Amplifier for your subwoofers

[Jef2]

lifted this from another topic:
    
Re: AnU MaS Ok sA InYoNg SUb 18" SpeAker?
« Reply #144 on: Today at 11:23:57 AM »
   
sir, the selection of the amp is primarily based on the type of speaker/woofer that you will be using.  for the c-18elf which is rated at 800 watts at 8 ohms,  try to look for an amp that can produce 1000 to 1200 watts at 8 ohms (stereo-mode).

hope this helps.  

@king_james
Just to add,  for an amplifier to better power your low frequencies,  check the DAMPING FACTOR specs.  If it's higher than 800,  then expect better bass response.

+1 for the damping factor.  crown amps typify this feature.  i think it's largely the reason on why crown amps are known as the best amplifiers for your subwoofers.    the ma3600vz and 5000vz both have a damping factor of >1000.

[karlwilson]

how much naman kaya ito sir..sorry ha,laguna ako ,long distance charges sa manila ang calls sa landline..kaya dito lang nakaka-inquier sa forum.thanks

[tjlimjoco]

lifted this from another topic:
    
Re: AnU MaS Ok sA InYoNg SUb 18" SpeAker?
« Reply #144 on: Today at 11:23:57 AM »
   
sir, the selection of the amp is primarily based on the type of speaker/woofer that you will be using.  for the c-18elf which is rated at 800 watts at 8 ohms,  try to look for an amp that can produce 1000 to 1200 watts at 8 ohms (stereo-mode).

hope this helps.  

@king_james
Just to add,  for an amplifier to better power your low frequencies,  check the DAMPING FACTOR specs.  If it's higher than 800,  then expect better bass response.

+1 for the damping factor.  crown amps typify this feature.  i think it's largely the reason on why crown amps are known as the best amplifiers for your subwoofers.    the ma3600vz and 5000vz both have a damping factor of >1000.

+ 1  kilalA na talagA ang cr0wn 3600vz at 5000vz pang subs.

skA nabanggit din samin dAti na "l0w impedance" amplifier ang cr0wn kaYa hindi gaan0 nasisira ang speAkers mo pag it0 ang amp m0. 

[ohms05]

Ive seen magus amplifier driven on 2 wsx subs malakas and di umaabot sa clipping though naka full set yung volume sa amps.
anybody knows where i can buy this amp?

[ryanbairan]

Ive seen magus amplifier driven on 2 wsx subs malakas and di umaabot sa clipping though naka full set yung volume sa amps.
anybody knows where i can buy this amp?

ang dami po niyan sa Raon  less than 15k

[ohms05]

ah thanks bro well check

[Jef2]

we used this amp crown power base 2, sa sub

hindi ba underpower ang crown powerbase2 for subs?  although we tried this series before at 'parallel-mono' mode to max it out and magic! 

this is how it's done:



at basic stereo mode,  the pb2 is rated at 325w into 8 ohms per channel.  but at 'parallel-mono' mode,  the pb2 can unleash 920w into 2 ohms.  therefore, if you have a pair of 18", then you can expect at least 460w (920w / 2) to go to every speaker.



take note that this old powerbase series has a damping factor of >1000. so expect better bass response. 

[sl1200ltd]

hindi ba underpower ang crown powerbase2 for subs?  although we tried this series before at 'parallel-mono' mode to max it out and magic! 

this is how it's done:



at basic stereo mode,  the pb2 is rated at 325w into 8 ohms per channel.  but at 'parallel-mono' mode,  the pb2 can unleash 920w into 2 ohms.  therefore, if you have a pair of 18", then you can expect at least 460w (920w / 2) to go to every speaker.



take note that this old powerbase series has a damping factor of >1000. so expect better bass response. 

If you have a pair (2pcs.) of 18" assuming 8ohms each x 2 then that will only be 4ohms load... so in Parallel-Mono mode that is only 655watts total, 655 / 2 = 327.5watts @ 18"... halos pareho ng naka Stereo mode ka.    

[Jef2]

If you have a pair (2pcs.) of 18" assuming 8ohms each x 2 then that will only be 4ohms load... so in Parallel-Mono mode that is only 655watts total, 655 / 2 = 327.5watts @ 18"... halos pareho ng naka Stereo mode ka.    

true, if and only if your woofers can maintain a constant 8 ohms load.  most speakers have published nominal rating of 8 ohms.  but this is just the 'expected' impedance.  in most cases,  the impedance can go as low as 6, 5.5 or even 5 ohms especially when you play those loud, bass frequencies.     so if a pair of 18" with impedances at 5 ohms each for example, at parallel connection, can go as low as 2.5 ohms, then the 'parallel-mono' mode which i discussed earlier is the safer config to drive your 18" woofers. 

one of many reasons why i still love crown amps. 

hope this helps. 

