nihtila.com
  • Home
  • Projects
    • All Devices H-DAC Modular HP Amp PSU Speakers Wee DAC
      Wee DAC

      W-DAC S 4493 – I2C controlled version of…

      December 28, 2020

      Wee DAC

      W-Input S – I2C controlled version of W-Input

      December 28, 2020

      Projects

      ADC AK5572 v1.2 available

      July 5, 2020

      Wee DAC

      JLSounds I2SoverUSB and miniDSP MCHStreamer USB-to-I2S boards with…

      April 11, 2020

      Development

      Final W-DAC 4493 development update

      February 29, 2020

      Wee DAC

      W-DAC 4493 – Very high performance compact DAC

      February 27, 2020

      Projects

      SPDIF TX – I2S to S/PDIF converter

      February 3, 2020

      Projects

      ADC AK5572 – Very high performance audio AD-converter

      February 2, 2020

      Devices

      USBHI – USB-interface for headset

      March 26, 2018

      Devices

      miniD Preamp – Tiny miniDSP-based 4-Channel Preamplifier

      January 8, 2018

      Devices

      HP Pre 2016 – DAC-preamplifier with headphone amplifier

      February 12, 2017

      Devices

      PSU Pre 2016 – External power supply for…

      February 5, 2017

      Devices

      SharcDSP – miniSHARC-based 8-Channel Digital Signal Processor

      November 24, 2014

      Devices

      Hypex UcD180 Power Amplifier

      November 19, 2014

      H-DAC

      Addon H-MCU – Microcontroller addon for H-DAC

      February 18, 2017

      H-DAC

      Addon H-Filter – Simple through-hole balanced preamplifier addon…

      February 6, 2017

      H-DAC

      Addon H-PreAmp – Preamplifier/headphone amplifier addon for H-DAC

      January 25, 2017

      H-DAC

      Addon BalOut – Balanced output addon for H-DAC

      January 16, 2017

      H-DAC

      H-DAC – High performance 192 kHz / 24-bit…

      January 15, 2017

      Modular HP Amp

      Modular HP Amp 2017

      February 4, 2018

      Modular HP Amp

      HP Buf – High-current buffered amplifier board for…

      February 4, 2018

      Modular HP Amp

      HP TPA – Simple IC amplifier board for…

      February 4, 2018

      Modular HP Amp

      HP MoBo – Modular headphone amplifier motherboard

      February 4, 2018

      PSU

      Simple PSU 3 – 3-channel linear DC power…

      February 1, 2017

      PSU

      Smart PSU 3 – 3-channel linear DC power…

      January 26, 2017

      PSU

      Dual Trafo Board – Small dual transformer board

      January 1, 2017

      Speakers

      Desktop Bass Stands with Tang Band W6-1139SIF and…

      October 18, 2018

      Wee DAC

      W-DAC S 4493 – I2C controlled version of…

      December 28, 2020

      Wee DAC

      W-Input S – I2C controlled version of W-Input

      December 28, 2020

      Wee DAC

      JLSounds I2SoverUSB and miniDSP MCHStreamer USB-to-I2S boards with…

      April 11, 2020

      Wee DAC

      Final W-DAC 4493 development update

      February 29, 2020

      Wee DAC

      W-DAC 4493 – Very high performance compact DAC

      February 27, 2020

      Wee DAC

      Wee DAC baseboards

      November 5, 2019

      Wee DAC

      Wee DAC addons – XLR output and extra…

      November 5, 2019

      Wee DAC

      W-Input – Compact digital input board

      November 5, 2019

  • Measurements
    • All Audio Measurements Benchmark
      Benchmark

      Audiolab M-DAC measurements part 2 – digital filters

      January 28, 2019

      Benchmark

      Audiolab M-DAC measurements part 1 – base performance

      October 29, 2018

      Audio Measurements

      HP Buf improvements – 500 mW into 32…

      February 21, 2018

