PecanPi -- Next Generation Raspberry Pi DAC and Streamer

[size=150]Meet the PecanPi DAC and Streamer[/size]

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Improvements over previous generation DAC include:

  • Fully linear ultra low noise power supplies
  • Re-clocking with Crystek femtosecond jitter oscillator
  • Built in HW volume control (no Volume-Clocker needed)
  • Built in high performance headphone amplifier
  • Full size XLR connectors
  • Ability to back-power the Raspberry Pi
  • Improved thermal design
  • Aluminum case available

The PecanPi Streamer is a ready to go plug and play streamer, that uses the PecanPi DAC, and will be available with the following software options:

[size=150]Preorders available:[/size]
PecanPi DAC – 224.99 – 25% off
orchardaudio.com/shop?olsPage=products/pcnp-dac

PecanPi Streamer – 399.99 – 20% off
orchardaudio.com/shop?olsPage=p … pcnp-strmr

With every preorder you will be entered into a raffle to receive our next product for free. It will be a 100W Class-D amplifier.

Will be shipping in 3 to 6 months.

Reserved for future updates.

Full tests results for the PecanDAC available here:
audiosciencereview.com/foru … ost-155559

Preorders available:

PecanPi DAC – 224.99 – 25% off
orchardaudio.com/shop?olsPage=products/pcnp-dac

PecanPi Streamer – 399.99 – 20% off
orchardaudio.com/shop?olsPage=p … pcnp-strmr

With every preorder you will be entered into a raffle to receive our next product for free. It will be a 100W Class-D amplifier.

Will be shipping in 3 to 6 months.

Cant find anything about the linear psu in your shop? Best reggards mathias

[size=150]PecanPi Implementation Details:[/size]

DAC chips:
– Dual flagship Burr-Brown PCM1794As in monaural mode
Digital HW Volume Control and Re-clocking:
– Crystek CCHD-575 oscillator – ultra low clock jitter of 82fSec
– SRC4193 for volume control
Output stage: True balanced dual different output stages
– Uses OPA1612s
– Low Noise Panasonic Resistors
– Proprietary filtering topology
Ultra low noise analog power supplies:
– TPS7A4700 (4.17uV noise) for positive op-amp power supply
– TPS7A3301 (16uV noise) for negative op-amp power supply
– TPS7A4901 (15.4uV noise) for DAC Chips
Headphone driver:
– Dual parallel OPA1622s

The linear power supplies are built into the board, see my previous post.

So the Power comes from a switching usb then gets “cleaned”?

The short answer is yes.

The DAC is powered by a 9V power supply. It takes that power supply generates all needed voltages and cleans them up using ultra-low noise linear regulators.

The DAC also generates the 5V (non linear) supply needed for the RaspberryPi through the 40 pin connector. But you can disconnect and power Pi separately if you would like.

All the performance numbers were obtained using the 9V power supply that is included with the DAC.

You are welcome to replace that 9V power supply with a linear one on your own, it uses a 2.1mm x 5.5mm connector with positive center.

Thnx for the answers. Sounds like an Nice piece

I have had multiple questions regarding volume control on the unit.

The volume control can be either through the knob on the unit or through software when you control the device remotely.

The HW volume control on the unit (knob) will be better than to the SW one. Both will sound great.

is there any support for Asus Tinkerboard S?

Not yet but there will be in the future, follow this thread:
tinkerboard-i2s-dac-compatibility-applepi-dac-t11289.html

First review / writeup on the PecanPi:
audiophilestyle.com/forums/topi … rypi-dacs/

Some quotes from the writeup:
“I know very well how the SBT and AudioEngine 5+ powered speakers sound, but even as I was being somewhat distracted by enabling this new RPi endpoint in Roon, my focus was immediately drawn to the music when I started up Jean Michel Jarre’s latest “Equinoxe Infinity” (via Tidal). It’s a new reference recording, and I immediately noticed a significant sound quality improvement. Granted the SBT is probably a better streamer than DAC, but holy cow! The stereo imaging on Flying Totems (Movement 2) was outstanding, and the bass much, much tighter. Everything was just better.”

“Thebass is huge and the imaging is precise. Way better than Ithought possible. I even forgot about wanting to add a subwoofer. My wife even commented on how great it sounded and wants me to now set up something at her office. What just happened?!?”

Here is video showing how to assemble the PecanPi DAC into optional case:
http://youtu.be/78NWQz_Itzw

I have had multiple requests to have a picture of the PecanPi Streamer with something other than a plain white background so that the size of the unit can be more easily visualized.

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Write-up by a Roon user who tried the PecanPi pre-production model:
community.roonlabs.com/t/pecanp … /63919/119

Another great review:
theaudiophileman.com/pecanpi-da … ard-audio/

“The PecanPi sits within an attractive price point and at that price it offers plenty: impressive sonic abilities being top of the list. Specifically, an attractive blend of dynamic force, rich imagery and layered detail. A bit of a bargain, then.”

and

“I then played Looking for a Home, two guys and two guitars or, more accurately, Kevin Greeninger & Dayan Kai at 24bit/192kHz. The string manipulation from the guitars was impressive as was the silence sitting behind the pair: the contrast set up a soundstage heavy with emotion from this serious song. The sense of clarity was also excellent as the PecanPi took advantage of the superior sound source file while the imagery that set the singers and their instruments on the soundstage was excellent. Even the bass-infused foot stomps from the guys, keeping a beat, were easily heard here. The sense of tonal balance allowed me to increase the gain without having my ears bitten off.”

and

“If anything, DSD output (despite the non-native processing) was the most impressive file output across the entire sound test as inherent noise was very low. Small and subtle details were able to flow easily from the rear of the mix and the 3D structure around the stereo image added layers and a busy, almost market square feel to the song which seemed packed with people and instruments. A party atmosphere, if you will. Harmonicas here, acoustic guitars there, an accordion, mandolin, 57 varieties of percussion but throughout the PecanPi allowed this detail to reach the ear unimpeded.”

Due to popular demand preorder pricing has been extended till May 31st.

PecanPi™ Streamer – 399.99 – 20% off
The Streamer is a fully assembled and ready to go out of the box. Just plug it in, and enjoy.
orchardaudio.com/shop?olsPag…s%2Fpcnp-strmr

PecanPi™ DAC – 224.99 – 25% off
Like the DIY approach? Then this is for you.
orchardaudio.com/shop?olsPage=products/pcnp-dac

Would you mind to stop spamming?
At least add a value for the community…
Thanks