audio set-up for beginners (ARCHIVED)

[batang_raon14]

[QUOTE=userfriendly;819585]Ano ba ang problem? Can you list your system? Does your amp cut off when you play at loud volume for a long time? If it does, your amp might be going into protect mode. This happens when your amp starts to overheat. Easy solution is to make sure your amps have good airflow. Make sure heatsinks are not dirty or blocked. Also never mount amps upsidedown. You can also add cooling fans or lower your volume.

If that is not the problem, try adding a capacitor. It will give your alternator time to catch up.

INMH, mas ok na magdadag na lang ng secondary battery than having a capacitor. passive component po yung cap, meaning, d sya nagsusuply ng power. unlike sa battery na active component, may nilalabas talaga syang kuryente.. this would compensate the power needed by your system pag d kaya ng alternator. one thing more, mas mura batt kesa cap os better have an extra batt over capacitor..

tama rin c userfriendly, baka nagooverheat amp mo.. san ba nakamount ung amp? try mo maglagay ng spacer between nung base ng ampli tsaka ung mounting surface. this way, may papasok na hangin sa base ng amp that will help to cool it down.. and try to mount it vertically para mas madali syang lumamig.

Mga bosing salamat sa reply, anyways, eto ung issue, not really familiar with the way an amp "cuts off".

While playing loud, after mga 45 mins., ung tunog anjan parin, pero parang sa likod na lang nanggagaling, wala na sa front speakers ko, tweeters, at ung bayo ng sub significantly humina. Maya-maya, after 10 mins. or so na i-off ung sounds, pagkaon mo balik na uli sa dati, pero after mga 45 mins. uli na malakas ang patugtog, ganun na naman.

Ung mounting ng amp ko is sa likod ng box ng sub. Bali nakaharap sya vertically sa rear seats ko, may around 2 inches allowance un from the back of the seats.

May capacitor na rin akong nakalagay, and setup ko e targa x652c (tama ba?) front, stock rear, aura sub, at v12 4 channel na class A(cant remember the model).

Tried scouting for the alternator kasi, wala talaga. Kahit sa mga online shops like ebay wala for my car. Kaya ako napatanong sa baterya, kung oks ba na magpalagay ako ng secondary or useless din at pagafter ng 45 minutes e gaganun din ung tunog?

[v6dreamer]

Heto baka makatulong sa mga gustong mang upgrade ng stereo tunkol sa POWER AMP and SUBWOOFERS.

Ang two channel amps ay may dalawang outputs para sa dalawang speaker. Pero doesnt mean na pwede mong lagyang ng dalawang subwoofers. Para sigurado ka you just need to be aware of the impedance of your SUBS and the "load" capacity ng subwoofer mo. Sa ganitong sitwasyon, wiring method ay importante.

SERIES VS. PARALLEL WIRING

Ang typical na car stereo amps ay 4-ohm impedance. Pag sabi ang amplifier ay stable down to 2 ohms, usually referring to the minimum impedance na kaya niyang i handle sa stereo (2 channel) mode, hindi bridged (mono) mode. Kung mas mababa ang impedance(resistance or load) ng amplifier ay mas lalong mag po produces ng lakas at lalakas din ng tunog ng iyon tugtog.

A common way to get a 2-ohms stable amp para mag produce ng extra na lakas na kaya niyang ibigay is to wire your speaker in parallel. Basta tandaan mo na ang series wiring ay raises your impedance, parallel wiring is always lower.

Now, sa subwoofer box naman tayo.

Ang SUB box hindi basta, basta simply box lang na pwede mong ilagay ang iyong Subwoofer. Ito ay importante, it is an integral part of the system. A properly sized and built enclosure can turn your pinaka murang subwoofer into performer at tatawanan mo ang yong pinakamahal na subwoofer kung hindi tama ang box na gamit niya.

Dalawang klase ang pag design ng box at very challenging. siguraduhin mo ang tamang sukat para sa tamang volume of air and controlling the box resonances that will compete sa sounds na galing sa woofer and its sounds. Ang Ideal volume ng enclosure box ay depende kung anong subwoofer na gusto mo.
Ang enclousure volume ng box ay (length x width x height) at usually SUB quoted as INTERNAL VOLUME in calculating ang overall external dimension ng box. Importante ang thickness (5/8 or 3/4) at tigas ng tabla na gagamitin mo. Plywood ay hindi magandaang gamitin parang tunog ng latang
niyuyupi. Size ng box for 10 inch sub is 1 to 1.2 cu.ft.(WxHxL), 12 inch is 1.5 to 2.0 cu.ft. itoy single box lang. Kung dalawang sub na magkatabi sa iisang box then the cu.ft must double.

Remember good qualiy box is a must. Dont use nail on the box, use wood glue and wood screw on all joints and make sure the enclosure is airtight so seal all seams silicon caulking including around the terminal cup.

[james0207]

sir userfriendly... wg nmn un tipong png car show... typical boom boom lng :P hehehe... sabihin n ntin.. mga ave type po..

