Topic: Amplifier for SUBWOOFER

[arthurallanj]

bro arthur, i already have 15" sub powered by an outboard amp. because its amp is outboard, medyo convenient to change it anytime. what i have in mind is to have another amp to use para pagpali-palitin ko whenever i feel the need kung alam kong medyo pagod na ang isang amp, or whenever nangangati ang mga kamay ko at wala akong magawa hehe!  .

any idea about the price bro? thnks

 

Dati, I saw an amp sub, stereo, rated at 100W per ch, it was priced at 3000, dito pa sa Bacolod yun. So, I'm sure you'd find something in that price range sa Raon, but of course, the quality wouldn't be as good as the ones mentioned by sir AV. You know what a friend of mine is into these days just to satisfy ang likot ng kamay? He bought several powered subs, opened them up, duplicated the amp circuits and made those sub enclosures by himself and chose his own drivers. So, parang DIY powered subs, duplicating the circuits that came with the subs he bought. I also plan to do that myself. I even plan to bi-amp a dual voice coil driver with a 2 ch sub amp, since I have a 2ch powered sub. Ang saya nito. hehehe.

[jerix]

Hey bros, thnks for all your responses-- maybe pag-iipunan ko na lang ung sinasabi ni bro av_phile na 15t- meanwhile isantabi ko muna ung iniisip ko unless me magbenta later ng kahit na second hand pero magandang sub amp-- 

[catinthehat]

need to know the specs of subs before any recos can be made...check out digital dreams (sm city - cyberzone), soundroom at podium or acoustical space at megamall...they carry amps for the meanest subs there is...

[odyopayl]

How about buying a car amplifier worth 6K paired by 6 ampere rating 12 volts transformer. The amp can be bolt directly at the back of your sub enclosure then transformer inside the box may built in crossover pa including gain! Paired with JL audio sub? I've heard car audio sub dumadagundong!

[ryan750]

hi

              saan ba meron yung mga low pass filter na yan at lahat ng circuit sa loob ng sub pwera yung amplifier. gusto ko0 kasi yung may high level input at sattelite speaker output, variable crossover frequency.  t.y.

[av_phile1]

These are normally part of the powered sub-amplifer circuitry.  Got to open a USAudio and DTX sub and those low pass variable filters, high level and satellite out conntections are part of the circuit board.  Could be wrong, but I am not aware of these circuits being sold separately. 

[ryan750]

NAKAKITA NA KO AMP FOR SUB

 220v so swak sa bahay 300w complete w/ filters power supply etc.. just put at the back oy your enclosure price 4.5k.  just contact jojod818 :-)

[jerix]

bro ryan,

please post your experience with that new sub amp please-- 

[ryan750]

bro, jerix

            di ko pa siya nabibi li ala pa budget nag inquire lng ako..:-)

[JojoD818]

Hi,

Na mention na pala pangalan ko dito  , Ryan, sorry if I still haven't replied on your query about the sub filter. I have one working prototype available but my workroom is so messed up that I can't find my favorite shear cutter!  I'll tell you once I found it.

I'll start a new sub project next week, I'll keep you posted on the project's details. 

Cheers,
JojoD

[alabonjo]

Hello guys new in this forum actually this is my 6th times to join this kind of forum. And I'm  happy, I finally found this two "pinoy audio/video forum". I've started this hobby since 1998 and I'm still enjoying it, until now. but I have a dilemma in picking sub, actually this will be, probably my third sub my 1st  is "ganzklar 200true rms" and my 2nd is velodyne cht-8 (sakit sa bulsa) tight and clean bass both music and movie, but lack in head room and deep bass ( but in small room sound very unbelievable ). But in this set-up I'm quite happy unless no rattling sound. Until one respected  member from other forum offered me a free shipping delivery package, of "tempest (15")" subwoofer driver from "adireaudio.com" and a plate-amp 250/watts "300-794" from "partsexpress.com" for "DiY route". Mga kababayan  Sinamantala ko na, I added three fostex fullranged driver for my mains and center channel and some other related accesories. I read some one here already build this "Tempest ", hope I can hear your  experienced with this sub, also what type of enclosure have you made.
   Btw the person will bring my stuffed here is Mr. Tim Forman "timn8ster" he's very kind her wife is Filipina, hope he'll join the forum too. Guy's, I'm just sharing my one time opportunity experienced  sa paglalakbay ko sa internet audio and video forum. Maraming salamat

[ryan750]

bat wala ung pi-nost ko kanina???


ok, .... opinion nyo lang po i'll be using a 12" or 15" targa sv/dc sino ba ma T/S parameters nito penge naman. I will use a kenwoode kt-1000 amp 100wpch pero right lang na channel sira kc ung left eh. OK BA TO  gamitin ko sana filter ni jojod818 kung magbebenta siya nun saken:-). Ang goal ko sa paggawa ng sub ay mambulabog ng kapitbahay ,is 15" rated at 500w can do the job? t.y.
my enclosure will be 24 x 21 x 26". saan ba pede magpasadya ng enclosure?

[JojoD818]

bat wala ung pi-nost ko kanina???


ok, .... opinion nyo lang po i'll be using a 12" or 15" targa sv/dc sino ba ma T/S parameters nito penge naman. I will use a kenwoode kt-1000 amp 100wpch pero right lang na channel sira kc ung left eh. OK BA TO  gamitin ko sana filter ni jojod818 kung magbebenta siya nun saken:-). Ang goal ko sa paggawa ng sub ay mambulabog ng kapitbahay ,is 15" rated at 500w can do the job? t.y.
my enclosure will be 24 x 21 x 26". saan ba pede magpasadya ng enclosure?