      Audio Measurements

      OnePlus 3 volume control step size and output…

      March 27, 2017

      Audio Measurements

      Bit-perfect ASIO drivers to solve issues with Windows…

      January 16, 2017

      Audio Measurements

      LME49724 vs. OPA1632 in Addon BalOut

      January 16, 2017

      Audio Measurements

      PCM1794A left/right channel distortion difference

      January 12, 2017

      Audio Measurements

      PCM1794A output stage opamp measurements: LM4562, NE5532, and…

      January 8, 2017

      Audio Measurements

      HP Buf improvements – 500 mW into 32…

      February 21, 2018

      Audio Measurements

      OnePlus 3 volume control step size and output…

      March 27, 2017

      Audio Measurements

      Bit-perfect ASIO drivers to solve issues with Windows…

      January 16, 2017

      Audio Measurements

      LME49724 vs. OPA1632 in Addon BalOut

      January 16, 2017

      Audio Measurements

      PCM1794A left/right channel distortion difference

      January 12, 2017

      Audio Measurements

      PCM1794A output stage opamp measurements: LM4562, NE5532, and…

      January 8, 2017

      Benchmark

      Audiolab M-DAC measurements part 2 – digital filters

      January 28, 2019

      Benchmark

      Audiolab M-DAC measurements part 1 – base performance

      October 29, 2018

  • Learning
    • All Audio Theory Microcontrollers Teardown
      Audio Theory

      DAC digital filters part 2 – deeper dive…

      October 18, 2019

      Teardown

      Audiolab M-DAC teardown

      September 6, 2018

      Audio Theory

      Benefits of balanced headphones interconnection

      August 6, 2018

      Microcontrollers

      Designing Arduino-compatible board

      January 25, 2017

      Audio Theory

      Understanding audio measurements: Crosstalk

      January 8, 2017

      Audio Theory

      Understanding audio measurements: THD+N vs. amplitude and frequency

      January 8, 2017

      Audio Theory

      Understanding audio measurements: noise, SNR, and dynamic range

      January 8, 2017

      Audio Theory

      DAC digital filters and their impact in time…

      January 7, 2017

      Audio Theory

      DAC digital filters part 2 – deeper dive…

      October 18, 2019

      Audio Theory

      Benefits of balanced headphones interconnection

      August 6, 2018

      Audio Theory

      Understanding audio measurements: Crosstalk

      January 8, 2017

      Audio Theory

      Understanding audio measurements: THD+N vs. amplitude and frequency

      January 8, 2017

      Audio Theory

      Understanding audio measurements: noise, SNR, and dynamic range

      January 8, 2017

      Audio Theory

      DAC digital filters and their impact in time…

      January 7, 2017

      Microcontrollers

      Designing Arduino-compatible board

      January 25, 2017

      Teardown

      Audiolab M-DAC teardown

      September 6, 2018

  • Tips
    • Tips

      Tip 4: Building a DIY reflow oven from…

      April 8, 2020

      Tips

      Tip 3: Robust high-bandwidth passive DIY probes

      March 16, 2019

      Tips

      Tip 2: Beware of ground issues when using…

      January 5, 2019

      Tips

      Tip 1: Component check on printed paper before…

      May 3, 2018

  • General info
    • My Lab
    • My design philosophy
    • Audio fundamentals
    • Assembly instructions
    • Books, links, and articles
  • Shop
  • Contact/About
    • Contact Form
    • Newsletter subscription
    • About
nihtila.com
  • Home
  • Projects
    • All Devices H-DAC Modular HP Amp PSU Speakers Wee DAC
      Wee DAC

