• Welcome to ASR. There are many reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!

Multi-channel Amp,Which one you would like to own?

Which one you would like to own?

  • Total voters
    53
  • Poll closed .
john61ct said:
@3eaudio I really like the idea of a single box pushing good power to 6/8 channels

but need / want to power if from a DC source (say large LI battery bank).

Any voltage is OK, but prefer to stay under 65V.

Any suggestions besides a SW inverter?
Click to expand...
i will suggest you take our DIY amp kit to do that.
 
john61ct said:
@3eaudio I really like the idea of a single box pushing good power to 6/8 channels

but need / want to power if from a DC source (say large LI battery bank).

Any voltage is OK, but prefer to stay under 65V.

Any suggestions besides a SW inverter?
Click to expand...
Why a battery bank? Are you planning to use it in an RV?
 
pieterv1 said:
We're waiting ;)
Click to expand...
IMG_1796.jpeg


Quick thoughts


The unit is easily the smallest 8 channel Amp I have ever seen.


The banana plugs have a satisfying click to them. Also means that you have to use plugs and can’t run bare wire as far as I can see. I personally love using banana plugs but I am sure some people might not be happy about that decision. 8 pairs of banana plugs are included with the unit, please see the attached picture.


The tiny green Plastic tab to remove the plastic on the front plate is useless and ripped right off without removing the plastic.


The LEDs aren’t obnoxiously bright but all the LEDs seem to be lit up even though I am only running 4 channels currently.


Infrared thermometer shows the case to be warm to touch at 40.3 degrees after I guess it remained on all night.


Sound wise it seems brilliant. I cannot tell the difference between this and the Stereo A7 while powering my Ascilab C8B and Philharmonic BMR V2 Monitors. Admittedly I do not have golden ears. I seem to be able to raise the volume to hearing loss levels without issue. I also can’t tell any audible difference between this and the Buckeye 3 channel Purifi(2nd Gen) amp that’s used in my Home theater setup downstairs. This amp is being paired with my Marantz Cinema 60 as the processor.




If anyone needs more pictures, just let me know. IMO this is a pretty great deal considering the competition and how relatively small the unit is.


if using Auto mode, you don’t need to use the front power button. It will bypass the auto setting and power all the channel.
 

Attachments

  • IMG_1797.jpeg
    IMG_1797.jpeg
    969.1 KB · Views: 137
  • IMG_1798.jpeg
    IMG_1798.jpeg
    804 KB · Views: 145
  • IMG_1799.jpeg
    IMG_1799.jpeg
    709.2 KB · Views: 144
  • IMG_1800.jpeg
    IMG_1800.jpeg
    586.8 KB · Views: 147
  • IMG_1801.jpeg
    IMG_1801.jpeg
    504.1 KB · Views: 146
  • IMG_1802.jpeg
    IMG_1802.jpeg
    447.1 KB · Views: 144
Last edited:
monsterlag said:
View attachment 517075

Quick thoughts


The unit is easily the smallest 8 channel Amp I have ever seen.


The banana plugs have a satisfying click to them. Also means that you have to use plugs and can’t run bare wire as far as I can see.


The tiny green Plastic tab to remove the plastic on the front plate is useless and ripped right off without removing the plastic.


The LEDs aren’t obnoxiously bright but all the LEDs seem to be lit up even though I am only running 4 channels currently.


There is an Auto and 12V trigger but Auto doesn’t seem to be working as far as I can tell since the unit seems to remain on with LEDs also on. The Auto mode in my A7 Stereo Amp works very well but doesn’t seem to be the case here. Nothing in the manual indicating that I should be enabling it manually outside of the dip switch. @3eaudio


Infrared thermometer shows the case to be warm to touch at 40.3 degrees after I guess it remained on all night.


Sound wise it seems brilliant. I cannot tell the difference between this and the Stereo A7 while powering my Ascilab C8B and Philharmonic BMR V2 Monitors. Admittedly I do not have golden ears. I seem to be able to raise the volume to hearing loss levels without issue. I also can’t tell any audible difference between this and the Buckeye 3 channel Purifi(2nd Gen) amp that’s used in my Home theater setup downstairs.

If anyone needs more pictures, just let me know.
Click to expand...
any chance of getting the idle wattage & the power off/standby wattage?
thanks

wait did you say that it stays on (at idle) without a 12V trigger signal?
could it be as simple as powering it off via the front switch (where theoretically it should draw under 1 watt??) and then the 12V would activate it as expected.
In other words the front power switch is the manual on over-ride
 
jlx said:
any chance of getting the idle wattage & the power off/standby wattage?
thanks

wait did you say that it stays on (at idle) without a 12V trigger signal?
could it be as simple as powering it off via the front switch (where theoretically it should draw under 1 watt??) and then the 12V would activate it as expected.
In other words the front power switch is the manual on over-ride
Click to expand...
Yes, let me hook up smart switch and test it via home assistant.

Yup, auto mode doesn’t seem to be doing anything currently but I will try what the manufacturer recommended and try setting it to low gain and test again.
 
monsterlag said:
Sorry could you clarify? Use Low gain instead of High gain? I will try that and report back.
Click to expand...
I think for the auto/12v function to work, you should just enable power with the switch AC inlet on the back and not use the front standby button.