[tjlimjoco]

hindi ba underpower ang crown powerbase2 for subs?  although we tried this series before at 'parallel-mono' mode to max it out and magic! 

this is how it's done:



at basic stereo mode,  the pb2 is rated at 325w into 8 ohms per channel.  but at 'parallel-mono' mode,  the pb2 can unleash 920w into 2 ohms.  therefore, if you have a pair of 18", then you can expect at least 460w (920w / 2) to go to every speaker.



take note that this old powerbase series has a damping factor of >1000. so expect better bass response. 

SiR, ganit0 yunG set-up ng isanG frend namin.  Gamit nYa ay cr0wn mt1200. Pinag-dadrive sa 1 pares na subs gamit c18 650.  Malakas pa mag baSS sa CA18 hehehe. NakA-paraLLel mon0 

[lighttech]

If you have a pair (2pcs.) of 18" assuming 8ohms each x 2 then that will only be 4ohms load... so in Parallel-Mono mode that is only 655watts total, 655 / 2 = 327.5watts @ 18"... halos pareho ng naka Stereo mode ka.    

i agree with this one.. unless the 18 inchers are 4 ohms each. and regarding damping factor, to get most of greater than 1000 damping factor, the speakers must be connected directly to the amps output terminal, without using speaker cables.   add a few meters of typical speaker cable and the thousands damping factor goes down to a little more than a hundred.   the speaker cable's gauge and length play a more significant role than the amps damping factor rating. here's an article regarding damping factor.. http://www.prosoundweb.com/article/damping_factor/

[Jef2]

and regarding damping factor, to get most of greater than 1000 damping factor, the speakers must be connected directly to the amps output terminal, without using speaker cables.   add a few meters of typical speaker cable and the thousands damping factor goes down to a little more than a hundred.   the speaker cable's gauge and length play a more significant role than the amps damping factor rating. here's an article regarding damping factor.. http://www.prosoundweb.com/article/damping_factor/

thanks for sharing about 'damping factor' on power amplifiers.  i got mine to share with an easy to read short article on this topic:

[king_james]

thanks for sharing about 'damping factor' on power amplifiers.  i got mine to share with an easy to read short article on this topic:

+1.  Thanks Sir Jef for this one.  I have been a QSC fanatic since the days of the MX series.  I now use the RMX series and I still salute QSC's performance especially for the highs and mids.  I'm using the RMX4050 for the lows. 

Despite of my loyalty to QSC,  I still agree that Crown amps are known to deliver better bass response since of its high damping factor.  As a matter of fact,  we compared my RMX4050 with the Crown MA2402 (only).  My RMX4050 is rated at 800 watts at 8 ohms stereo with a damping factor of >250, while the Crown MA2402 is rated at 520 watts at 8 ohms stereo with a >1000 damping factor.  Yung natest namin,  with the same set of subs, mas malakas bumayo yung sa Crown MA2402  .  "Chest thumping" bass as the old saying goes, pag Crown ang ginamit especially the MA series. Very stable pa ang Crown amps when you do parallel connections.  In paper,  4ohms ang results when you do parallel connection on two 8ohms speaker.  But speakers especially the 18 inch woofers do go really low on their impedance lalo na sa lower frequencies (based on what I read din sa ibang articles). 

Lastly,  I really agree with the article above that HIGH DAMPING FACTOR EQUALS TIGHT BASS.   

[lighttech]

while i agree that crown amps are better for subs duty, i think that its not their high damping factor that primarily give them the edge. i think it's their more robust power reserve (better power traffos and bigger psu caps). with the same speaker setup with 8meter long awg#10 cable, crown amp with DF of 1000 will have a resulting DF of 137. while QSC with DF of 250 will have a DF of 97. thus the DF disparity will not be that great. thus i think its the better psu of crown amps that gives us our  chest thumping bass we love from our crown amps.

[stoney73]

+1.  Thanks Sir Jef for this one.  I have been a QSC fanatic since the days of the MX series.  I now use the RMX series and I still salute QSC's performance especially for the highs and mids.  I'm using the RMX4050 for the lows. 

Despite of my loyalty to QSC,  I still agree that Crown amps are known to deliver better bass response since of its high damping factor.  As a matter of fact,  we compared my RMX4050 with the Crown MA2402 (only).  My RMX4050 is rated at 800 watts at 8 ohms stereo with a damping factor of >250, while the Crown MA2402 is rated at 520 watts at 8 ohms stereo with a >1000 damping factor.  Yung natest namin,  with the same set of subs, mas malakas bumayo yung sa Crown MA2402  .  "Chest thumping" bass as the old saying goes, pag Crown ang ginamit especially the MA series. Very stable pa ang Crown amps when you do parallel connections.  In paper,  4ohms ang results when you do parallel connection on two 8ohms speaker.  But speakers especially the 18 inch woofers do go really low on their impedance lalo na sa lower frequencies (based on what I read din sa ibang articles). 

