Have been testing the
Fiio KA13 dongle for the past few hours.
Here are some initial impressions before burn in and detailed A/B comparisons:
- This dongle retails at $76 USD, housing
dual CS43131 DAC chips.
-
Accessories are pretty generous, it includes a USB-A to USB-C adapter, a USB-C to USB-C cable, and even a lightning to USB-C cable for our Apple users.
- I like that it has an
independent volume controller, something that even higher end dongles like the Questyle M15 do not have.
- The chassis of the dongle has a glass panel on the front, where you can see the internals, and the sides are made of metal. It weighs 18.5g, and is very
light and portable. Build is solid, no complaints here.
- Sound wise, this dongle is quite
neutralish, it doesn't overly colour the frequency response.
Timbre is quite natural without being overly sterile.
- The KA13 is quite
technical for a sub $100 dongle, good micro-detailing, imaging and superb instrument separation greets the listener. However, soundstage is on the intimate side.
- It has 3.5 mm and 3.5 mm coaxial out, with a 4.4 mm balanced port. Get this, this dongle can be toggled between a
"desktop mode" and a regular IEM mode. The former mode on balanced can output a whopping
550mW!! That's more than some DAPs can provide!
- I tested this dongle with 3 of my hardest to drive gear:
1) Final Audio E5000 (low sensitivity at 93dB/mW)
2) Sennheiser HD650 (high impedance at 300ohm)
3) Yinman 600 ohm (600 ohm impedance and 87db/mW sensitivity)
- I'm glad to report that on "desktop mode", the KA13 drives these 3 behemoths very well, even at lower volumes. When underpowered, these transducers will sound bloated and one-noted in the bass, with a lack of dynamics. The KA13 powers these tough customers quite well, almost equivalent to some desktop amps. It has to be said that most portable sources cannot drive the Yinman 600 ohm decently, so I'm quite surprised with the KA13 being able to.
- With big power, there is likely gonna be battery drain. I haven't tested extensively on power drain yet, but the regular mode can probably be used on-the-go or with a phone (with less battery usage), and you can reserve the "desktop mode" for PCs/laptops where there is a power supply and you need to drive demanding transducers.
- This dongle
doesn't hiss even with fussy high sensitivity IEMs, but it has an
output impedance of 1.7 ohms on 3.5mm and 1.8 ohm on 4.4mm. Hence, it may not be be the best pairing with fastidious low impedance IEMs such as the infamous Andromeda (based on the rule of eights).
- During usage, especially on "desktop mode", the KA13 does get slightly warm, but not scalding (unlike some other power hungry dongles).
Will do further burn in and A/B comparisons against sub $100 dongles and report back. But initial impressions are very positive. This dongle is versatile in being able to drive IEMs on-the-go (with the exception of those with very low impedance), but its selling point is the "desktop mode" which transforms it into a budget desktop source.