To celebrate the holiday season, Apos Audio is giving away a Topping A90. This is Topping’s current flagship amplifier retailing for $499 USD, and the 2nd best-measuring AMP (SNR) on amirm’s Audio Science Review portfolio.
You can enter the giveaway hereand see amirm’s review here. Best of luck to all entrants!
Specs :
Outputs: 4pin XLR, 4.4mm Balanced, 6.35mm Single Ended ports
NFCA Modules (Nested Feedback Composite Amplifier
Ultra-Low Noise of 0.2uV
Dynamic Range of 145dB
Can drive sensitive IEMs to power demanding headphones
Pre-Amp Functionality
Amp and Pre-Amp performance numbers provided in the images
Topping has been hitting it out of the park with their latest releases that piggybacked on their very impressive NFCA amp modules that enable excellent measurable performance. Most impressively perhaps is that the company has transplanted this technology into their affordable offerings; we recently took a look at the entry-level L30 and found it to be one of the most competitive designs on the market in its price point. What it lacked was balanced output, input flexibility and, to some extent, soundstage expansion.
The new A50s look to address this, the successor to the A50 and, as one would expect, an all-around improvement at the same price point. It brings a higher 143dB SNR as opposed to the A50’s 123dB, and THD of just 0.0007% down from 0.004%. Implementing Topping’s renowned NFCA amp modules as seen on the flagship A90 and more recent L30, the A50s offers 3.5W x2 into a 32-ohm load, leaving plenty of headroom for high-impedance headphones.
In addition, it offers the same 0.1-ohm impedance and < 0.3uVrms noise floor of the L30, promising a black background and linear signature on even the most sensitive low-impedance multi-driver earphones. The A50s is also a balanced design with 4.4mm output in addition to a traditional 1/4″ single-ended output. It doesn’t support XLR in any manifestation, however.
The A50s is shaping up to be another promising offering from the company and will be available soon at $199 USD from Apos Audio. As always, look forward to a full in-depth review on THL soon!