Lastly,  I really agree with the article above that HIGH DAMPING FACTOR EQUALS TIGHT BASS.   

+1.  My Peavey PV3800 has a damping factor of >500 (20Hz to 1kHz), 775 watts (8 ohms) and 1300 (4 ohms).  Compared to a Crown 2400, I go a bit sad.   

[Glennox]

ACM-M21200 Professional Power Amplifier

SPECIFICATION:

Rated power bridge mode 8 Ohms    3600Watts @ 1 kHz at <0.5% T.H.D.
Rated power (2 X4 Ohms):    1800 Watts per channel @ 1 kHz at <0.5%
T.H.D. both channels driven
Rated power (2 X 8 Ohms):    1200 Watts per channel @ 1 kHz at <0.5%
T.H.D.both channels driven
Power bandwidth:    20 Hz - 20kHz; +0, -0.5 dB at rated 500 Watts 8 Ohm power
T.H.D.(2 X 4 Ohms):    <0.05%@900 Watts per channel from 20 HZ to 20 kHz
T.H.D.(2 X 8 Ohms):    <0.05%@600Watts per channel from 20 HZ to 20 kHz
Minimum load impedance:    2 Ohms
Maximum RMS voltage swing:    110Volts
Frequency response:    10 Hz - 50 kHz; +0, -3 dB at 1 Watt
Input CMRR:    >-65 dB @ 1 kHz
Rated power (1 X 4 Ohms):    1980 Watts @ 1 kHz at <0.5% T.H.D.
Rated power (1 X 8 Ohms):    1300 Watts @ 1 kHz at <0.5% T.H.D.
Phase response:    +20 to -25 from 20 Hz to 20 kHz
Input impedance:    20 k Ohms, balanced; 10k Ohms, unbalanced
Cooling:    Tow temperature dependant variable speed 120mm high output DC fans
Controls:    Two front panel attenuators, rear panel mode switch and gain select switch
Voltage gain:    0.775V, 32 dB or 26 dB
Crosstalk:    >-60 dB @ 1 kHz at rated power @ 8 Ohms
Hum and noise:    >-104 dB, "A" weighted referenced to rated power @ 8 Ohms
Slew rate:    >25V/us
Damping factor (8 Ohms):    >800:1 @ 20Hz - 1 kHz
Indicator LEDs:    2 Clip,2 signal presence, 2 active status, 2Protection
Protection:    Thermal, DC, turn-on bursts, incorrect loads
Connectors:    XLR, Speakon and Binding Post speaker output,
240/230 Volt 20 amp IEC mains
Construction:    16 ga. Steel
Dimensions:    132mm x 483 mm x 498 mm
Net weight:    36kg
Gross weight:    39kg

[/b][/b][/b]

Go ako dito!..for me mas malakas pa sa Crell CA20..ewan ko lang sa Crell CA25 . . .,,

[gribox]

mga sirs!!
how about
crown CS 1000
maganda rin ba gamitin to?


Specification   
                                CROWN              CS-550    CS-1000
Rated Power
(1Khz, THD+N=0.1%)   8 ohm stereo   2x550W   2x1000W
   4 ohm stereo   2x820W   2x1500W
   2 ohm stereo   2x1100W   2x1950W
   8 ohm bridge   1600W   3000W
   4 ohm bridge   2100W   3900W
Protection   DC Protect   1.5V
   Short circuit protect   limit the input signal, relay open, lock the amplifier
   High temperature protect   105° C
   Current inrush protect   AC 25A   AC 30A
   Input overload protect (limiter)   6V   9V
   Output overload protect   1 ohm
   Soft startup protect   2 seconds
Frequency response (1W 8 ohm stereo)   20Hz~20KHz (+/-1dB)
Sensitivity (8 ohm stereo & 1Khz)   1.0V
Mode   Stereo / Parallel / Bridge
Fan speed regulation   Two Speed
Connectors
(Each Channel)    Input connectors   Female XLR + Male XLR
   Output connectors   Binding-post + Speaker Connector   3 x Speaker Connector
Filter capability   10000uf/63Vx12   1000uf/100Vx12
Input Impedance    Balanced   20K
   Unbalanced   10K
Crosstalk (20Hz~20KHz, rated power 8 ohm)   ≥ 60db
S/N ratio (8 ohm, rated power 8 ohm)   ≥ 100db
Damping Factor   >300   >700
Intermodulation distortion   ≤ 0.5%
Total harmonic distortion
(20Hz~20KHz rated power, 8 ohm)   ≤ 0.5%
Phase response (1W, 8 ohm 20Hz~20KHz)   Within 30
Slew rate   ≥ 25V/us
Output circuitry   Class AB   Class H
Dimension (WxHxD)   482 x 88 x 437 mm   482 x 132 x 4887mm
Net Weight   19.4 Kg   42 Kg
Power Supply   220V / 50 ~ 60 Hz
[/img]

