It’s almost 3 years since the first release of EtherStream network switch. During these times, I continued my research and development looking for possibilities to improve streaming services to the next level. And today is when I’m certain it’s ready for second generation.

The first generation of EtherStream and AirStream uses high precision crystal clock from NDK which is known to be famous company in Japan. I realized later that NDK clock I chose sounds a bit too analytical for my own preference and I wished some aspects in Tidal/Qobuz streaming could be better.

Before choosing Cisco CBS110-8T-D, I also tested a few other suitable network switches with intensive modification from Linksys, Netgear, Ubiquiti, and few others. I started developing new prototypes after Cisco CBS110 series was introduced as SG110 replacement.

It was harder to check micro detail, soundstage image and depth with $4-5k DAC I was using. Testing product at my client’s place helped me realize shortcomings on prototype units. After getting Esoteric K1X Grandioso, I can notice micro detail and depth better and fixed issues I found.

After comparing Tidal streaming to CD playback in Esoteric K1X Grandioso, I can see from better references where I can optimize EtherStream2 to deliver closer performance with new changes as below:

 

-Base Network Switch is changed from Cisco SG110D-08 to Cisco CBS110-8T-D
-Upgraded clock module with more suitable specifications for networked audio improving musicality
-Upgraded capacitors with new tuned value and have better specifications for lower impedance and current leakage
-Upgraded output transformer with high quality EMI/RFI reduction and vibration control sheet for router

 

Compared to original EtherStream, EtherStream2 brings fuller sound with improved balance and musicality. It also improves depth and resolution with blacker background. Micro details and bass articulation are improved with better presence. It’s significant upgrade for fraction of price increment.

 

 

AirStream2 also have the similar improvements applied after finishing EtherStream2 development. After checking market and wait for the right product to arrive, I picked ASUS RT-AX55 and apply modification with new changes as below:

 

-Base Network Switch is changed from ASUS RT-AC1300UHP to ASUS RT-AX55
-Upgraded clock module with more suitable specifications for networked audio improving musicality
-Upgraded capacitors with new tuned value and have better specifications for lower impedance and current leakage
-Upgraded firmware and configuration in router for optimal sound quality (Recommend 2.4GHz for audio 5GHz for others)
-Upgraded ethernet switch part with overhaul modification including clock module as audiophile network switch 4 port

 

Since new base model has separated 4 ports network switch and wireless router circuitry inside, AirStream2 will have modification of both network switch and wireless router with separated clock module and tuning inside. You can also use AirStream2 as audiophile network switch also.

 

And one last thing is Nikola2’s production cost has been increased a lot lately. I can no longer maintain the same initial price anymore so Nikola2’s price will be changed to $849 USD based on increased production cost as below:

 

-Ultra low noise transformer price increased
-Furutech FI-03(G) Inlet price increased
-Regulator price increased a lot
-Currency exchange rate and price of imported parts increased

 

I also have fixed cost increased as I found company Fidelizer Audio Co.,Ltd. now having to pay 15% tax and 7% vat but that I’m still absorbing that to maintain the same price as before so increased price on Nikola2 are from increased production cost alone.

 

The MSRP price of EtherStream2 is $449 USD and AirStream2 is $549 USD. During introductory period in this month, you’ll get free shipping for ordering EtherStream2 or AirStream2. Nikola2 won’t have free shipping offer but still has free shipping bundle if you order other products with Nikola2.