Welcome Guest ( Log In | Register )

Outline · [ Standard ] · Linear+

 2 amps or 1 amp?

views
     
TSZombieSeafood
post Mar 9 2020, 03:45 PM, updated 6y ago

New Member
*
Junior Member
45 posts

Joined: Apr 2008
Hi hope ya'll bear with my noob questions.



So in the interest of balancing cost savings and sound quality, which should i choose? Running 100w rms speakers front and back

Option 1: Two (4x 60w@4ohm, AB class) amps total- one amp has 2x bridged channels to power the front components, and the other amp to run the rear speakers

OR

Option 2: Just save up and buy the more expensive and straightforward amp (4x 130w@4ohm, class d amp)


Also, is there any difference in sq between ab class and d class amps when hooked up to component speakers?
Thanks.
BelaCHAN
post Mar 9 2020, 04:00 PM

On my way
****
Junior Member
579 posts

Joined: Jun 2007
From: Subang Jaya, KL


Upgrade with the following, in order:

-Change to most expensive HU you can afford. Rear speakers will forever use HU amp output.
-Add 2 or 3 way front speakers (passive crossover), with quality cables
-Soundproof stage 1 for car (4 Doors, bonnet)
-Put in 2ch Amp for Front speakers, with quality RCA cables
-Soundproof stage 2 for car (front Floor Pan and front wheel fenders)
-add subwoofer and Class D amp at boot.
-Final soundproof for car (Boot, rear floor pan, n rear wheel fenders)
-enjoy life =D
BelaCHAN
post Mar 9 2020, 04:04 PM

On my way
****
Junior Member
579 posts

Joined: Jun 2007
From: Subang Jaya, KL


QUOTE(ZombieSeafood @ Mar 9 2020, 03:45 PM)
Hi hope ya'll bear with my noob questions.



So in the interest of balancing cost savings and sound quality, which should i choose? Running 100w rms speakers front and back

Option 1:  Two (4x 60w@4ohm, AB class) amps total- one amp has 2x bridged channels to power the front components, and the other amp to run the rear speakers

OR

Option 2: Just save up and buy the more expensive and straightforward amp (4x 130w@4ohm, class d amp)
Also, is there any difference in sq between ab class and d class amps when hooked up to component speakers?
Thanks.
*
Take Option : none of the above.

See my upgrade path in post above, and you will find NO USE for 4ch amp.

Save up for a better 2ch amp.


And yes, there is a diff between class AB and D in terms of SQ, but your HU and speakers, along with the RCA cable and speaker cable need to be of considerable quality to hear the diff (^-^)
kohchuup
post Mar 16 2020, 09:03 AM

Getting Started
**
Junior Member
193 posts

Joined: Jun 2012
QUOTE(ZombieSeafood @ Mar 9 2020, 03:45 PM)
Hi hope ya'll bear with my noob questions.



So in the interest of balancing cost savings and sound quality, which should i choose? Running 100w rms speakers front and back

Option 1:   Two (4x 60w@4ohm, AB class) amps total- one amp has 2x bridged channels to power the front components, and the other amp to run the rear speakers

OR

Option 2: Just save up and buy the more expensive and straightforward amp (4x 130w@4ohm, class d amp)
Also, is there any difference in sq between ab class and d class amps when hooked up to component speakers?
Thanks.
*
1) wait n purchase more than 100 rms amp for your front, imho take out ur rear speakers, front sufficient enuf. If u run ur system correctly,
rear passengers can hear clearly same as front passengers.

2) but if u insist non rear speakers, wait n purchase more than 4x100rms for your front n rear. u can just play with what u have now.

3) ur question about 2 or 1 amp, its depends on ur budget, ur space for the amps, most important is the amp rating, if u bridge ur amp, it will stress ur amp, the thd will increase by 10x too, so only recommend bridge for sub n not front speakers.


This is to reduce ur losses so that future no need to upgrade.

This post has been edited by kohchuup: Mar 17 2020, 08:50 AM
danny_sp15
post May 30 2020, 07:16 PM

==============
*******
Senior Member
3,045 posts

Joined: Dec 2007
From: Canterlot


since u already mention 100w front and back, im guessing u already buy 4 aftermarket speakers?

will be a waste to power the rear ones with just HU output. unless the rear still stock.

unless u listen very loud, or ur speaker somehow has very low sensitivity, 60wx4 for all speakers might be enough. no harm trying first. if not, u can just add another amp later.

im powering my 100w components with a 70w amp (bridged to get 200w). but before i bridge also, it sounds just fine. volume is lower than bridged, but sound quality i dont hear any difference.
howiechoo
post May 31 2020, 01:22 AM

Sincerely providing good music since 2004
******
Senior Member
1,919 posts

Joined: Jan 2003
From: KL


QUOTE(danny_sp15 @ May 30 2020, 07:16 PM)
since u already mention 100w front and back, im guessing u already buy 4 aftermarket speakers?

will be a waste to power the rear ones with just HU output. unless the rear still stock.

unless u listen very loud, or ur speaker somehow has very low sensitivity, 60wx4 for all speakers might be enough. no harm trying first. if not, u can just add another amp later.

im powering my 100w components with a 70w amp (bridged to get 200w). but before i bridge also, it sounds just fine. volume is lower than bridged, but sound quality i dont hear any difference.
*
What amp u use to bridge 4 become 2?
danny_sp15
post May 31 2020, 10:17 AM

==============
*******
Senior Member
3,045 posts

Joined: Dec 2007
From: Canterlot


QUOTE(howiechoo @ May 31 2020, 01:22 AM)
What amp u use to bridge 4 become 2?
*
Infinity ref704a.
craziechild
post Jun 3 2020, 07:04 PM

ICE HiFi Fanatic!
*****
Senior Member
721 posts

Joined: Mar 2006
From: Malaysia | Singapore


Why take 60x4? No 2ch option of the same amp?

Bridging... can only say good luck..

 

Change to:
| Lo-Fi Version
0.0145sec    0.22    5 queries    GZIP Disabled
Time is now: 26th November 2025 - 12:36 AM