Buckeye Amps: Purifi Mono, 2ch, and 3ch Official Thread

[Buckeye Amps]

Will there be a 9040 preorder list? I’ll be in for a mono block.

Yes. Orders will go live once a confirmed eta is established on my end for manufacturing of the input boards.

 

[amper42]

Yes. Orders will go live once a confirmed eta is established on my end for manufacturing of the input boards.

Will Buckeye use the OPA1656 with these new input boards?
SpeakOn connectors?
Hypex SMPS1200A180 power supply?
Any idea what the energy use while idle might be?
Price?

 

[Buckeye Amps]

Will Buckeye use the OPA1656 with these new input boards?
SpeakOn connectors?
Hypex SMPS1200A180 power supply?
Any idea what the energy use while idle might be?
Price?

- OPA1612
- speakON only for rackmount case
- Hypex SMPS1200A100 standard, Micro Audio SMPS upgrqde available
- TBD for idle wattage
- likely $1150

 

[amper42]

Have you considered mounting the OPA on a socket so it can be changed easily if desired?

See:

Audiophonics HPA-DM750ET : Proprietary interface "Buffer" board​

One Texas Instrument OPA1656IDR OPA per channel is used. These are very low distortion AOPs offering the greatest transparency with very low THD. They are mounted on a socket allowing them to be replaced if necessary.

AUDIOPHONICS HPA-DM750ET Power Amplifier Purifi 1ET9040BA

The Audiophonics HPA-DM750ET is a Class D power amplifier featuring dual mono architecture. Integrating two Purifi 1ET9040BA amplifier modules and two independent Hypex SMPS1200A180 power supply boards,

www.audiophonics.fr

 

[Sokel]

Have you considered mounting the OPA on a socket so it can be changed easily if desired?

See:

Audiophonics HPA-DM750ET : Proprietary interface "Buffer" board​

One Texas Instrument OPA1656IDR OPA per channel is used. These are very low distortion AOPs offering the greatest transparency with very low THD. They are mounted on a socket allowing them to be replaced if necessary.

AUDIOPHONICS HPA-DM750ET Power Amplifier Purifi 1ET9040BA

The Audiophonics HPA-DM750ET is a Class D power amplifier featuring dual mono architecture. Integrating two Purifi 1ET9040BA amplifier modules and two independent Hypex SMPS1200A180 power supply boards,

www.audiophonics.fr

Replacing op-amps should void warranty normally.
It doesn't takes much for someone to put them the wrong way,or with bend feet,etc.
Let alone that the circuit is not designed and tested for different components.

 

[Buckeye Amps]

Have you considered mounting the OPA on a socket so it can be changed easily if desired?

See:

Audiophonics HPA-DM750ET : Proprietary interface "Buffer" board​

One Texas Instrument OPA1656IDR OPA per channel is used. These are very low distortion AOPs offering the greatest transparency with very low THD. They are mounted on a socket allowing them to be replaced if necessary.

AUDIOPHONICS HPA-DM750ET Power Amplifier Purifi 1ET9040BA

The Audiophonics HPA-DM750ET is a Class D power amplifier featuring dual mono architecture. Integrating two Purifi 1ET9040BA amplifier modules and two independent Hypex SMPS1200A180 power supply boards,

www.audiophonics.fr

Yes but then cost goes up and it introduces possible issues such as what Sokel pointed out.

 

[amper42]

I see the Purifi 9040BA as a niche amp that 98% of users don't need but will buy because they want it anyway. So when it's twice as expensive an option as the Purifi 1ET400A and still doesn't include the Bruno preferred OPA1656 it's possible sales could be smaller? If I was going to buy into 9040BA, I would get one with the OPA1656 from Boxem or Audiophonics should Buckeye not support that configuration. Pretty much none of us need it. But if someone is going to drop 2K+ for 9040BA stereo config they will look for the exact configuration they want.

