2. amps-preamps
  3. 176422-76351

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
kuribo
524 posts
 

@donnylovely 

 

Your GaN measures poorly compared to Hypex, Purifi, Orchard, etc. That's a fact. You say the GaN sounds great, that's just your opinion. I know people who think their computer speakers sound great. So what. Opinions mean nothing. Try again.

donnylovely
105 posts
 

Which specific measurements are worse? The gan 1 doesn’t have overheating problems like 2 of those you have listed. Orchard is also a gan amp BTW. 

ricevs
1,543 posts
 

On one hand the "measurements are everything" people (Kuribo, ASR people) say that all amps sound the same......so don't listen to them.  On the other hand they love low distortion measurements.....so they say buy the ones with best measurements (that they like).

Pretty silly way to get a great SOUNDING system.  Just trust the nerds....they are always right. Please no not listen for yourself and choose the one that sounds best to you.  Two people on this thread prefer the GaN 1 to their Purifi amps..........but what do they know!?!.....they just did listening comparison tests in their system......they did not measure.  listening tests mean nothing....the only thing that matters is how it measures......everyone knows this!......ha ha.

Poor anti tweak, anti listening objectivists.....they have nothing better to do but bother people who want good sound.......and who listen.

BTW, my computer Altec speakers sound great.....paid $29 at Fry's for them years ago.....powered....little woofer on floor...amazing sound.  Seriously.  Not as good as my big rig......but makes me laugh, cry and dance with delight.  May you all be merry this season and every day of the year.  Every day is Christmas.....every day is your Birthday......celebrate good times, come on!

donnylovely
105 posts
 

@ricevs 100% agree.

They’re too scared to actually listen to it. What if they actually like it? Their brain might melt.

 

It’s returnable, idk what that kid has to lose. If he bought it, then he might actually know what he was taking about. He does seem oddly infatuated with it for not having listened to it. 

sirnui
82 posts
 

Let the good times roll!  I just put an order for the Gan 1.  I will see if it can replace 10K+ worth of gear and cables.  My current streamer is a bluesound node 2i powered by an LPS.  I currently use a Shunyata Omega Clock 75 digital cable between the node 2i and my DAC.  I will also test with a HoloAudio Red streamer and an LKS DDC when they arrive.

My system is already on a Giandel inverter and battery thanks to ricevs.  I'm currently using a Puritan PSM 136 power conditioner but I'm also expecting a Shunyata Typhon T2 conditioner in a few weeks. The T2 has two outlets.  If I simplify the system down to the Gan 1 and a streamer then just the T2 would be perfect and simple.

If I end up selling my DAC and amp, that can easily fund purchasing a Grimm MU1 streamer which may be the ultimate mate with the Gan 1.  The MU1's specialty is 176.4/192KHz over SPDIF.  The MU1 was my former streamer. 

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