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Amplifying Your Voice, Shaping Our Innovation

At Fosi Audio, behind every innovation, there's a story. The birth of the ZA3 amplifier is just such a story, centered around our users. After the launch of the V3 amplifier, we gathered innumerable feedback from passionate audiophiles. They expressed a desire for us to develop an even better amplifier based on V3.

  • Input: RCA, XLR, ¼”TRS; Output: Stereo, Mono
  • SNR≥106dB; THD<0.006%; SINAD: 89dB; Frequency Response: 20Hz-20kHz (±0.1dB)
  • Rated Power Output: Stereo 180W*2 @4Ω; Mono 235W @4Ω

12V Trigger Sync Interface

Aluminum Alloy and One-Piece Molded Chassis

Logarithmic Potentiometer

Product details

Which Product is right for you?

Compare products to find the best one for your needs.

From $109.99

ZA3 Balanced Stereo Amplifier

Type
2.0 CH Amp
Amp Chip
TPA3255
MAX Power Output
2x 300W@4Ω
Input
RCA, XLR, ¼”TRS
Output
Passive SPK +Sub-out
Treble & Bass Control
No
THD+N
<0.006%
SNR
≥106dB
Terminating Impedance
2-8Ω
Power Supply
32V/5A, 48V/5A
From $109.99

V3 Mono Monoblock Power Amplifier

Type
Monoblock
Amp Chip
TPA3255
MAX Power Output
300W@4Ω
Input
RCA, XLR, ¼”TRS
Output
Speaker Output
Treble & Bass Control
No
THD+N
<0.006%
SNR
≥123dB
Terminating Impedance
2-8Ω
Power Supply
32V/5A, 48V/5A
From $79.99

BT20A Pro Bluetooth Stereo Power Amp

Type
Bluetooth 2.0 Ch Amp
Amp Chip
TPA3255
MAX Power Output
2x 300W@4Ω
Input
Bluetooth, RCA
Output
Speaker Output, Pre-Out
Treble & Bass Control
Yes
THD+N
≤ 0.005%
SNR
≥108dB
Terminating Impedance
2-8Ω
Power Supply
32V/5A, 48V/5A
From $79.99

TB10D Stereo Audio Amplifier

Type
2.0 Ch Amp
Amp Chip
TPA3255
MAX Power Output
300W x2
Input
RCA
Output
Passive Speakers
Treble & Bass Control
Yes
THD+N
≤ 0.3%
SNR
≥ 90dB
Terminating Impedance
2-8Ω
Power Supply
32V/5A, 48V/5A
From $69.99

Fosi Audio V3 Mini Stereo Amplifier

Type
2.0 Ch Amp
Amp Chip
TPA3255
MAX Power Output
2x 300W@4Ω
Input
RCA
Output
Passive Speakers, Pre-Out
Treble & Bass Control
No
THD+N
<0.003%
SNR
≥110dB
Terminating Impedance
2-8Ω
Power Supply
32V/5A, 48V/5A

FAQs

Please read our FAQs page to find out more.

Customer Reviews

Based on 264 reviews
88%
(233)
9%
(23)
2%
(4)
0%
(0)
2%
(4)
L
Louie Canillas
Great amp

Upgraded from a douk audio ns-13g. Cant believe the sound difference my Polk es10 pump out. Highly recommend. Perfect companion to a WiiM ultra

j
javier astorga
Buena relacion precio producto

Lo compare contra un mc250 y me sorprendi

O
Oscar
Buena relación calidad - precio

Por el tamaño y la potencia que puede generar es excelente para lugares con poco espacio, no se calienta mucho, pero si se recomienda tenerlo en un lugar ventilado, la opción del disparador (trigger) permite que se una con preamplificadores y trabaje muy bien, si no quieres gastar de más, no te preocupes por usar las entradas XLR, con las RCA tendrás más que suficiente.

F
Francisco Gallego Aguayo
Sonido muy limpio y potente.

Potente y no se calienta. Suena muy bien junto con el ZD3.

J
J.G.
Great amp!

Excellent - I have this ZA3 connected to the ZD3 by XLR cable.The unit is powering two Polk es20 bookshelf speakers. Sounds great - decent power being pushed! Very happy with this setup so far.