Polk Audio db840 8-inch single voice coil subwoofer speaker-Still the best option?

jmos
jmos Posts: 40
edited December 2011 in Speakers
Hi, just wondering if this is still the best replacement for the Lsi15's sub or are there any better options?
Thanks

Regards
John

https://shop.polkaudio.com/forums/showthread.php?p=1189811

http://www.amazon.com/Polk-Audio-8-Inch-Single-Subwoofer/dp/B0016GX21G

http://www.shopping.com/Polk-Audio-Polk-Audio-db840-db-Series-8-4-ohm-subwoofer/info
Post edited by jmos on
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Comments

  • EndersShadow
    EndersShadow Posts: 17,596
    edited August 2011
    I believe the db840 is still the best one out there. If the Polk Engineering folks recommend it, I'd do it (I did).

    Just keep in mind if you buy from a unauthorized dealer (both those links are) then you get no warranty if something goes wrong (with the sub).

    I went ahead and spent the extra cash and went with Crutchfield. They are running buy 1 get one 1/2 off sale right now. http://www.crutchfield.com/p_107DB840/Polk-Audio-db840.html?search=db840&skipvs=T

    After this mod, your crossovers should be next (or a better amp to drive your LSi's depending on what you have)
    "....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963)
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  • TouchOfEvil
    TouchOfEvil Posts: 967
    edited August 2011
    Yes run that driver as it still is the best option.
    Living Room Rig:D
    Rotel RSP-1069/Rotel RMB-1095/Rotel-1072/Polk lsI15's W/modded xoverW/DBsubs/Polk LsiC/lsI7's/Klipsch sub-12"the weak link"/DLP Mitsubishi 65"
    Xbox360/PS3/WII
    M.Br. setup:)
    Emotiva MMC-1/Rotel RMB-1075/Polk BlackStone TL350's/Velodyne SPL1000/Samsung 51" Plasma
    Computer Rig:
    Rotel RB1050/Tannoy DC4's/Klipsch RW-10d/ImodIpod/HK AVR230 for now....
    Headphones-Ultrasone-HFI780's w/LittleDot MK Vamp Portables Panasonic HJE-900's
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  • jmos
    jmos Posts: 40
    edited August 2011
    Great, thanks for confirming that.
    Appreciate the buying tips, need to ship to Western Australia so I'll check those options.
    Online prices over here are about $139 but I'll shop around and contact a few stores direct.

    Currently using an Elektra Theatre HD Amp, made over here, made a huge difference over firstly my Onkyo 875, than Nad T973. Here's the specs on my current amp

    http://clefhifi.com.au/catalog/product_info.php?cPath=56&products_id=70
    I didn't pay anywhere near the display price though

    Power per Channel (Watts RMS)
    7 Channel at 8 ohms 190
    7Channel at 6 ohms 225
    Dynamic Power (Watts RMS)
    8 Ohms 200
    4 Ohms 400
    Total Harmonic Distortion THD @1Khz < 0.0003%
    THD <0.001% 20-20Khz
    Frequency Response 3Hz - 250 kHz. +0,-3 dB
    S/N Ratio 111 dB
    Input types: Balanced & RCA
    Single Potted Silent Power Transformer Yes
    Discrete Power Amplifier Circuitry Yes
    Banana Plug Compatible Speaker Connectors Yes
    12V Trigger Yes
    Height 160 mm Width: 445 mm Depth: 370 mm
    Weight 25 kg

    Thanks again
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  • teamjhertz
    teamjhertz Posts: 361
    edited August 2011
    There is a really cheap pair of these subwoofers on eBay right now and might be worth a shot.

    I know you are in Australia but I thought someone might be interested.

    The item number is 250875802624
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  • TouchOfEvil
    TouchOfEvil Posts: 967
    edited August 2011
    I got both my db840's from ebay. have had zero issues.
    Living Room Rig:D
    Rotel RSP-1069/Rotel RMB-1095/Rotel-1072/Polk lsI15's W/modded xoverW/DBsubs/Polk LsiC/lsI7's/Klipsch sub-12"the weak link"/DLP Mitsubishi 65"
    Xbox360/PS3/WII
    M.Br. setup:)
    Emotiva MMC-1/Rotel RMB-1075/Polk BlackStone TL350's/Velodyne SPL1000/Samsung 51" Plasma
    Computer Rig:
    Rotel RB1050/Tannoy DC4's/Klipsch RW-10d/ImodIpod/HK AVR230 for now....
    Headphones-Ultrasone-HFI780's w/LittleDot MK Vamp Portables Panasonic HJE-900's
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  • ddward
    ddward Posts: 4
    edited December 2011
    jmos wrote: »
    Great, thanks for confirming that.
    Appreciate the buying tips, need to ship to Western Australia so I'll check those options.
    Online prices over here are about $139 but I'll shop around and contact a few stores direct.

    Currently using an Elektra Theatre HD Amp, made over here, made a huge difference over firstly my Onkyo 875, than Nad T973. Here's the specs on my current amp

    http://clefhifi.com.au/catalog/product_info.php?cPath=56&products_id=70
    I didn't pay anywhere near the display price though

    Power per Channel (Watts RMS)
    7 Channel at 8 ohms 190
    7Channel at 6 ohms 225
    Dynamic Power (Watts RMS)
    8 Ohms 200
    4 Ohms 400
    Total Harmonic Distortion THD @1Khz < 0.0003%
    THD <0.001% 20-20Khz
    Frequency Response 3Hz - 250 kHz. +0,-3 dB
    S/N Ratio 111 dB
    Input types: Balanced & RCA
    Single Potted Silent Power Transformer Yes
    Discrete Power Amplifier Circuitry Yes
    Banana Plug Compatible Speaker Connectors Yes
    12V Trigger Yes
    Height 160 mm Width: 445 mm Depth: 370 mm
    Weight 25 kg

    Thanks again
    Thats a real nice looking amp. good looking specs:
    Sunfire cinema grand amp, Marantz sr6500 pre/pro, Polk lsi15 mains, Polk lsic center, Polk lsi7 rears,
    Def tech sub. Blue Jeans interconnects.
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