[TECHEXTREME]

Bro, matagal na yung fane 18inch ko.  I bought them before (on sale) Php 10000 each at JB.  They sounded ok except when the coil gets busted, there are no parts available. 

Check this out http://talk.philmusic.com/board/index.php/topic,163602.25.html

gud day sir, kami na po ang bagong supplier ng fane, kumpleto po teyo sa support if you need.

[edelprince1078]

Gamit ko sa sub CROWN CS1300 na china, ok naman sya 2 years ko na gamit sya, 4 ohms load ko per channel sa subscope......mura lang around 30k lng......sa raon....
kapag speaker cabs o box kailangan nyo un mga taga dito sa south luzon try nyo pagawa kay rey maleon RMC ng candelaria quezon, sabhihn nyo lng kung ano gusto nyo box type at may mga sukat na sya..

[my_legacy]

ako am using Tasso i12 for quite long time now,pinag compare ko yun qsc-ex4000 ko, Crell CA16, Sound standard MA3600 at Soundpower A10, iba talaga ang lakas at quality na binibgay ng amp.kahit 8ohms load at 4 ohms load ok lang sa kanya.

1,500 watts sa 8ohms
2,400 watts sa 4ohms
4,800 watts sa Bridge

Heres the link http://www.tassoaudio.com/product.asp?classid=46&depth=1&rootid=6&parentid=

[Leonart]

ako am using Tasso i12 for quite long time now,pinag compare ko yun qsc-ex4000 ko, Crell CA16, Sound standard MA3600 at Soundpower A10, iba talaga ang lakas at quality na binibgay ng amp.kahit 8ohms load at 4 ohms load ok lang sa kanya.

1,500 watts sa 8ohms
2,400 watts sa 4ohms
4,800 watts sa Bridge

Heres the link http://www.tassoaudio.com/product.asp?classid=46&depth=1&rootid=6&parentid=

      CRELL CA16
# 1000W 8ohms stereo power
# 1800W 4ohms stereo power
# 3000W 8ohms bridge power

QSC EX 4000
# 800W 8ohms stereo power
# 1100W 4ohms stereo power
# 2400W 8ohms Mono bridge power

Parang hindi naman comparable ang wattage ng CRELL CA16 at QSX EX4000 sa Tasso i12 dahil ang layo ng wattage ng bawat isa sir eh.  CRELL CA25 ang Pangtapat diyan sa Tasso i12   

[mackie]

Here is what Im using FP 13000 driving my 186s with SD18EL: 
2350w RMS/ch at 8ohms, max rail voltage 195v, 8 steps output voltage selectable via dip switch with original Onsemi transistors

[my_legacy]

      CRELL CA16
# 1000W 8ohms stereo power
# 1800W 4ohms stereo power
# 3000W 8ohms bridge power

QSC EX 4000
# 800W 8ohms stereo power
# 1100W 4ohms stereo power
# 2400W 8ohms Mono bridge power

Parang hindi naman comparable ang wattage ng CRELL CA16 at QSX EX4000 sa Tasso i12 dahil ang layo ng wattage ng bawat isa sir eh.  CRELL CA25 ang Pangtapat diyan sa Tasso i12   

Actually what am pointing out here is, going back to the orig question what is the best amplifier for sub woofer, my answer is just base on my observation with regards to my 4 power amp that I used before for subwoofer, Tasso i12 is much better actually its not only the wattages that matter...May gawa na speaker na ok sa kanya ang mababang wattage lang pag kinargahan mo ng mataas na wattage nabubulunan. Hindi lang pataasan ng wattage ang labanan dyan kundi kung match ba ang speaker mo sa amp at kung anong klase ng makina meron ang power amp mo na pangda drive sa sub.peace

[eirol_99]

Here is what Im using FP 13000 driving my 186s with SD18EL: 
2350w RMS/ch at 8ohms, max rail voltage 195v, 8 steps output voltage selectable via dip switch with original Onsemi transistors

magkano kuha mo sa amp mo sir?

[gieforce]

+1 sa Lab Gruppen AMPS...