 

[jruser]

- OPA1612
- speakON only for rackmount case
- Hypex SMPS1200A100 standard, Micro Audio SMPS upgrqde available
- TBD for idle wattage
- likely $1150

$1150 for mono? What’s your guess for stereo?

 

[catastrofe]

I see the Purifi 9040BA as a niche amp that 98% of users don't need but will buy because they want it anyway. So when it's twice as expensive an option as the Purifi 1ET400A and still doesn't include the Bruno preferred OPA1656 it's possible sales could be smaller? If I was going to buy into 9040BA, I would get one with the OPA1656 from Boxem or Audiophonics should Buckeye not support that configuration. Pretty much none of us need it. But if someone is going to drop 2K+ for 9040BA stereo config they will look for the exact configuration they want.

Why not build your own. Then you'll have the exact configuration you want.

 

[Buckeye Amps]

I see the Purifi 9040BA as a niche amp that 98% of users don't need but will buy because they want it anyway. So when it's twice as expensive an option as the Purifi 1ET400A and still doesn't include the Bruno preferred OPA1656 it's possible sales could be smaller? If I was going to buy into 9040BA, I would get one with the OPA1656 from Boxem or Audiophonics should Buckeye not support that configuration. Pretty much none of us need it. But if someone is going to drop 2K+ for 9040BA stereo config they will look for the exact configuration they want.

Which is perfectly fine. I've always said if what we offer doesn't meet ones needs there are others out there who may offer what is wanted, albeit for more money usually. If spending more for an inaudible difference is preferred, that is a choice the consumer can make.

 

[Buckeye Amps]

$1150 for mono? What’s your guess for stereo?

At this time only offering a mono config

 

[NTK]

Have you considered mounting the OPA on a socket so it can be changed easily if desired?

See:

Audiophonics HPA-DM750ET : Proprietary interface "Buffer" board​

One Texas Instrument OPA1656IDR OPA per channel is used. These are very low distortion AOPs offering the greatest transparency with very low THD. They are mounted on a socket allowing them to be replaced if necessary.

AUDIOPHONICS HPA-DM750ET Power Amplifier Purifi 1ET9040BA

The Audiophonics HPA-DM750ET is a Class D power amplifier featuring dual mono architecture. Integrating two Purifi 1ET9040BA amplifier modules and two independent Hypex SMPS1200A180 power supply boards,

www.audiophonics.fr

If you take a look at the TI op amp datasheets, they all recommend placing the associated passive components close to the op amps, in particular the low ESR ceramic bypass capacitors. When you change the op amps from soldered to the PCB to socket mount, you're already compromising the design, however minor the effects may be.

 

[jruser]

Are the dimensions on the site for the case itself? Or do they include the binding post sticking out?

 

[Buckeye Amps]

Are the dimensions on the site for the case itself? Or do they include the binding post sticking out?

For the case. Binding posts add another inch

 

[goryu]

Why not build your own. Then you'll have the exact configuration you want.

Hard to justify building your own when there are companies offering these amps for less than the cost of the parts. If the manufacturers offered the modules for the price they give the assemblers it would be a no brainer.

 

[jruser]

For the case. Binding posts add another inch

Thanks for answering my questions. I’m going to budget for one 9040 and 2x stereo ncx500’s once the 9040 launches.

 

[jruser]

- OPA1612
- speakON only for rackmount case
- Hypex SMPS1200A100 standard, Micro Audio SMPS upgrqde available
- TBD for idle wattage
- likely $1150

For budgeting purposes, what’s your guess for one with the Micro Audio upgrade?

 

[Buckeye Amps]

$1200

 

[Wavez]

I'm going to look at a used pair of the monoblocks, is there any way to tell if they do or don't have the problematic binding posts from amir's original 3 channel review?

 

[Buckeye Amps]

I'm going to look at a used pair of the monoblocks, is there any way to tell if they do or don't have the problematic binding posts from amir's original 3 channel review?

Not without opening it up or asking the owner.
And as far as usage, the steel binding posts do bot affect real world usage/audible difference.