Poweramp is in a constant state of evolution. The "Alpha" and "Beta" builds refer to pre-release versions of the Poweramp V3 (and eventually V4) engine overhaul. Build 709 (or specifically builds in the 700-709 range) represents a significant leap forward from the older V2 builds, introducing the new engine.
of Poweramp v3 (builds 900+) are significantly more advanced, offering a 64-band parametric EQ and improved Hi-Res support that surpasses the capabilities of the alpha builds. Security Risks poweramp alphabuild709 mod apk extra quality
It featured an updated Direct Hi-Res Output with support for Android 7/8 devices and high-quality Bluetooth codecs like LDAC and UHQ BT (up to 96kHz). Poweramp is in a constant state of evolution
While I am answering based on the likely search for technical details or high-quality audio features, it is important to note that of Poweramp v3 (builds 900+) are significantly more
An advanced 10-band graphical equalizer with custom presets.