      W-DAC S 4493 – I2C controlled version of…

      December 28, 2020

      Wee DAC

      W-Input S – I2C controlled version of W-Input

      December 28, 2020

      Projects

      ADC AK5572 v1.2 available

      July 5, 2020

      Wee DAC

      JLSounds I2SoverUSB and miniDSP MCHStreamer USB-to-I2S boards with…

      April 11, 2020

      Development

      Final W-DAC 4493 development update

      February 29, 2020

      Wee DAC

      W-DAC 4493 – Very high performance compact DAC

      February 27, 2020

      Projects

      SPDIF TX – I2S to S/PDIF converter

      February 3, 2020

      Projects

      ADC AK5572 – Very high performance audio AD-converter

      February 2, 2020

      Devices

      USBHI – USB-interface for headset

      March 26, 2018

      Devices

      miniD Preamp – Tiny miniDSP-based 4-Channel Preamplifier

      January 8, 2018

      Devices

      HP Pre 2016 – DAC-preamplifier with headphone amplifier

      February 12, 2017

      Devices

      PSU Pre 2016 – External power supply for…

      February 5, 2017

      Devices

      SharcDSP – miniSHARC-based 8-Channel Digital Signal Processor

      November 24, 2014

      Devices

      Hypex UcD180 Power Amplifier

      November 19, 2014

      H-DAC

      Addon H-MCU – Microcontroller addon for H-DAC

      February 18, 2017

      H-DAC

      Addon H-Filter – Simple through-hole balanced preamplifier addon…

      February 6, 2017

      H-DAC

      Addon H-PreAmp – Preamplifier/headphone amplifier addon for H-DAC

      January 25, 2017

      H-DAC

      Addon BalOut – Balanced output addon for H-DAC

      January 16, 2017

      H-DAC

      H-DAC – High performance 192 kHz / 24-bit…

      January 15, 2017

      Modular HP Amp

      Modular HP Amp 2017

      February 4, 2018

      Modular HP Amp

      HP Buf – High-current buffered amplifier board for…

      February 4, 2018

      Modular HP Amp

      HP TPA – Simple IC amplifier board for…

      February 4, 2018

      Modular HP Amp

      HP MoBo – Modular headphone amplifier motherboard

      February 4, 2018

      PSU

      Simple PSU 3 – 3-channel linear DC power…

      February 1, 2017

      PSU

      Smart PSU 3 – 3-channel linear DC power…

      January 26, 2017

      PSU

      Dual Trafo Board – Small dual transformer board

      January 1, 2017

      Speakers

      Desktop Bass Stands with Tang Band W6-1139SIF and…

      October 18, 2018

      Wee DAC

      W-DAC S 4493 – I2C controlled version of…

      December 28, 2020

      Wee DAC

      W-Input S – I2C controlled version of W-Input

      December 28, 2020

      Wee DAC

      JLSounds I2SoverUSB and miniDSP MCHStreamer USB-to-I2S boards with…

      April 11, 2020

      Wee DAC

      Final W-DAC 4493 development update

      February 29, 2020

      Wee DAC

      W-DAC 4493 – Very high performance compact DAC

      February 27, 2020

      Wee DAC

      Wee DAC baseboards

      November 5, 2019

      Wee DAC

      Wee DAC addons – XLR output and extra…

      November 5, 2019

      Wee DAC

      W-Input – Compact digital input board

      November 5, 2019

  • Measurements
    • All Audio Measurements Benchmark
      Benchmark

      Audiolab M-DAC measurements part 2 – digital filters

      January 28, 2019

      Benchmark

      Audiolab M-DAC measurements part 1 – base performance

      October 29, 2018

      Audio Measurements

      HP Buf improvements – 500 mW into 32…

      February 21, 2018

      Audio Measurements

      OnePlus 3 volume control step size and output…

      March 27, 2017

      Audio Measurements

      Bit-perfect ASIO drivers to solve issues with Windows…

      January 16, 2017

      Audio Measurements

      LME49724 vs. OPA1632 in Addon BalOut

      January 16, 2017

      Audio Measurements

      PCM1794A left/right channel distortion difference

      January 12, 2017

      Audio Measurements

      PCM1794A output stage opamp measurements: LM4562, NE5532, and…

      January 8, 2017

      Audio Measurements

      HP Buf improvements – 500 mW into 32…

      February 21, 2018

      Audio Measurements

      OnePlus 3 volume control step size and output…

      March 27, 2017

      Audio Measurements

      Bit-perfect ASIO drivers to solve issues with Windows…

      January 16, 2017

      Audio Measurements

      LME49724 vs. OPA1632 in Addon BalOut

      January 16, 2017

      Audio Measurements

      PCM1794A left/right channel distortion difference

      January 12, 2017

      Audio Measurements

      PCM1794A output stage opamp measurements: LM4562, NE5532, and…

      January 8, 2017

      Benchmark

      Audiolab M-DAC measurements part 2 – digital filters

      January 28, 2019

      Benchmark

      Audiolab M-DAC measurements part 1 – base performance

      October 29, 2018

  • Learning
    • All Audio Theory Microcontrollers Teardown
      Audio Theory

      DAC digital filters part 2 – deeper dive…

      October 18, 2019

      Teardown

      Audiolab M-DAC teardown

      September 6, 2018

      Audio Theory

