FiiO KA13 Dual CS43131 vs Fosi Audio T20 Bluetooth
Every tracked fact about the two, side by side - prices, history lows, ratings. No verdict: which one to buy is the visitor's decision, always.
FiiO KA13 Dual CS43131 DACs Mini Desktop-Class Portable Headphone Amplifier - Black
FiiO
Out of stock at every tracked store
Lowest on record ₹7,227 on Friday, 16th Oct, 2026
Full prices & history
Fosi Audio T20 Bluetooth Tube Amplifier
fosi
Lowest on record ₹7,235 on Thursday, 22nd Oct, 2026
★★★★★ 4.8 4.8 · 6 reviews
Full prices & history
What is being compared
Both sides are DACs / headphone amplifiers. The rows below are the facts each store publishes for this shelf - converter chip, output power, inputs, balanced output and digital formats. A dash means the listing does not state that spec.
Spec
FiiO
fosi
Form factor
Desktop
—
DAC chip
CS43131
—
Type
DAC & amp combo
Amplifier
Price over the last 30 days
Daily lowest price across every tracked store, from the site's own price history. The line is one product's own range - the two cards are not drawn to a shared scale.
FiiO KA13 Dual CS43131 DACs Mini Desktop-Class Portable Headphone Amplifier - Black
In stock at 0 tracked stores
Fosi Audio T20 Bluetooth Tube Amplifier
at its 30-day median
Lowest on record ₹7,235 on Thursday, 22nd Oct, 2026
In stock at 1 tracked store
Price gap right now
n/a
Both sides need a tracked offer to compare.
Stores with it in stock
0 vs 1
Active stores carrying each one right now - more stores usually means easier replacement and a steadier price.
The decision, factually
Cheaper right now
Fosi Audio T20 Bluetooth Tube Amplifier
Lowest current price across all tracked stores.
Deepest discount ever seen
FiiO KA13 Dual CS43131 DACs Mini Desktop-Class Portable Headphone Amplifier - Black
From each product's own recorded price history.
This page reports facts and expresses no opinion on which to purchase.