What makes a good DAC?
Digital music with an analogue soul.
A digital-to-analogue converter (DAC) converts digital music data into analogue signals – the basis for music from a streamer, computer or CD transport to be heard through an amplifier and loudspeakers or headphones. High-quality DACs offer superior sound quality, low noise and precise signal processing – well above the level of many built-in solutions.
Whether smartphone, laptop or television: every digital device contains a converter. Often, however, it is just one small chip among many, squeezed into a tiny space on a tight budget. An external DAC gives conversion the space, the power supply and the care it deserves.
How to recognise a good DAC
A clean clock, a good analogue stage and a quiet power supply matter more than the converter chip alone.
USB, Toslink, coaxial and AES/EBU connect computers, streamers, CD transports and televisions.
Depending on the model, our DACs play PCM, DSD and MQA in high resolution.
Carefully selected models with a genuine focus on sound, plus help integrating them into your system.
How a digital-to-analogue converter works
Digital music consists of numbers. On a CD, the music signal is sampled 44,100 times per second and each sample is stored with 16 bits – that’s 65,536 possible volume steps. Hi-res recordings use 24 bits and 96 or 192 kHz, giving even finer resolution.
The DAC turns this sequence of numbers back into a continuous electrical voltage, which amplifiers and loudspeakers turn into music. How well this succeeds determines the sense of space, the tonal colours and the calm of the sound image. Three building blocks work together:
Every sample must be converted at exactly the right moment. Fluctuations in timing – known as jitter – blur fine detail and spatial imaging.
The converter chip and digital filter reconstruct the signal from the samples. Their tuning shapes the impulse response – and therefore how natural attacks sound.
After the chip, the signal is filtered and amplified. This output stage and its power supply largely determine how low in noise, powerful and rich in tonal colour a DAC sounds.
What makes a good DAC
A good DAC is more than the sum of its spec-sheet figures. These features decide how it sounds:
| Feature | What matters | What you hear |
|---|---|---|
| Conversion principle | Most DACs use delta-sigma chips; some use R2R resistor ladders or their own FPGA solutions | Different sonic characters – from high-resolution and precise to especially colourful and flowing |
| Clocking & jitter | Precise crystal oscillators, asynchronous USB and reclocking | Stable soundstage, clear imaging, fine detail |
| Digital filter | Tuning of the reconstruction filter, switchable on many models | Impulse response: how crisp an attack is and how airy the treble sounds |
| Analogue output stage | Discrete or built with high-quality components, sometimes balanced (XLR) | Tonal colours, dynamics and resolution |
| Power supply | Linear instead of simple switch-mode power supply, separate supplies for digital and analogue sections | A blacker background, more calm and authority |
| Galvanic isolation | Electrically decouples the DAC from the computer or streamer | Less noise from the source, no hum via USB |
Good to know: figures such as “32 bit/768 kHz” describe which formats a DAC accepts – not how good it sounds. Two DACs with the same chip can sound very different, because clock, analogue stage and power supply make the difference.
Our DACs – for every application
Which DAC suits you depends mainly on your sources and your system. In this category you’ll find four types:
For connecting to PC, Mac and streamer. Ideal if your music collection is digital or you listen via streaming services – from compact desktop converters to full-size hi-fi components.
For CD players, CD transports and other digital sources with coaxial or Toslink output. This gives even a trusted CD player a sonic upgrade.
With built-in volume control for compact systems: connected directly to a power amplifier or active loudspeakers, often with additional analogue inputs.
For DSD, PCM and MQA up to 32 bit/768 kHz – for hi-res downloads, high-resolution streaming and DSD files.
Digital connections at a glance
Which input is right depends on your source. The overview shows typical values – the exact options are listed in each product description.
| Connection | Typical sources | Resolution (typical) | Special feature |
|---|---|---|---|
| USB | PC, Mac, streamer, smartphone | up to 32 bit/768 kHz, native DSD | Asynchronous USB: the DAC sets the clock itself |
| Toslink (optical) | Television, games console, CD player | usually up to 24 bit/96 kHz | Optical fibre – fully electrically isolated, no ground loops |
| Coaxial (S/PDIF) | CD transport, CD player, streamer | up to 24 bit/192 kHz | RCA connector with 75-ohm digital cable, widespread in hi-fi |
| AES/EBU | High-quality transports and streamers, studio equipment | up to 24 bit/192 kHz | Balanced via XLR at 110 ohms – robust against interference, even with longer cables |
Why an external DAC is worth it
An external DAC as a rule sounds audibly better than the converters built into computers, televisions or basic streamers. There, the converter shares space and power supply with processors, fans and wireless modules – a restless environment for sensitive signals.
A separate converter brings precise clocking with low jitter, a clean power supply and a well-designed analogue stage. Added to this is flexibility: your hi-fi chain stays modular and can be expanded step by step. If you change the source, the DAC stays – and vice versa.
Via USB, Toslink, coaxial and AES/EBU, you connect computer, streamer, CD transport and television to a single device.
We stock converters with a genuine focus on sound – not spec-sheet records for their own sake.
We help you integrate the DAC into your system to match your source, amplifier and cables.
For our models, we give you recommendations based on practical experience.
Frequently asked questions about DACs
What does a DAC do?
A DAC (digital-to-analogue converter) turns digital music data from a computer, streamer or CD transport into an analogue signal that an amplifier or headphones can reproduce. Its quality largely determines how natural, spacious and detailed digital music sounds.
Do I need an external DAC if my amplifier already has one built in?
Not necessarily. An external DAC is particularly worthwhile if the built-in converter is of simple design, if you’re missing connections or formats, or if you want to upgrade conversion in a targeted way. We’ll gladly advise you on whether the step is worthwhile in your system.
What do figures such as 24 bit/192 kHz or 32 bit/768 kHz mean?
The bit depth describes how finely volume steps are resolved; the kilohertz figure how often the signal is sampled per second. CD works at 16 bit/44.1 kHz, hi-res recordings usually at 24 bit and 96 or 192 kHz. Higher values indicate which files a DAC can process – on their own, they say little about its sound.
What is DSD?
DSD (Direct Stream Digital) is the format of the SACD. Instead of many bits, it works with a single bit and a very high sampling rate of 2.8 MHz (DSD64) or a multiple thereof. DSD-capable DACs play such files natively or via DoP over USB.
What is jitter?
Jitter is tiny timing fluctuations in the clock used to convert the samples. It can veil spatial imaging and fine detail. Good DACs reduce jitter with precise oscillators, asynchronous USB and their own clock processing.
Which digital connection is best?
That depends on the source and the DAC. USB offers the highest resolutions and DSD, coaxial and AES/EBU are proven in hi-fi, and Toslink isolates devices electrically and suits televisions well. It is often worth comparing several inputs in your own system.
When does a DAC with preamplifier make sense?
If you listen exclusively to digital sources and want a compact system. A DAC/preamplifier controls the volume itself and can be connected directly to a power amplifier or active loudspeakers – no separate preamplifier needed.
Can I use a DAC with my television?
Yes, if the television has a digital audio output, usually Toslink (optical). Set the output in the menu to PCM or stereo, as most hi-fi DACs do not process multichannel formats such as Dolby Digital.
Finding the right DAC
Whether a compact USB DAC for the desk or a reference converter for a large system: at Klangheimat you’ll find high-quality DACs that make digital music sound the way it was meant to. Not sure which model suits your system? Get in touch – we’ll be happy to advise you.
Buy a high-quality DAC from Klangheimat now – for digital music with an analogue soul.
