| LaserDisc Database https://forum.lddb.com/ |
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| Official Subwoofer thread https://forum.lddb.com/viewtopic.php?f=27&t=2442 |
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| Author: | darkgenerals [ 18 Jul 2016, 22:10 ] |
| Post subject: | Re: Official Subwoofer thread |
Another SW 303 owner checking in. elieb how do you like the quality of the kenwood? I'm not impressed in the least bit, but I payed 30 bucks so I'm ok with it. |
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| Author: | harlock [ 11 Sep 2017, 03:58 ] |
| Post subject: | Re: Official Subwoofer thread |
Recently got a vintage McIntosh HT-2 THX sub from the 90s. Dual 12 inch behemoth large enough to double as a coffee table. As this is a passive sub, I plan use a dedicated pro amp (Peavey/QSC) to handle the max 600 watts it can take. Mac quality from Binghamton: 
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| Author: | rein-o [ 11 Sep 2017, 04:38 ] |
| Post subject: | Re: Official Subwoofer thread |
Cool find. Hope you aren't my neighbor 
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| Author: | harlock [ 11 Sep 2017, 06:15 ] |
| Post subject: | Re: Official Subwoofer thread |
Indeed, it will get loud  Would have loved to get the rest of the Mac stuff from the estate sale that had the sub, there was a preamp and 6 channel amp from the same era as the HT-2, but the pre was history when I got there and the amp was too pricey. First time I found McIntosh stuff "in the wild", quite neat, and the seller threw in my choice of cables for the sub so I chose the most expensive looking Audioquest banana terminated wires there and was given a pair.
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| Author: | shopkins82 [ 09 Oct 2020, 06:59 ] |
| Post subject: | Re: Official Subwoofer thread |
I finished construction of my DIY Dayton Ultimax tonight (save for the grille). It's in ~12 cuft, slot ported, tuned to ~17.5hz. Power is from a Behringer Eurocom AX6220 which, realistically, should put out somewhere around 1500w bridged with the driver's 4ohm load. WinISD models show it hitting 115-117db at the listening position with anechoic extension to ~16.5hz... so possibly ~14-15hz in-room. A quick function test yielded EXTREMELY positive results with a few test scenes (Avengers: Endgame final battle in Atmos on UHD, Independence Day first attack in AC3 on LD) with the HPF set to 20hz (as low as I could go via the Amp DSP's onboard controls) and levels rough-matched by ear. I'll hopefully get it slid into place start to dial everything in with the Behringer PEQ, REW, and Dayton UMM-6 calibration mic sometime tomorrow. It's not much to look at as-is, but once it's slid into its dormer (front flush with walls on each side and media shelf / projector hush box above) and its grille is contructed/attached, it will basically disappear:  This will be its final location with my old DIY Ascendance Avalanche in ~6 cuft tuned to ~18hz powered by a BASH 300w plate amp still in place:  
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