The TOPPING PA5 ll is a compact, highperformance stereo power amplifierdesigned for audiophiles and music enthusiasts who seek exceptional soundquality in... Read more
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The TOPPING PA5 ll is a compact, highperformance stereo power amplifierdesigned for audiophiles and music enthusiasts who seek exceptional soundquality in a minimalist package. lt is the successor to the highly acclaimed originaPA5, building upon its strengths with improved engineering and features.
Key Features:
.High-Performance Amplification: At itscore, the PA5 ll utilizes two Infineon'sMA12070 Class-D amplifier chips in abridged configuration. This modern Class-D design is renowned for its highefficiency, low heat generation, and,most importantly, its exceptionally cleanand detailed sound output.
Exceptional Purity and Low Noise: A primary goal of the PA5 ll is to amplify the audio signal without adding coloration or distortion. lt boasts an extremely high Signal-to-Noise Ratio (SNR) and incredibly low Total HarmonicDistortion + Noise (THD+N).This resultsin a "black background" with no audiblehiss and a sound that is transparent,accurate, and faithful to the origina source.
Substantial Power Output: Despite itssmall size, it delivers robust power,typically ~130W per channel at 4Ω and~65W per channel at 8Ω. This makes itcapable of driving a wide range of bookshelf and stand-floor speakers to satisfying volume levels in small tomedium-sized rooms.
Fully Balanced & Single-Ended inputs:The amplifier features both XLR(balanced) and RCA(unbalanced) inpuiconnections.This flexibility allows it toseamlessly integrate into systems withboth professionaland consumer-gradeaudio sources, such as DACs andpreamplifiers.
The TOPPING PA5 ll Plus is an enhancedversion of the critically acclaimed PA5 ll.building upon its foundation as acompact,high-fidelity stereo poweramplifier. lt is designed for audiophileswho demand not only exceptional sonicpurity but also greater connectivity andcontrol flexibility in a modern audio system.
Key Features & Enhancements over thePA5 II:
.Dual-Mono Desian with NFCA: At its heart,the PA5 l plus utilizes a more advanced dual-mono architecture.This means it has two completelyindependent amplifier channels (one fol left, one for right) powered by separate components.This design minimizes crosstalk and improves channel separation for a wider, more precise soundstage.The amplification is
handled by Infineon's MA12070 chips, driven by TOPPING's proprietary Nested Feedback Composite Amplifieir (NFCA) technology, known for its ultra-ow distortion and noise.
Exceptional Sonic Purity: Like its predecessor, the primary goal is transparent amplification. lt boasts an extremely high Signal-to-Noise Ratio (SNR) and vanishingly low Total Harmonic Distortion + Noise (THD+N).The result is a pristine "black background" and a sound signature that is neutral, detailed, and uncolored faithfully reproducing the source
material.
Robust Power Output: lt deliverssubstantial clean power, typicallyaround 135W per channel into 4Ω and65W per channel into 8Ω. This makes ithighly capable of driving a wide range otbookshelf and even some floor-standincspeakers in smal to medium-sized
rooms.