[userfriendly]

Batang raon,

From your description, it looks like your amp is overheating and going into protection mode. When you turn it off for around 10 mins or so, you give the amp enough time to cool down. After using it again for 45 min, the heat build up is enough to trigger protection mode. Yung V12 mo, orig ba o taiwan? And sure ka ba na class A and not AB? Kasi ang pure class a amps ay mainit talaga.

Try installing fans in a push pull configuration. One fan pulls fresh air in and the other acts as a exhaust fan. Computer fans work great, dami sa SOS. Or just relocate your amp.

I don't think its your alternator cause if its the alt, then your prob should be consistent. Also it should be giving you problems when you turn on lights, a/c etc..

James,
Try mo doon sa mga shops na na mention ko. Personally, kay TEAM cars ko palang nasubukan pero they all have pretty good feedbacks/reputations. Di ako makapag recomend ng brands kasi di ako updated.

[v6dreamer]

mga bossing, tanong ko lang kung ano ang tamang wire size para sa power cord ng amp tsaka speaker wire para sa subs.. i'm using a 600W RMS na monoamp tsaka audiobahn sub na 500W RMS. isa lang po yung sub ko. gauge 8 yung power cord ko ngayon tapos d ko alam yung sa sub wire.. baka kse undersize yung gamit ko, sayang naman pag d mamaximize yung power ng amp.. tnx in advance.

For Sub.
Thicker wire-10, 8, 4, 2 gauge ang maganda depende kung gaano kahaba ang gagamitin mo sa lakas ng power amplifier at kung anong balak mo gawin.

Sa Amps na may put out na 50 watts x 2 channels o kaya 25 watts x 4 ang 10 gauge ay pwede na. Kung balak mong ilagay sa trunk ang Amps mo at gusto mo ang malakas na togtug, 8 or 4 gauge ang gagamitin mo. Laging tandaan na ang Amps ay require a lot of current to handle loud, low bass notes, and the thicker the wire, the more current it can deliver.

"CABLE LENGTH"

Amperes ----12gauge ----10 gauge ----8 gauge ----4 gauge ----2 gauge
125-150 ----4-6ft --------7-10ft -------11-14ft ---- 15-19ft ----19-22ft.

105-125

85-105

65-85

50-65

35-50

20-35

0-25

Current estimate.
First, add up the fuse rating of all your Amps. Now figure your amps total steady state average output(divide total RMS wattage by total peak wattage). Then multifly your fuse rating total by your Amps total steady state average output. This gives you a rough estimate of how much current your sound system is going to require.

Estimate your electrical systems reserve current capacity..
Tingnan mo yung alternator amps rating and multifly it by 40 percent. Ito ang pinakamalapit na base line estimation ang electrical reserve
capacity ng iyon kotse. Halimbawa, kung ang alternator ay may rated na 90 ampere, 90amps x 40 percent = 36 amps na lang ang natitirang power sa sounds system mo. Kung ang figure mo ay mas mataas kesa ito your in good shape.

Needs more advance about details of perfections just ask.

[ammad]

boss userfriendly question ulet,, pwede ko ba ikabit lahat ng channel ko sa seps ko na 2way? yun amp ko yun mtx4244

[userfriendly]

boss userfriendly question ulet,, pwede ko ba ikabit lahat ng channel ko sa seps ko na 2way? yun amp ko yun mtx4244

Pwede bridge channel 1 and 2 and connect to right speaker. Bridge 3 and 4 and connect to left speaker. Just make sure both crossovers are set to high pass or all. If all make sure you have passive xovers on your seps. However, I think it this will give your seps too much power, 200 watts each. If I remember correctly your seps are rated for around 60 watts, tama ba? Baka pumutok ang speakers mo. Also, take note that this setup will be hard to tune. I think you will be in mono.

[ammad]

Pwede bridge channel 1 and 2 and connect to right speaker. Bridge 3 and 4 and connect to left speaker. Just make sure both crossovers are set to high pass or all. If all make sure you have passive xovers on your seps. However, I think it this will give your seps too much power, 200 watts each. If I remember correctly your seps are rated for around 60 watts, tama ba? Baka pumutok ang speakers mo. Also, take note that this setup will be hard to tune. I think you will be in mono.

ahh thanks,, so talagang 2 channel lang mabibigay ko sa kanya opo 60rms lang yun seps ko,, thanks po sa suggestions

[jojokaze]

saan po kya merong avail. na turbo kit? may alam po ba kayo? meon po ba kayang nabibiling 2nd hand na turbo kit yung may inter cooler na

[mmanson]

saan po kya merong avail. na turbo kit? may alam po ba kayo? meon po ba kayang nabibiling 2nd hand na turbo kit yung may inter cooler na

turbo kit??? maling thread ka ata bro. gawa ka na lang dito:
http://tsikot.yehey.com/forums/forumdisplay.php?f=10