SQ Opamp for Katana*

Shield Opamp in SD version designed for sound card Katana DAC THD Opamp. Optimilized for sound quality. After devoting few numbers of thd+n, the module gives you a sound closer to the analog.

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Allo Sparky

Dodano produkt do koszyka

In stock, shipping 24 hours!

Price 199,00 zł

Reduced price!

-20,00 zł

219,00 zł


Shield Opamp in SD version designed for Katana DAC THD Opamp. Optimilized for sound quality. After devoting few numbers of thd+n, the module gives you a sound closer to the analog.

Katana DAC

The subject of the sale is a board SQ Opamp. Katana module must be purchased separately.

What distinguishes the Katana DAC?

Katana DAC consists of three boards layered on Raspberry Pi:

  • Katana Board: contains the system ESS9038 DAC and oscillators NDK with extremely low frequency for MCLK
  • Katana Opamp Board: represents analog output phase, in which all the discrete circuits of the OP-amp is converted into analogue channels, left and right (balanced XLR and unbalanced RCA)
    • SQ: 100,5 Thd + n a weighted 1 kHz - board optimilized for sound quality. After devoting several numbers of thd+n, module gives you a sound closer to the analog
    • THD: 112,9 Thd + n weighted, 1 kHz - module does not interfere with the music. It sounds really good.
    • The difference between SQ and THD, depends on the system and your own preferences. Both versions give a very good sound.
  • Katana Micro Controller Board: it controls the functionality of the DAC with the downloaded firmware. The microcontroller receives configuration parameters for the DAC to the Raspberry via the I2C interface. It can also transmit a voltage via the integrated DC-DC converter for Opamp board.

Detailed product description is on the website of the manufacturer and in the user manual.




Posting the payment for the order on our account on a business day up to 13:00 means sending the goods on the same day!


The time of payment depends on the hours of ELIXIR session of the sender's bank and the recipient of the transfer (more information on this subject, for example on the website


The table presents available forms of delivery in Poland


Carrier and

Bank wire

by cash


Poczta Polska

terms of service

9,90 PLN17,90 PLN1-3 days

Kurier GLS

terms of service

14,90 PLN22,90 PLN

1-2 days

Paczkomaty 24/7 

terms of service

12,90 PLN-1-3 days

If the amount to pay for products exceeds 500 PLN
Delivery is for free!


  • Free delivery of orders over 500 PLN does not apply to parcels addressed outside of Poland.
  • Free delivery does not apply when changing orders.
  • The delivery period is counted in working days from the date of dispatch of the order.