Hi,

You can ask for TS parameters for Targa subs at any Dai-ichi showroom, there is one in megamall.

Anthony, or Nirvblakr (don't know which is which, sorry), can build the box for you with matching finish. Though I suggest you experiment first before you do box finishing (para naman di masayang).

If the Kenwood amp can hold it's own, your neighboor's would probably call the local barangay tanod. 

Goodluck,
JojoD

[hattori_hanzo]

hi guys specially mga DIY'ers,

Can you tell me where I can buy an amplifier localy, im planning to build a DIY subwoofer and I particularly need a high power amp specially designed for subwoofer. similar to what branded subwoofer use kahit local lang basta may quality. or baka meron sa inyo nag aasemble ng sub amp dyan, please PM me.   

your response is highly appreciated.

Thank you...     

[mixx]

sir,

meron po amplifier module na nabibili for professional powered speakers and they cost around 10k power is around 300wrms@8ohms ill try to post the no of the distributor/dealer 

hi guys specially mga DIY'ers,

Can you tell me where I can buy an amplifier localy, im planning to build a DIY subwoofer and I particularly need a high power amp specially designed for subwoofer. similar to what branded subwoofer use kahit local lang basta may quality. or baka meron sa inyo nag aasemble ng sub amp dyan, please PM me.   

your response is highly appreciated.

Thank you...     

[hattori_hanzo]

sir,

meron po amplifier module na nabibili for professional powered speakers and they cost around 10k power is around 300wrms@8ohms ill try to post the no of the distributor/dealer 

thanks sir.

[ATJr.]

try jojo, i am sure he has something for you, or else you can try that shop opposite watson's at chinatown, they sell high powered amps in kits, "westrack" is the brand.

[hattori_hanzo]

try jojo, i am sure he has something for you, or else you can try that shop opposite watson's at chinatown, they sell high powered amps in kits, "westrack" is the brand.

thank you sir 2ny, ill PM sir Jojo. Ill also consider goin to chinatown this week and look for that "westrack" brand amp kit. thanks! your really a big help sa lahat. salamat ulit.     

[qguy]

the amp kit mentioned, is this a subwoofer amp complete with filters / gains or just an regular amp ?

[JojoD818]

2ny,

are you still in Russia or back in Manila? I've been in that shop a lot of times, I believe the shop's name is Decibez and the kit amp's name brand is Westrak - very popular in the 80's and early 90's mobile groups. the chinese guy there said that his "kumpare" designed the amps but at close inspection it is a jbl "3-deep" emitter follower design - very powerful amp indeed!

qguy,

they formerly sell kit amps but due to a lot of returning customers with burned kits they decided to just sell fully assembled amp modules. you can buy the amps separately with or without their psu.

[qguy]

how about the filters ?

[JojoD818]

how about the filters ?

in the long time that i have been around raon I haven't seen one yet being sold in those shops. I just build them myself. it has a variable gain, variable frequency cut-off, phase switch, speaker level and line level inputs.

[hattori_hanzo]

in the long time that i have been around raon I haven't seen one yet being sold in those shops. I just build them myself. it has a variable gain, variable frequency cut-off, phase switch, speaker level and line level inputs.

sir I got ur PM.

[ATJr.]

are you still in Russia or back in Manila? I've been in that shop a lot of times, I believe the shop's name is Decibez and the kit amp's name brand is Westrak - very popular in the 80's and early 90's mobile groups. the chinese guy there said that his "kumpare" designed the amps but at close inspection it is a jbl "3-deep" emitter follower design - very powerful amp indeed!

yes, i am in russia at the moment, will be back late july or august.  despite what they might say, westrack amps are copied from designs out of magazines and databooks. i know when i see them. only semicon devices are different, so buying them is no hazzle, they are proven designs.  even QSC design has been pirated and is being sold locally by you know who, but i am not going to dwell on that. we pinoys are great imitators, and we get away with it all the time. why we are ashemed to admit it puzzles me no end.

[JojoD818]

my brother has one, in fact they use Sanken powerpaks, lovely devices  .

anyway, i just thought you are still in Manila. 

[ATJr.]

my brother has one, in fact they use Sanken powerpaks, lovely devices  .

anyway, i just thought you are still in Manila. 

this is picture of me at work in russia....

[hattori_hanzo]

this is picture of me at work in russia....

Sir oks na oks ah?

you might want to consider goin to St. Petersburg, maganda dun, went there last year...

[JojoD818]

Tony, grabe lamig dyan! Regards to our comrades there. 

[ATJr.]

ou might want to consider goin to St. Petersburg, maganda dun, went there last year...

it's a good 9 hours flight from where i am now...but i plan on ordering some svetlana tubes from there..4x EL509's cost U$200 including freight....

[is_otam_Ap]

in the long time that i have been around raon I haven't seen one yet being sold in those shops. I just build them myself. it has a variable gain, variable frequency cut-off, phase switch, speaker level and line level inputs.

Sir i'm looking for this item meron kasi akong biniling subwoofer speaker kaya lang ang problema ko is to elliminate yung voice na lumalabas gusto ko low frequency lng. Kaya I went to megamall and bought subwoofer filter sa dai ichi . We test the filter wow ang lambot ng sound ng speaker pero when i use the filter sa bahay ngek mukang walang nangyari may voice pa rin na lumalabas hndi na filter .. ang daya naman nila malamang filtered na yung output ng amp nya bago kinabit yung subwoofer filter ko ... ang gulo ba ... any way bottom line po eh I need help para makagawa ako nito or bumili na lang kung meron kang available paki PM naman ako regarding price or spec  kailangan ko lang talaga... pasensya na po di ko alam kung OT ako dito