The ddHiFi TC44Pro E2 is a 4.4mm balanced USB DAC/amp on a 9cm pure-silver shielded cable, pairing dual CS43131 DACs with dual ES9603Q amps for 250mW into 32Ω, PCM up to 32-bit/384kHz and native DSD256. It suits IEM and headphone owners with 4.4mm balanced cables who listen from a USB-C or Lightning device.
Who the ddHiFi TC44Pro E2 is for
Balanced IEMs and headphones: Two CS43131 DACs and two ES9603Q amps deliver 250mW into 32Ω through a Pentaconn 4.4mm socket from NDICs.
USB-C or Lightning devices: Choose the plug that matches your phone, tablet or computer; ddHiFi publishes one spec sheet for both versions.
Hi-res and DSD libraries: It decodes PCM up to 32-bit/384kHz and native DSD64/128/256, and the front light shows blue for PCM and green for native DSD.
Comfortable volume range: ddHiFi limits the output amplitude to 80% for listening comfort, even though the chips' nominal power is higher than the original TC44Pro's.
Skip it if: You need a 3.5mm single-ended jack: the TC44Pro E2 has a single 4.4mm balanced socket.
ddHiFi TC44Pro E2 key specs
Plug: USB-C or Lightning (choose a version), on a 9cm pure-silver shielded cable
Output: 4.4mm balanced (Pentaconn socket from NDICs)
DAC chips: CS43131 × 2
Amp chips: ES9603Q × 2
Output power: 250mW (32Ω load)
SNR / dynamic range: >125dB / >120dB (A-weighted)
THD+N: <0.0004% @1kHz
Decoding: PCM up to 32-bit/384kHz; native DSD64/DSD128/DSD256
Size and weight: 60 × 20 × 10mm body; about 20.7g
In the box: TC44Pro E2 with a tied leather rope, plus a spare 30cm leather rope
Genuine ddHiFi stock. Free shipping on every order, 45-day returns.
ddHiFi TC44Pro E2 vs similar options
vs Shanling UA4: Adds a 3.5mm output, a 0.87-inch OLED display and native DSD512; pick the TC44Pro E2 for its rated 250mW balanced into 32Ω and a Lightning plug option.
vs TANCHJIM LUNA: Also a 4.4mm-only dongle, built on dual CS43198 chips (one per channel); pick the TC44Pro E2 for dual CS43131 DACs with dual ES9603Q amps rated at 250mW into 32Ω, or its Lightning version.
Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging, and backed by our 1-year TonePier warranty and 45-day returns.
Where does my order ship from, and how long does it take?
Every order ships from our warehouse in China, with full tracking, and most orders ship within 3 business days. Shipping is free on every order; most US orders arrive within 7–15 business days and most orders to other countries within 7–20 business days — see our shipping policy for details.
What if it isn't for me?
You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.
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