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  • Country

    United States


  • Rank
  • Birthday 05/07/1975


  • Location
    Manchester, NH
  • Occupation
    Babysitting data streams
  • Interests
    car audio
  • Audio System Setup
    ScanSpeak front stage, TC Sounds LMS subwoofer, Morel Elate midbass....and soon JL Audio power.

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    Chads build log

    Lookin good!

    I guess it's recone time.. What would cause this?

    How many times does the 'Sundown Audio' logo appear on this sub? Inside and out? ...at least you'll never forget who made it.

    New show to watch

    I just binge-watched 'The Expanse'...i enjoyed it. Just started 'West-World' as well.


    Just saw Captain Marvel...that’s 2 hours of my life I’ll never get back. This entire movie was clearly a galactic virtue signal. The writing was terrible, the acting was even worse. Brie Larson was absolutely the wrong person for the lead role. The whole production felt rushed. Poor action sequences and lots of unnecessary drama. They had to tie it into the Avengers but did so very poorly and in ways that made no sense and didn’t really contribute to the overall storyline. The movie was clearly made as a result of the #metoo movement and follows the new trend of every special interest group gets their own character/movie. Really disappointing effort.
  5. Check em out...new Audiomobile goodies: http://www.12voltnews.com/2019/03/06/audiomobile-returned-to-knowledgefest/

    What song are you listening to right now?

    Bob Marley; No woman, no cry

    2.67 ohm load

    The measured DCR (direct current resistance) of a stationary voice coil is not the same as the nominal impedance presented to the amp under normal use. When the coil heats up it will increase the resistance also music isn’t static so the load will vary with the signal. Dyno testing at a specific resistance may yield a specific number...but that will only give you an idea of the amps capabilities.
  8. Gracias mang! I appreciate you taking the time to do this. 1.75@26hz it is!
  9. Got these from another source...dvc Qts: 0.42 Qms: 5.80Vas: 92L Qes: 0.45Fs: 22Hz SPL: 90dBRe: 7.6ohm Pe: 600wLe: 0.507mH BL: 19.80Xmax 20.0mm Diam: 12inZ: 4.0ohm Sd: 0.046m^2Mms: 160g
  10. https://www.diymobileaudio.com/forum/technical-advanced-car-audio-discussion/40638-audiomobile-mass-subwoofers.html Try these...maybe more accurate...it is for a svc...but hopefully close enough to model an enclosure. The specs are midway down the thread. Thanks for you efforts!
  11. Thanks...i appreciate the assist. Yeah i want it tuned low...I have AF GS690's up front so I'll have midbass by the mile...so I'm lookin for the sub to hit the low-lows. With an FS of 23.6 it should be comfortable playing that low. i would certainly give up a bit of overall output to make it reach lower...I know there's usually a trade-off. SQ is the main goal...I'm not so much into super-loud these days.
  12. Alrighty ported box gurus...as the thread states I'm lookin to port my MASS 12. Here are the specs and what I'm planning to build...All (constructive) input is welcome. Thanks! T/S: Fs: 23.6 Hz Qms: 6.13 Qes: 0.43 Qts: 0.40 Vas: 2.8 cubic feet Re: 1.58 ohms BL: 19.8 Le: .50 mh Xmax: 20 mm Sensitivity: 89.6 dB (with 1-watt input) The plan is 1.75cubes (after sub, port and bracing displacement) tuned to 26hz. It will basically be a long and thin truck-style box with a single 4inch port due to physical restraints. Power will be 500rms from the sub channel of a JL 900/5. i know the port is a bit small, but it's relatively low power and winisd shows port velocity will still be pretty low. Let me know what you think, or if you have a different recommendation. Thanks!
  13. Well...my Froggy Frontier is no longer a 5.1 surround build...i removed the center and rears and one of the two subs and one of the JL 900/5's. I'll be sticking with stereo with the GB10's, GB25's and GS690's up front and going with a single Audiomobile MASS 12 ported and tuned low...26hz-28hz most likely. Once I get the specifics of the enclosure design I'll post it in the enclosure design section to get some opinions...there are a few folks here that are quite good at designing ported enclosures so I'll be interested to see what they have to say. I'll keep the pods on the dash for now but will most likely glass the tweets and mids into the A-pillar once it gets a little warmer outside...I live in NEw England and still a bit cold to be playing in the garage.
  14. NSTALN

    New Dayton Audio subs...looks like a beast.

    They haven’t been released yet. This info came from CES this year. They look pretty mean.
  15. MRV-F250 Specs: - RMS Continuous Power output (@ 12.0V 20 Hz to 20 kHz) 25 watts x 4 @ 4 ohms, 0.08% THD 35 watts x 4 @ 2 ohms, 0.3% THD 70 watts bridged into 4 ohms, 0.3% THD - Dynamic Power (a 14.4V, 20 Hz to 20 kHz) 40 watts x 4 @ 4 ohms, 0.08% THD 50 watts x 4 @ 2 ohms, 0.3% THD 100 watts bridged into 4 ohms, 0.3% THD Frequency Response - 10 Hz to 50 kHz (+0, -1 dB) Signal to Noise Ratio - 100dB Slew Factor - Greater than 5 Inout Sensitivity (for rated power output) - 200mV to 4.0V (1.0V at center detent) Active Network Frequency and Slope - 50 to 200 Hz, 12 db per Octave Dimensions: (W x H x D) 240mm X 53mm x250mm ( 9-7/16" x 2-1/16" x 9-14/16") Weight: 3.0Kg (6lbs)