      Benefits of balanced headphones interconnection

      August 6, 2018

      Microcontrollers

      Designing Arduino-compatible board

      January 25, 2017

      Audio Theory

      Understanding audio measurements: Crosstalk

      January 8, 2017

      Audio Theory

      Understanding audio measurements: THD+N vs. amplitude and frequency

      January 8, 2017

      Audio Theory

      Understanding audio measurements: noise, SNR, and dynamic range

      January 8, 2017

      Audio Theory

      DAC digital filters and their impact in time…

      January 7, 2017

      Audio Theory

      DAC digital filters part 2 – deeper dive…

      October 18, 2019

      Audio Theory

      Benefits of balanced headphones interconnection

      August 6, 2018

      Audio Theory

      Understanding audio measurements: Crosstalk

      January 8, 2017

      Audio Theory

      Understanding audio measurements: THD+N vs. amplitude and frequency

      January 8, 2017

      Audio Theory

      Understanding audio measurements: noise, SNR, and dynamic range

      January 8, 2017

      Audio Theory

      DAC digital filters and their impact in time…

      January 7, 2017

      Microcontrollers

      Designing Arduino-compatible board

      January 25, 2017

      Teardown

      Audiolab M-DAC teardown

      September 6, 2018

  • Tips
    • Tips

      Tip 4: Building a DIY reflow oven from…

      April 8, 2020

      Tips

      Tip 3: Robust high-bandwidth passive DIY probes

      March 16, 2019

      Tips

      Tip 2: Beware of ground issues when using…

      January 5, 2019

      Tips

      Tip 1: Component check on printed paper before…

      May 3, 2018

  • General info
    • My Lab
    • My design philosophy
    • Audio fundamentals
    • Assembly instructions
    • Books, links, and articles
  • Shop
  • Contact/About
    • Contact Form
    • Newsletter subscription
    • About

W-DAC S 4493 – I2C controlled version of W-DAC 4493

December 28, 2020

W-Input S – I2C controlled version of W-Input

December 28, 2020

Elecrow PCB long term review

August 6, 2020

ADC AK5572 v1.2 available

July 5, 2020

JLSounds I2SoverUSB and miniDSP MCHStreamer USB-to-I2S boards with W-DAC

April 11, 2020

Tip 4: Building a DIY reflow oven from two toaster ovens and...

April 8, 2020

Final W-DAC 4493 development update

February 29, 2020

W-DAC 4493 – Very high performance compact DAC

February 27, 2020

SPDIF TX – I2S to S/PDIF converter

February 3, 2020

ADC AK5572 – Very high performance audio AD-converter

February 2, 2020

Welcome

This is my personal electronics website showcasing DIY projects, measurements, modifications, reviews, investigations, etc. Currently the focus is mainly on audio electronics. At least for now this is just a hobby although I have started selling some boards to fund future development and get at least some of the money back spent on these projects. See shop page what is available and how to buy boards.

At the moment most boards are audio. My design philosophy is very engineer-like, solid technical foundations and measurements first. I’m lucky to have access to state of the art Audio Precision measurement kit at my 9-to-5 work; therefore, I am able to provide comprehensive measurement results of my boards.

At the moment I have:

  • DACs, performance up to -115 dB THD+N and 121 dBA dynamic range
  • ADCs, performance up to -113 dB THD+N and 124 dBA dynamic range
  • Various addon and supporting boards for DACs and ADCs such as balanced outputs, I2S to S/PDIF converter, power supply baseboards and so on

I have lots of ideas what I would like to develop; however, progress is quite slow as this is just a hobby. So please bear with me. In 2021 things have got even slower, partly due to other things in life, partly because it is impossible to buy many components due to supply shortages.

Wee DAC

In 2019 the main focus was Wee DAC, a very high performance modular audio DAC. Find information about the system here, photo of an example kit below, and posts to individual boards consisting of DACs, S/PDIF receiver, input and output addons, and power supply baseboards.

Wee DAC modular DAC with several addons

Wee DAC boards

  • W-DAC S 4493 – I2C controlled version of W-DAC 4493

    December 28, 2020
    by nihtila December 28, 2020
  • W-Input S – I2C controlled version of W-Input

    December 28, 2020
    by nihtila December 28, 2020
  • JLSounds I2SoverUSB and miniDSP MCHStreamer USB-to-I2S boards with W-DAC

    April 11, 2020
    by nihtila April 11, 2020
  • W-DAC 4493 – Very high performance compact DAC

    February 27, 2020
    by nihtila February 27, 2020
  • Wee DAC baseboards

    November 5, 2019
    by nihtila November 5, 2019
  • Wee DAC addons – XLR output and extra S/PDIF inputs

    November 5, 2019
    by nihtila November 5, 2019
  • W-Input – Compact digital input board

    November 5, 2019
    by nihtila November 5, 2019
  • W-DAC 4490 – Very high performance compact DAC

    November 5, 2019
    by nihtila November 5, 2019

Other active projects

Other relatively recent projects that are not part of Wee DAC.

