph put them in (I think) 3 litre sealed boxes and they work quite well. I have made 3litre boxes for a number of friends and they are quite serviceable, if inevitably quite light-on for bass. I also have put them in about 1/2 litre boxes, which is about the smallest cube they will fit into, and used them as satellites. Provided you think about it, it is possible to cross them over in such a way that the filter starts to roll off as their output is climbing up to the bump. This can cancel out and give a 3dB frequency as low as about 90Hz with very good LF power handling. My HT system uses these and they are truly excellent in this role. They sound pretty mumbly and lo-fi without the HPF though. And, yes, they work OK on an OB but the linear travel limit comes up real quick and the 3rd harmonic distortion is the stuff of nightmares. Again, a HPF is really mandatory. Rgds, blakkmax B

Bare

Member

Joined 2001 Found this Photo a while back in this forum. Seems more than appropriate imo 🙂

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bjorno

R.I.P.

Joined 2005

Melo theory said: You can do an aperiodic vent on any side, it doesn't have to be out the back. Click to expand...

...Or a damped box/damped port in a larger enclosure in order to preserve BW.. b🙂

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