(Open Box) Topping - PA3s Fully Balanced Class D Power Amplifier
(Open Box) Topping - PA3s Fully Balanced Class D Power Amplifier, Dual independent MA12070 Merus Power AMP chips
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Fully Balanced Class D Power Amplifier
Topping - PA3s
Ultra-low distortion ratingsSay hello to Topping’s brand new PA3s! A fully balanced class D power amplifier which breathes new life into your home HiFi system. Boasting two powerful MA12070 class D power amplifier chips, the impressive PA3s offers spectacular power output to push your speakers with the upmost of ease! The PA3s also sports balanced architecture which enables users to connect with Topping’s other products such as the D10 balanced and E50.
Dual Independent Class D Power Amplifier ChipsTopping has equipped the PA3s with two independent MA12070 class D power amplifier chips for each channel. This is a powerful chip that provides powerful amplification with low distortion and crosstalk. Independent chip for each channel reduces the overall load on each chip and effectively improves the stability and lifespan of the chips.
at a glance
• Fully balanced Class D amplifier
• Dual independent MA12070 Merus Power AMP chips
• Ultra-low distortion ratings
• Balanced TRS connection supportl
• Single-ended RCA connection support
• Powerful output, drive speakers with ease
Impressive Power
Bring your Speakers To Life!To bring the best out of our HiFi Bookshelf and Floor speakers we need to feed them well with clean power. Topping PA3s is capable of providing an output power of up to 80Wx2 @ 4Ω with THD+N at 10%. For THD+N 1%, the PA3S churns out 65Wx2 @4Ω. It is more than adequate to bring life to our HiFi speaker setups.
Balanced & Single-Ended InputsUsers 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.
The Tech Spec
| Features | Specification | 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 |
|---|---|
| Balanced 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 Parameters | Output Power(THD+N <10%): 80Wx2 @4Ω, 45Wx2 @8Ω Output Power(THD+N <1%): 65Wx2 @4Ω, 37Wx2 @8Ω Adapter Impedance: 4-8Ω |