The logic behind the standby button seems to override the auto/12v trigger.
 
pieterv1 said:
I think for the auto/12v function to work, you should just enable power with the switch AC inlet on the back and not use the front standby button.

The logic behind the standby button seems to override the auto/12v trigger.
Click to expand...
AHHH! That worked OMG. I feel so stupid.
 
Well with that figured out I think it’s a pretty stellar product. The branding can easily be covered up if it bothers you.
 
3eaudio said:
i will suggest you take our DIY amp kit to do that.
Click to expand...
Please link to purchase sources good for US buyers. Total channel count is 7 FR +3-4 subs. Strongest power / current with PFFB is important.

Can PSUs (DC converters) be shared or does each amp board need to be individually fed power by an isolated source?
 
john61ct said:
Please link to purchase sources good for US buyers. Total channel count is 7 FR +3-4 subs. Strongest power / current with PFFB is important.

Can PSUs (DC converters) be shared or does each amp board need to be individually fed power by an isolated source?
Click to expand...
Best source would be directly from China probably - so 3E Audio's AliExpress store

3E AUDIO 260-2-29A PFFB Stereo
3E AUDIO 480-1-29A PFFB Mono

Yes you should be able to share one sufficiently powerful PSU between multiple of these boards.
 
@3eaudio Are the 25X amps available through Amazon.de? If I write "ALSOZONE" in the search bar, I cannot find them.

Are you planning to ship to Switzerland? Are you selling through Audiophonics?
 
Emiyanez said:
@3eaudio Are the 25X amps available through Amazon.de? If I write "ALSOZONE" in the search bar, I cannot find them.

Are you planning to ship to Switzerland? Are you selling through Audiophonics?
Click to expand...
PAM252:

ALSOZONE + 3eAudio PAM252 Multichannel Power Amplifier - 2-Channel Amplifier with 250W per Channel, TPA3255 PBTL, GaN & PFFB (THD 0.0003%@8Ω), Automatic Mode & Protection Functions for Home Cinema : Amazon.de: Electronics & Photo

ALSOZONE + 3eAudio PAM252 Multichannel Power Amplifier - 2-Channel Amplifier with 250W per Channel, TPA3255 PBTL, GaN & PFFB (THD 0.0003%@8Ω), Automatic Mode & Protection Functions for Home Cinema : Amazon.de: Electronics & Photo
amzn.eu

PAM254:

ALSOZONE + 3eAudio PAM254 Multichannel Power Amplifier - 4-Channel Amplifier with 250W per Channel, TPA3255 PBTL, GaN & PFFB (THD 0.0003%@8Ω), Automatic Mode & Protection Functions for Home Cinema : Amazon.de: Electronics & Photo

ALSOZONE + 3eAudio PAM254 Multichannel Power Amplifier - 4-Channel Amplifier with 250W per Channel, TPA3255 PBTL, GaN & PFFB (THD 0.0003%@8Ω), Automatic Mode & Protection Functions for Home Cinema : Amazon.de: Electronics & Photo
amzn.eu

PAM256:

ALSOZONE + 3eAudio PAM256 Multichannel Power Amplifier - 6-Channel Amplifier with 250W per Channel, TPA3255 PBTL, GaN & PFFB (THD 0.0003%@8Ω), Automatic Mode & Protection Functions for Home Cinema : Amazon.de: Electronics & Photo

ALSOZONE + 3eAudio PAM256 Multichannel Power Amplifier - 6-Channel Amplifier with 250W per Channel, TPA3255 PBTL, GaN & PFFB (THD 0.0003%@8Ω), Automatic Mode & Protection Functions for Home Cinema : Amazon.de: Electronics & Photo
amzn.eu

I have no idea if this offer includes shipping to Switzerland.
 
monsterlag said:
View attachment 517075

Quick thoughts


The unit is easily the smallest 8 channel Amp I have ever seen.


The banana plugs have a satisfying click to them. Also means that you have to use plugs and can’t run bare wire as far as I can see. I personally love using banana plugs but I am sure some people might not be happy about that decision. 8 pairs of banana plugs are included with the unit, please see the attached picture.


The tiny green Plastic tab to remove the plastic on the front plate is useless and ripped right off without removing the plastic.


The LEDs aren’t obnoxiously bright but all the LEDs seem to be lit up even though I am only running 4 channels currently.


Infrared thermometer shows the case to be warm to touch at 40.3 degrees after I guess it remained on all night.


Sound wise it seems brilliant. I cannot tell the difference between this and the Stereo A7 while powering my Ascilab C8B and Philharmonic BMR V2 Monitors. Admittedly I do not have golden ears. I seem to be able to raise the volume to hearing loss levels without issue. I also can’t tell any audible difference between this and the Buckeye 3 channel Purifi(2nd Gen) amp that’s used in my Home theater setup downstairs. This amp is being paired with my Marantz Cinema 60 as the processor.




If anyone needs more pictures, just let me know. IMO this is a pretty great deal considering the competition and how relatively small the unit is.


if using Auto mode, you don’t need to use the front power button. It will bypass the auto setting and power all the channel.
Click to expand...
Thanks for the photos!

Could you open the chassis and take some photos, including of the power supply?
 
You must log in or register to reply here.
Back
Top Bottom