Topping PA3S Fully Balanced Class D Power Amplifier

Posted in Sep 27, 2021 in News, no comment

Topping has a wide arsenal of HiFi Desktop DACs and Amplifiers that are available across different price segments to cater to the needs of both casual and professional audio enthusiasts. Today, Topping has announced its latest fully balanced Class D desktop power amplifier, the Topping PA3S.

Topping PA3S

It features 2 independent MA12070 Class D power amplifier chips that provide high-class signal amplification with lower distortion in the output. The power here is shared across two independent amplifier chips that greatly improve the performance and reduces the heat dissipation by each chip. PA3S has both single-ended as well as balanced input connection support. It churns out enough power to drive your bookshelf speakers with great clarity and strength. Just pair the latest D10 Balanced DAC with the PA3S and you are good to go for a high-class desktop power amp system for your speakers.

Features
– Fully balanced Class D amplifier.
– Dual independent MA12070 Merus Power AMP chips.
– Ultra-low distortion ratings.
– Balanced TRS connection support.
– Single-ended RCA connection support.
– Powerful output, drive speakers with ease.
– Simply & compact form factor.
– Perfect companion for Topping D10 Bal DAC.

Single Ended Input
– THD+N@1kHz(A-weighted): <0.0050% @ 4Ω, <0.0040% @8Ω.
– THD+N@20Hz-10kHz(20kBW): <0.0080% @4Ω, <0.0070% @8Ω.
– SNR: 107dB.
– Dynamic Range: 107dB.
– Frequency Response: 20Hz-40kHz(±0.1dB).
– Output Level: 46Vpp@4Ω, 48Vpp@8Ω.
– Noise(A-wt): <70uVrms.
– Crosstalk: -96dB.
– Input sensitivity: 0.92Vrms.
– Gain: 25.2dB.
– Channel balance: 0.5dB.

Bal Input
– THD+N@1kHz(A-weighted): <0.0045% @ 4Ω, <0.0040% @8Ω.
– THD+N@20Hz-10kHz(20kBW): <0.0070% @4Ω, <0.0060% @8Ω.
– SNR: 112dB.
– Dynamic Range: 112dB.
– Frequency Response: 20Hz-40kHz(±0.1dB).
– Output Level: 46Vpp@4Ω, 48Vpp@8Ω.
– Noise(A-wt): <70uVrms.
– Crosstalk: -100dB.
– Input sensitivity: 1.75Vrms.
– Gain: 19.5dB.
– Channel balance: 0.5dB.
– Output Power(THD+N <10%): 80Wx2 @4Ω, 45Wx2 @8Ω.
– Output Power(THD+N <1%): 65Wx2 @4Ω, 37Wx2 @8Ω.
– Adapter Impedance: 4-8Ω.

Excellent Performance With Dual Independent Amplifier Chips
Topping PA3S adopts one MA12070 class D amplifier chip for each channel. It provides high-quality performance with reduced crosstalk. A separate amplifier chip for each channel also reduces the load on each chip, effectively improving reliability and extending the lifespan of the chipset. Just by including the PA3S in your chain, you will notice drastic improvements with your speaker system.

Powerful Output For Powerful Performance
Topping PA3S achieved an output power rating of up to 80Wx2 @ 4Ω with THD+N at 10%. In high-quality THD+N 1%, the PA3S churns out 65Wx2 @4Ω. It is more than adequate to power up bookshelf speakers and even some full-size floor speakers. Topping PA3S can bring life to your Bookshelf speakers with its powerful performance.

Balanced & Single-Ended Input Architecture
Users can feed the audio signal to the PA3S using both single-ended RCA and Balanced TRS connections. The use of balanced input eliminates potential ground loop problems resulting in a cleaner, noise-free background. Users can easily switch between both the input options using the button on the front.

Compact & Elegant
Topping PA3S has a compact form factor, the amp has elegant looks with a rich, smooth finish on the aluminum chassis. The volume wheel is smooth and allows for precise volume adjustment with the speakers. Its form factor makes it an easy companion that can be placed anywhere on the desk.

Perfect Companion For Topping’s 2021 DAC Lineup
If you are looking for a budget-friendly desktop stack for your HiFi speakers systems, simply pair the PA3S with Topping D10 Balanced DAC. Even though you can easily connect the PA3S to other DAC systems, Topping D10 Balanced offers balanced TRS connections for better performance. PA3S can be a perfect companion to multiple DAC systems launched by Topping this year that includes Topping E50, D10 Balanced, and DX3 Pro system.

Pricing & Availability
Topping PA3S is priced quite attractively at just 149$. You can turn your desktop stack into a full-blown speaker system stack for just 150$ with the latest Topping PA3S.

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