  • ADC AK5572 v1.2 available

    July 5, 2020
    by nihtila July 5, 2020
  • SPDIF TX – I2S to S/PDIF converter

    February 3, 2020
    by nihtila February 3, 2020
  • ADC AK5572 – Very high performance audio AD-converter

    February 2, 2020
    by nihtila February 2, 2020
  • Desktop Bass Stands with Tang Band W6-1139SIF and Linkwitz Transform

    October 18, 2018
    by nihtila October 18, 2018
  • Addon BalOut v2 – Balanced output board

    April 9, 2018
    by nihtila April 9, 2018
  • USBHI – USB-interface for headset

    March 26, 2018
    by nihtila March 26, 2018

Measurements

Measurements of specific components or devices.

Audiolab M-DAC measurements part 2 – digital filters

January 28, 2019
by nihtila January 28, 2019

Audiolab M-DAC measurements part 1 – base performance

October 29, 2018
by nihtila October 29, 2018

HP Buf improvements – 500 mW into 32 Ω headphones with 0.00015 % THD+N!

February 21, 2018
by nihtila February 21, 2018

OnePlus 3 volume control step size and output level measurements

March 27, 2017
by nihtila March 27, 2017

Bit-perfect ASIO drivers to solve issues with Windows audio quality

January 16, 2017
by nihtila January 16, 2017

LME49724 vs. OPA1632 in Addon BalOut

January 16, 2017
by nihtila January 16, 2017

PCM1794A left/right channel distortion difference

January 12, 2017
by nihtila January 12, 2017

PCM1794A output stage opamp measurements: LM4562, NE5532, and OPA2134

January 8, 2017
by nihtila January 8, 2017

Learning

Generic information sharing of theory, measurements, teardowns etc.

DAC digital filters part 2 – deeper dive into AK4490 and AK4493 filters

October 18, 2019
by nihtila October 18, 2019

Audiolab M-DAC teardown

September 6, 2018
by nihtila September 6, 2018

Benefits of balanced headphones interconnection

August 6, 2018
by nihtila August 6, 2018

Designing Arduino-compatible board

January 25, 2017
by nihtila January 25, 2017

Understanding audio measurements: Crosstalk

January 8, 2017
by nihtila January 8, 2017

Understanding audio measurements: THD+N vs. amplitude and frequency

January 8, 2017
by nihtila January 8, 2017

Understanding audio measurements: noise, SNR, and dynamic range

January 8, 2017
by nihtila January 8, 2017

DAC digital filters and their impact in time and frequency domains

January 7, 2017
by nihtila January 7, 2017

Tips

Practical tips that has come to mind that may not be so obvious and are worth sharing.

Tip 4: Building a DIY reflow oven from two toaster ovens and Controleo3 kit

April 8, 2020
by nihtila April 8, 2020

Tip 3: Robust high-bandwidth passive DIY probes

March 16, 2019
by nihtila March 16, 2019

Tip 2: Beware of ground issues when using laptop on bench

January 5, 2019
by nihtila January 5, 2019

Tip 1: Component check on printed paper before PCB order

May 3, 2018
by nihtila May 3, 2018

Inactive older projects

These are older projects I am not working on anymore. Some of them are in active daily use, some completely ditched and forgotten. I do have ideas to improve and release new versions of some of them though. One day, maybe.

  • Analog MV8-OP1 clone for Roland MV-8000/8800

    April 9, 2018
    by nihtila April 9, 2018
  • Modular HP Amp 2017

    February 4, 2018
    by nihtila February 4, 2018
  • HP Buf – High-current buffered amplifier board for HP MoBo

    February 4, 2018
    by nihtila February 4, 2018
  • HP TPA – Simple IC amplifier board for HP MoBo

    February 4, 2018
    by nihtila February 4, 2018
  • HP MoBo – Modular headphone amplifier motherboard

    February 4, 2018
    by nihtila February 4, 2018
  • miniD Preamp – Tiny miniDSP-based 4-Channel Preamplifier

    January 8, 2018
    by nihtila January 8, 2018
  • Addon H-MCU – Microcontroller addon for H-DAC

    February 18, 2017
    by nihtila February 18, 2017
  • HP Pre 2016 – DAC-preamplifier with headphone amplifier

