fecupe2001 Posted January 14, 2012 Report Share Posted January 14, 2012 (edited) Ok guys, after the "1500 watts amplifiers challenge" i took out everything from the sexplorer, is time to move on and try a bandpass for hairtricks using small cone area, but anyways, i was kind of boring and i wanted to try something fun, hitting over 140 dbs with a DAILY box , cheap equipment on small power and very small cone area, all of this things on a big ass cabin 1) Step one: Getting a cheap sub, i found a Pioneer Champion TS-W258D4 350 watts DVC 4 ohms for 15$ , it didn´t look that bad actually, price it´s something like 45$ if you get it brand new if i´m not mistaken Specs: Features Maximum input power 1.200 W Nominal input power 350 W Impedance 4Ω Frequency response 20 - 450 Hz Lowest resonance frequency 37,4 Hz Sensitivity (1W/1m) 90 dB Woofer size 25 cm Woofer material Interlaced Basalt / Aaramid Fibre Reinforced IMPP Composite Cone Dual 4Ω voice coils: 2 or 8Ω Yes Voice Coil bobbin type Phenol resin coated glass cloth bobbin Pole Yoke Type Extended and Vented pole yoke Magnets Double-stacked, high power Terminals Push-type Recommended sealed enclosure 18,4 - 35,9 litres Surround 3-Layer Fiber Woven Radial Surround Technical Specs Nom. Dia.(In) 10 Qts 0,48 Qms 11,52 Qes 0,50 Fs [Hz] 37,4 Vas [l] 17,63 Vas [ft3] 0,620 Vd [l] 0,326 Vd [ft3] 0,01151 Sd [m2] 0,03134 Sd [ft2] 0,337 Revc [Ω] DUAL1.5 Levc [mH] (2000Hz) 2.2 (4Ω) 0.63 (1Ω) Xmax [mm] 10,4 Xmax [in] 0,41 Zmax [Ω] 96.01 (4Ω) 19.95 (1Ω) BI [Tm] 14.68( 4Ω) Rms[Ns/m] 2,920 Mms [g] 143,28 Cms [m/N] 0,00013 Mg.Wt.[g] 2100 VC.Diameter [mm] 48 Eff [%] 0,18 S.P.L. [dB] 90,0 R.M.S.Power [W] 350 Sp. Displacement [l] 1,64 Sp. Displacement [ft3] 0,058 Recom. Enclosure [l] 22,6 Recom. Enclosure [ft3] 0,80 2) Step two: Get yourself a cheap ass amplifier, i used my old trusty Almani PA1100.2 amplifier, it cost about 100$ brand new, no complains about this little baby, i´ve abused it with 4 mids for about 2 years now without a single problem, of course, since the sub it´s DVC 4 ohms i wired it at 2 ohms P.S: I forgot to take pictures of the amplifier, don´t think you need them tho, if you don´t trust me then i guess i could take some pics tomorrow if you need me too Specs: Almani PA-1100.2 Description * Soft turn ON/OFF * Nickel Plated RCA Jacks * 2 OHM stable operation * Power and Protection LED indicators * High efficiency, heavy aluminum heat sink * Nickel plated power and speaker terminals * All models are bridgeable and stable at 4 OHM * Class "AB" Technology MOSFET PWM Power Supply * Protection circuites against: Overload, Thermal, Reverse Polarity * RMS Power @ 4ohm: 275W x 2 * RMS Power @ 2ohm: 550W x 2 3) Step three: Get yourself some cheap ass plywood (had some scrapp wood on my storage so i didn´t spent anything on this) , screws, glue and wires, total cost: around 32$ 4) Step four: Build your ugly ass box with your cheap materials, box specs: 1.2 cubic feet and 17.5 SQ of port with a 40 hz tuning 5) Step five: Get your ass to my "SPL Gains topic" and use some of the tips i tested over there, if you haven´t visited yet, check it out, use as many things as you can. SPL gains topic Printing vynil 45´s on the pressure corner: DONE!! (no pics) Roundover on the sub hole : DONE!! (no pics) Sexy ass flare using 3/4" pvc strips outside and insinde of the port: Tape around the sub: And finally, metering your ugly ass box on your SUV: Score is sealed on the dash @ 47 hz, plays very nice from 40 to 50 hz, below or above those points it sounds like shit, lots of clipping on that score since i was too lazy to set the gains properly because i don´t give a fuck about that sub lol, so i just burped rolling up the volume knob of the HU and that was it, also, i bass raced a 139.4 using a song from my boy Decaf wich is constant @ 47 hz, with a couple of tweaks i´m sure i could bass race a 139.9 but i´m just lazy as hell since it was just for fun, hope you guys like it Edited January 14, 2012 by fecupe2001 Quote I´m the SPL Gains topic creator!! wanna get louder?? check this: SPL Gains. Panamenian 2009 & 2010 & 2014 Bass Race 149.9 Champion! 2 15" subs and a 2K wired at 1 ohm, http://www.stevemeadedesigns.com/board/topic/167788-fecupe2001-2-15s-on-a-2k-video-on-page-3/ 8 Massive 15" subs and small power, http://www.stevemeadedesigns.com/board/topic/179296-fecupe2001s-8-15s-4th-order-bandpass-wall/ Link to comment Share on other sites More sharing options...
fecupe2001 Posted January 14, 2012 Author Report Share Posted January 14, 2012 Double post FTL, sorry about this mods, please close Quote I´m the SPL Gains topic creator!! wanna get louder?? check this: SPL Gains. Panamenian 2009 & 2010 & 2014 Bass Race 149.9 Champion! 2 15" subs and a 2K wired at 1 ohm, http://www.stevemeadedesigns.com/board/topic/167788-fecupe2001-2-15s-on-a-2k-video-on-page-3/ 8 Massive 15" subs and small power, http://www.stevemeadedesigns.com/board/topic/179296-fecupe2001s-8-15s-4th-order-bandpass-wall/ Link to comment Share on other sites More sharing options...
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