back pack boom box help |
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Saturnus
Old Croc Joined: 13 July 2010 Location: Copenhagen Status: Offline Points: 2025 |
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I suggest you ask on the facebook page for the users impressions. I promise to stay out of the discussion.
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Shortrope
Young Croc Joined: 08 July 2013 Location: Ireland Status: Offline Points: 1232 |
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I've a Boominator and it's outstanding!
My mate just finished his Boominator and it's outstanding too!! |
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My Tinnitus is coming along nicely!!
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tcourtneyvincent
Young Croc Joined: 04 January 2011 Location: Devon Status: Offline Points: 1146 |
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OK i think you have swayed me haha. I will go for a half boominator, but, can i just increase the length a bit to give a lower cutt off? I know i cant increase the withe because that will change how the back of the magnet increase the efficiance of eachother but surely increasing the length will just increase the chamber size and mean it drops a bit lower. Oh which brings me onto my second question, do you use a hi pass filter anywhere? i cant see one... Also since im using only 2 speakers are there 4ohm versions of the drivers you recomend? or are there other 4ohm alternatives to get the most out of the amp? Edited by tcourtneyvincent - 12 December 2013 at 9:26am |
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Saturnus
Old Croc Joined: 13 July 2010 Location: Copenhagen Status: Offline Points: 2025 |
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The piezo tweeters in the pack do not require a high pass filter beyond a single 47ohm series resistor on each.
There are no 4 ohm version of HP10W available. But that means you can use cheap as dirt amps that are only good at 8 ohms instead like the below. Note that neither of these should be used with 4 ohm speakers: For 12V: http://www.ebay.com/itm/MKll-TA2024-Fully-Finished-Tested-PCB-Power-Digital-Amplifier-Board-2x15W-12V-/360626685157?pt=AU_Electronics_Audio_Amplifiers&hash=item53f70684e5 For 24V: http://www.ebay.com/itm/TK2050-50W-50W-2x50W-Class-T-HIFI-Stereo-Audio-Amplifier-Board-/181232868690?pt=US_Amplifier_Parts_Components&hash=item2a32521d52 If it were just that simple. No, I strongly recommend not changing any measurements of the speaker compartment or the port/handle. If it sounded better going lower with a small change in cabinet volume I would have designed it so. As any other ultra-resonant system, the Boominator works because it's the perfect storm of doing many things wrong in order for the outcome to be right. Changing one parameter makes the whole systems strengths collapse and you're left with something that will not only not play deeper bass but won't sound like it does either. That's the trick here, it sounds like it plays really deep bass, while in fact it doesn't. And that's the whole point. Edited by Saturnus - 12 December 2013 at 10:13am |
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tcourtneyvincent
Young Croc Joined: 04 January 2011 Location: Devon Status: Offline Points: 1146 |
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OK i understand, u mention a Qubinator instead of a halfinator. Do you still stand by this as you havnt mentioned it in this thread yet. Thanks for the help btw :) |
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Saturnus
Old Croc Joined: 13 July 2010 Location: Copenhagen Status: Offline Points: 2025 |
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The Qubinator is an alternative if absolute portability is the main concern. It has Boominator-like sound but it is not as good in any area. Less bass, less treble, less detail, not as loud.
Edited by Saturnus - 12 December 2013 at 10:19am |
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tcourtneyvincent
Young Croc Joined: 04 January 2011 Location: Devon Status: Offline Points: 1146 |
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Im sure that is the case when compairing it to the boominator, but what about the halfinator? |
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slaz
Old Croc Joined: 27 November 2009 Location: London E2 Status: Offline Points: 2713 |
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Just curious - I know the Boominator is designed for use in "open space" ... but what happens if you DO place it against a wall ? (Lets assume on the pavement/sidewalk against a brick wall) How does it behave ?
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REMEMBER....POLITICIANS AND DIAPERS SHOULD BE CHANGED OFTEN AND FOR THE SAME REASON
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Saturnus
Old Croc Joined: 13 July 2010 Location: Copenhagen Status: Offline Points: 2025 |
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In effect you can compare a Boominator with a bandpass sub in the way it works. A bandpass sub is also a ultra-resonant system where if you change one of the internal volumes, the ports, or the driver for one with different parameters the whole system collapses and it will not play anything well. And like a bandpass sub there is almost only one specific combination of internal volumes and ports that works for a specific driver.
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Saturnus
Old Croc Joined: 13 July 2010 Location: Copenhagen Status: Offline Points: 2025 |
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That was compared to a halfinator. |
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Saturnus
Old Croc Joined: 13 July 2010 Location: Copenhagen Status: Offline Points: 2025 |
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As you'd expect, increased bass output. It's only when brought indoors in something less than gym sized building (ie, four walls, a floor and a roof), you'd have a decidedly negative effect. |
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tcourtneyvincent
Young Croc Joined: 04 January 2011 Location: Devon Status: Offline Points: 1146 |
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Hmm what do you mean by negative effect? |
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