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Posted (edited)

Hello everyone, 

Looking to know which is best for 5 channel power amplifier used for HT (70%) and casual stereo listening (30%) based on the below spec.

Its for a power hungry speakers which needs high power amplifier to get best out of it.  Both are very reliable brand.

Thanks in advance

Not disclosing the brand name to avoid bias.

 

Brand E:
Filter Capacitance : 40,000uF
Damping factor : >5000
Toroidal power transformer : 2.2kw
THD :    <0.001% 20-20Khz
S/N Ratio : 130 dB
Frequency Response : 3Hz - 250KHz @ 8

 

180w/Channel @8ohm all channel driven

 

Brand R:
Filter Capacitance : 12,0000uf
Damping factor: >260
Toroidal power transformer : 1.2Kw
THD : < 0.03% 20-20Khz
S/N Ratio : 116db
Frequency Response : 10Hz - 100kHz @ 8

 

200w/channel @8ohm all channel driven

Edited by SBM
Update

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Brand A looks like a better bet from the info provided.

If power output is a critical factor, why isn't that shown?

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1 minute ago, pwstereo said:

Brand A looks like a better bet from the info provided.

If power output is a critical factor, why isn't that shown?

Done. Thanks

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Posted (edited)

If you can believe the specs, Brand A is preferable, but just like power output, there's lies, damned lies and then "specifications".

 

Notwithstanding that, Brand A's specs sound a lot like an Elektra HD2 - I've got one and like my other two Elektras, it's outstanding.

Edited by Quark

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I'd still go Brand A, that power supply transformer rating makes it seem more likely that it can actually deliver something like the rated output. I've learnt on these forums that AVR receivers are prone to exagerrated output power claims.

My "Brand D" AVR has been very satisfactory and lives up to the output power claims in independant testing 🙂

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7 minutes ago, pwstereo said:

I'd still go Brand A, that power supply transformer rating makes it seem more likely that it can actually deliver something like the rated output. I've learnt on these forums that AVR receivers are prone to exagerrated output power claims.

My "Brand D" AVR has been very satisfactory and lives up to the output power claims in independant testing 🙂

Thanks 

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yep brand A....

 

i also say buying on specs is fraught with issues...

 

how companies mention specs and how measure specs is quite different especially with power output claims.

 

things like power supplies though are a dead give away of real power reserves... 

 

also how sounds for you to your liking match to speakers also something to consider... only know from demoing 

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12 minutes ago, Quark said:

If you can believe the specs, Brand A is preferable, but just like power output, there's lies, damned lies and then "specifications".

 

Notwithstanding that, Brand A's specs sound a lot like an Elektra HD2 - I've got one and like my other two Elektra's, it's outstanding.

:)

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6 hours ago, SBM said:

Brand E:

Damping factor : >5000
THD :    <0.001% 20-20Khz

180w/Channel @8ohm all channel driven

 

Brand R:
Damping factor: >260
THD : < 0.03% 20-20Khz
200w/channel @8ohm all channel driven

Read the specs with care. Brand E has an unusually large damping factor. Many manufacturers do not quote at what power they measure THD  and at which THD the watts per channel are quoted. Having seen many amp specs before, I am inclined to think that Brand R's specs are more typical than Brand E's.

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On 16/04/2020 at 5:46 PM, spottie said:

Read the specs with care. Brand E has an unusually large damping factor. Many manufacturers do not quote at what power they measure THD  and at which THD the watts per channel are quoted. Having seen many amp specs before, I am inclined to think that Brand R's specs are more typical than Brand E's.

R - Rotel

E- Elektra

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