Peachtree GaN 1 Beta


Before I start my post here is my current system for reference:

Auarlic Aries G1 --> Denafrips Terminator or SW1X DAC --> Audio GD HE1 XLR preamp or Sachs preamp --> various tube amps --> Cube Nenuphar Mini's w/ a pair of REL S510 subs. Cables and power conditioning commensurate with the rest of the system.

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As warmer months approach I have been looking for a cool running amp to replace my Line Magnetic LM-518 and other tube amps for a few months as they run pretty hot.

I've been interested in the GaN FET amps and just purchased a used LSA Voyager 350 Gan FET amp which I should receive in a few days. I've tried class D amps before and while they checked a lot of boxes I just didn't feel drawn in. However, I like to explore so I figured I'd try the GanFET and since the amp has zero feedback and my speakers seem to prefer amps with little or no feedback I figured it be worth checking out.

Today, Peachtree Audio sent out an email inviting users to a beta of their new Gan 1 amp. Here are some excerpts from their email:

 

What is the GaN 1?

In basic terms it is a 200 Watts-Per-Channel (WPC) Power Amplifier designed to be the sole interface between your digital audio device with a variable output, like a Bluesound NODE, and your speakers. The GaN 1 is a simple, pure and cost-effective audio solution: connect the GaN 1 to a streamer and a pair of speakers and you have an amazing Hi-Fi system. That's it...no DAC, no preamp and no input switching. The signal path from the music to your speakers is remarkably short and free of artifacts. Want to hear the intricate details in your music that have always been there, but you couldn't quite make them all out before? Then the GaN 1 is for you!

What makes the GaN 1 so special?

First and foremost is the GaN-FET amplifier module. It has several inherent advantages in a power amplifier that even the best MOS-FET designs simply cannot achieve. A GaN-FET power stage provides a precise high-power reproduction of the Class-D PWM signal with extremely high linearity. This linearity eliminates the need for ANY feedback, ultimately allowing for the best possible audio quality providing clean, clear middle and high frequencies and a tight, solid reproduction of low frequencies. GaN-FETs track the complex audio waveforms MUCH more accurately than MOS-FETs, resulting in significantly more transparent and natural sound. The difference is something even a casual listener can hear and appreciate. The GaN 1 is also designed so that it does NOT require a digital-to-analog-converter (DAC). The digital audio signal at the input directs the amplifier outputs to drive the speakers. Although DACs have continued to improve over the years, there is no DAC better than NO DAC! This concept is not new as similar devices known as "Power DACs" made quite a splash in our industry years ago. But this time around, by executing the concept with GaN-FETs, the bar is raised to an entirely new level.

Key Features at a Glance:

▪ 200 WPC state-of-the-art GaN-FET module
▪ ZERO feedback design
▪ Regulated 450-Watt power supply
▪ Coaxial S/PDIF input with native support up to 24-bit / 192kHz
▪ DAC-less design
▪ Power on/off trigger port
▪ All aluminum chassis
▪ No cooling fans

 

This sounded really interesting to me and since I have a good streamer I signed up for the amp beta only. One aspect that intrigues me is to create an extremely minimal signal path. My speakers are single driver, crossover-less design. Employing the GaN 1 will mean the system will be Auralic Aries --> GaN 1 --> Cube Nenuphar Mini's. Will that lead to a more engaging sound vs the full system? Will the Voyager GaN 350 outperform a tube amp in the full system? Who knows, should be fun to find out....

Now, I have no idea how either of these GaN FET amps will work with my speakers. The Cube Nenuphars seem to prefer amps with low damping and no negative feedback, which is more common with SET tube amps and Class A solid state amps. I'm not sure of the damping factor of the GaN FET amps, but both are Zero feedback designs, and both have way more wattage than I need. For reference, I have a 1.5 wpc 45 tube amp that sounds amazing with the Cubes, so high wattage is not required. I am interested though in what these amps will sound like compared to my tube amps, and I am particularly interested in what the streamer direct to amp Peachtree will sound like.

I am also looking to acquire a First Watt SIT-3, which is a great match with the Cubes, but now that they are no longer produced prices have gone above my current comfort level. If I can get one I will throw it into the experiment.

The Peachtree won't be shipped until sometime in June, or possibly later. In the meantime I will get the LSA Voyager in the next few days. I might even be able to get it hooked up this weekend so stay tuned, should be an interesting experiment...

abd1

Showing 19 responses by jerryg123

@ricevs and there are folks who believe Unicorns and Fairies are real. 🦄🧚‍♀️ 

Guess reading comprehension is an issue as no one is pissing on your PT GaN1. 

Just questioning the Shadetree EE doing mods to a brand-new amp.

So, enjoy your little amp that is all that matters, that you like it. Or are you having buyer remorse and need validation? 

Enjoy 

 

 

Pokémon is indeed very sad and lonely. Angry little creature. Has a crush on this Bruno guy.

Manley Laboratories has joined Bruno Putzeys’ Class D ...

I do know this, I will never buy a integrated, preamplifier or amplifier that would require internal tweaks to make it sound good. Especially if the modifier cannot measure or validate the sudo engineering behind the mods.

When I built the motor in my 68 Z28 every modification was validated with dynamic testing and measurements through data acquisition. Same with my motorcycles. 

Risk reward, I am not letting some dude void my warranty, not some shade tree modifier of audio equipment. No matter how inexpensive this setup is. No fires in my house. 

 

@arafiq I know right. Ricks credibility is diminishing by the second. 
 

Maybe Ralph is right about radiation. 

@atmasphere is right and I feel Ralph's credentials are more impressive than Rick's or others posting in this tread (myself included for sure)

Rick and others should heed Ralphs words.

My point here is you have jumped to a conclusion based on a made up story about what we do or don’t do. If you want street cred, refrain from talking about things of which you have no idea.

@donnylovely you do know that Ralph has forgotten more about this stuff than you will ever know. He has been designing and manufacturing top tier audio equipment since 1976. Why would he try a single mod by a Shadetree EE.

Go learn something Donny. 

 

Atma-Sphere

@donnylovely I am with @arafiq on this and he has made very valid points as has Ralph and others. No one is knocking the PT platform just the financial motives of one member who cannot back up his science or engineering.

Free speech and no one is violating the Agon P&P.

So did you send your PT Rick already?

The subject of the original spam post about an amplifier.

Sure what say you about this amplifier Lovely Donny?

What are your motivators for buying this fine appliance.

BTW You are one dimensional 99% of your posts are about this PT Gan1 device. Quite obsessed.

That’s okay you will get one some day.

 

@singintheblues not sure why you could not go with and Streaming DAC with volume control for this setup. This entire setup seems very cheap and using the BuleSound Node only confirms this to me. May sound good but such an entry level digital front end…