    February 12, 2017
    by nihtila February 12, 2017
  • Addon H-Filter – Simple through-hole balanced preamplifier addon for H-DAC

    February 6, 2017
    by nihtila February 6, 2017
  • PSU Pre 2016 – External power supply for DAC-preamplifier

    February 5, 2017
    by nihtila February 5, 2017
  • Simple PSU 3 – 3-channel linear DC power supply

    February 1, 2017
    by nihtila February 1, 2017
  • Smart PSU 3 – 3-channel linear DC power supply with monitors

    January 26, 2017
    by nihtila January 26, 2017
  • Addon H-PreAmp – Preamplifier/headphone amplifier addon for H-DAC

    January 25, 2017
    by nihtila January 25, 2017
  • Addon BalOut – Balanced output addon for H-DAC

    January 16, 2017
    by nihtila January 16, 2017
  • H-DAC – High performance 192 kHz / 24-bit DAC with addon options

    January 15, 2017
    by nihtila January 15, 2017
  • Dual Trafo Board – Small dual transformer board

    January 1, 2017
    by nihtila January 1, 2017
  • SharcDSP – miniSHARC-based 8-Channel Digital Signal Processor

    November 24, 2014
    by nihtila November 24, 2014
  • Hypex UcD180 Power Amplifier

    November 19, 2014
    by nihtila November 19, 2014

Newsletter subscription

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Tweets

It's busy at my board 'store' again. Probably something to do with that most of the messages from my contact form a… https://t.co/DhnL6mxPr2

31-Mar-2021

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Made a bit shelf space in my wee lab for future kit but it's taken now 😸 (It's been quiet for months; new house la… https://t.co/KoQ3pTAmKM

28-Feb-2021

Reply Retweet Favorite
It's been a bit quieter. We moved house a month ago (I'm getting my small Hifi room!) and it's a lot of work and di… https://t.co/VmQxGyd5S5

23-Oct-2020

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Gosh this is annoying. Suggestions for UK based hosting (for dummies)? I'd need to revise my package anyway. For 2-… https://t.co/7xGpkkeYQh

18-Sep-2020

Reply Retweet Favorite
Second time in relatively short period of time that @tsohost email servers are down. Status page says only webmail… https://t.co/IqmDAM9Ccn

18-Sep-2020

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Post tags

ADC (3) Addon H-PreAmp (2) AK4490 (6) AK4493 (6) Arduino-compatible (4) audio fundamentals (4) audio measurement (5) balanced (4) balanced audio (4) board (14) crosstalk (2) DAC (16) digital filter (3) distortion (3) dynamic range (2) fft (2) H-DAC (11) headphone amplifier (6) HP Buf (4) HP MoBo (3) HP Pre 2016 (2) LM4562 (7) LME49724 (4) M-DAC (3) measurement bandwidth (2) microcontroller (5) miniDSP (3) modular (3) NE5532 (2) OPA1632 (3) OPA2134 (2) opamp comparison (2) oscilloscope (2) PCM1794A (4) PCM2707C (2) preamplifier (3) PSU (5) S/PDIF (5) SmartPSU3 (2) SNR (3) THD+N (9) USB-audio (3) volume control (3) W-DAC (5) Wee DAC (15)

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Post categories

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    • Wee DAC (15)
  • Reviews (1)
  • Tips (4)

nihtila.com?

This is my personal electronics website showcasing DIY projects, measurements, modifications, reviews, investigations, etc. Currently the focus is mainly on audio electronics.

Post archives

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Post tags

ADC (3) Addon H-PreAmp (2) AK4490 (6) AK4493 (6) Arduino-compatible (4) audio fundamentals (4) audio measurement (5) balanced (4) balanced audio (4) board (14) crosstalk (2) DAC (16) digital filter (3) distortion (3) dynamic range (2) fft (2) H-DAC (11) headphone amplifier (6) HP Buf (4) HP MoBo (3) HP Pre 2016 (2) LM4562 (7) LME49724 (4) M-DAC (3) measurement bandwidth (2) microcontroller (5) miniDSP (3) modular (3) NE5532 (2) OPA1632 (3) OPA2134 (2) opamp comparison (2) oscilloscope (2) PCM1794A (4) PCM2707C (2) preamplifier (3) PSU (5) S/PDIF (5) SmartPSU3 (2) SNR (3) THD+N (9) USB-audio (3) volume control (3) W-DAC (5) Wee DAC (15)
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@2021 - Tomi Nihtilä


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