Arendal 1723 towers with purifi 9040? Or NAD C298?

[Paapaa]

Hi

I am new on this field but have searched so many hours information...

Speakers:
-Arendal 1723 Tower THX
Tower 1723 specs
Tower 1723 review
-Recommended amplifier
Up to 500W RMS @ 4ohm
"Arendal specifies this to be a 4-ohm nominal load, and our measurements would corroborate that. The minimum occurs at port tuning, just above 30Hz, and it touches 2.8 ohms. Such a low impedance minimum might sound tough, but it happens at a frequency that is seldom used in normal content, so I don’t regard this electrical load as particularly hard, although these speakers will be a tough load on cheap amps"

NAD C298 1865 €
Review on ASR
Low distortion and 378w 4ohm per ch

The Arendals are power hungry. I have found only peak power data for:
AUDIOPHONICS 1ET9040BA 3000 €

Everywhere is the 1khz peak..i rather have the 20hz-20khz RSM with low distortion.

Is the Audiophonics amp able to give how much comparible, low distortion? watts and power between 20hz-20khz?

9040 much more better (output current 40A) than the NAD
for the Arendal 1723 Towers?

Br,
Kai

 

[Old_School_Brad]

Please notice that the ASR tests are performed in a non-continuous regime, lasting between 2 to 5 seconds.

When comparing the values below with the ratings provided in NAD's manual, the ASR test results correspond with the IHF dynamic power figures stated by NAD. This indicates that the "Max Power" result from the ASR test of the NAD C298 is more indicative of burst testing rather than continuous testing.

For your reference, the CEA-2006/490A protocol used to indicate "Peak Power" involves a duration of 1 ms at a frequency of 1 kHz.

Spoiler: ASR test results NAD C298

Spoiler: NAD Specifications

 

[Paapaa]

Please notice that the ASR tests are performed in a non-continuous regime, lasting between 2 to 5 seconds.

When comparing the values below with the ratings provided in NAD's manual, the ASR test results correspond with the IHF dynamic power figures stated by NAD. This indicates that the "Max Power" result from the ASR test of the NAD C298 is more indicative of burst testing rather than continuous testing.

For your reference, the CEA-2006/490A protocol used to indicate "Peak Power" involves a duration of 1 ms at a frequency of 1 kHz.

Thank you Why all the power marketing about 750w 4ohm when in test clipping happens much more earlier, at much lower power levels?:

 

[Old_School_Brad]

Thank you Why all the power marketing about 750w 4ohm when in test clipping happens much more earlier, at much lower power levels?:

View attachment 422254

It likely refers to the peak power in bridge mode. Please refer to the excerpt from the NAD manual in my previous comment.

 

[Paapaa]

It likely refers to the peak power in bridge mode. Please refer to the excerpt from the NAD manual in my previous comment.

That picture and clipping numbers are from 9040, not from the NAD. See:

https://www.stereophile.com/content...9040ba-monoblock-power-amplifier-measurements

 

[MaxwellsEq]

That picture and clipping numbers are from 9040, not from the NAD. See:

https://www.stereophile.com/content...9040ba-monoblock-power-amplifier-measurements

Faulty module. Retest due soon.

Buckeye Purifi Eigentakt 1ET9040BA monoblock power amplifier Stereophile Measurements

This is an interesting review - https://www.stereophile.com/content/buckeye-purifi-eigentakt-1et9040ba-monoblock-power-amplifier-measurements and we can see that the amp did not meet the datasheet specs. First, I would like to comment on CCIF IMD 19+20kHz result: @John Atkinson measured this...

audiosciencereview.com

 

[delta76]

Tower speakers in general are pretty sensitive. Anything north of 90dB and I would not worry about power of the amp

 

[Paapaa]

Seems NAD C298 1865€
price-power ratio is not so good as:
2 x NCx500 cores 1139€
+2 x 600w 4ohm
+price
-only 1 power source

and 2 x 1ET9040BA 2900€
- only a bit more 2 x 750w 4ohm
-price
+2 power source
is overkill for Arendal 1723 THX?

Woofer 4 x 8″
Sensitivity 92dB / 2.83V / 1m
Recommended amplifier
Up to 500W RMS @ 4ohm

 

[delta76]

Any reasonable AVR (i.e putting around 100wpc) will be driving your Arendal nicely). You certainly do not need those 600w+ mono. If it were me, a Hypex 502MP based amp will be more than enough. If I am feeling rich then a NCx500 stereo, or a purifi based amp is already overkill.

If you have the money to spend, then go for whatever you like. But don't expect them to make the difference.

 

[Snoopy]

Any reasonable AVR (i.e putting around 100wpc) will be driving your Arendal nicely). You certainly do not need those 600w+ mono. If it were me, a Hypex 502MP based amp will be more than enough. If I am feeling rich then a NCx500 stereo, or a purifi based amp is already overkill.

If you have the money to spend, then go for whatever you like. But don't expect them to make the difference.

I wondered already about those 500-700 watt class D mono amps. Who could possibly need that … 100 watt A/B used to be a „monster amp“ for a long time and most people where probably doing fine with 40-50 watts amp .. my A/B amp has like 80 watt in 8 ohm and that’s already overkill with DSP for room correction.

 

[Golfx]

Hi

I am new on this field but have searched so many hours information...

Speakers:
-Arendal 1723 Tower THX
Tower 1723 specs
Tower 1723 review
-Recommended amplifier
Up to 500W RMS @ 4ohm
"Arendal specifies this to be a 4-ohm nominal load, and our measurements would corroborate that. The minimum occurs at port tuning, just above 30Hz, and it touches 2.8 ohms. Such a low impedance minimum might sound tough, but it happens at a frequency that is seldom used in normal content, so I don’t regard this electrical load as particularly hard, although these speakers will be a tough load on cheap amps"

NAD C298 1865 €
Review on ASR
Low distortion and 378w 4ohm per ch

The Arendals are power hungry. I have found only peak power data for:
AUDIOPHONICS 1ET9040BA 3000 €

Everywhere is the 1khz peak..i rather have the 20hz-20khz RSM with low distortion.

Is the Audiophonics amp able to give how much comparible, low distortion? watts and power between 20hz-20khz?

9040 much more better (output current 40A) than the NAD
for the Arendal 1723 Towers?

Br,
Kai

I would read reviews/complaints regarding the companies NAD and Audiophonis’ customer service. There are other suppliers of Hypex and Purifi amps. Where are you located? Nord Audio in England and Buckeye here in the US offer excellent builds with praised customer service. I would look at the Ncorex 500 as well. You do not need 750w—400 is well above any headroom needed.

 

[Old_School_Brad]

I wondered already about those 500-700 watt class D mono amps. Who could possibly need that … 100 watt A/B used to be a „monster amp“ for a long time and most people where probably doing fine with 40-50 watts amp .. my A/B amp has like 80 watt in 8 ohm and that’s already overkill with DSP for room correction.

The testing regime has generally shifted toward bursts, and I think it's important to be careful with broad statements or conclusions. Each case of claimed rated power should ideally be examined individually to see which ratings are relevant for comparison. This is especially important given the variations in testing standards.
For instance, that 100 W amplifier you mention might actually be more powerful than a modern 400 W model.

 

[Paapaa]

I would read reviews/complaints regarding the companies NAD and Audiophonis’ customer service. There are other suppliers of Hypex and Purifi amps. Where are you located? Nord Audio in England and Buckeye here in the US offer excellent builds with praised customer service. I would look at the Ncorex 500 as well. You do not need 750w—400 is well above any headroom needed.

I am in Europe, Finland. Ordered Purifi 9040 from the Apollonaudio.com