Nobsound P10 Headphone Amplifier with 30V Boost Replaceable 1100mW Dual Compact Headphone Amplifier Circuit, Op-Amp, Output, 6.35mm/3.5mm Output,

[Wide Headphone Driving Performance] A dedicated headphone amplification circuit that achieves 1100mW output at a 32Ω load. It supports an impedance range of 24Ω to 600Ω, providing stable driving for high-sensitivity earphones (e.g., Ca*pfire Audio Satsuma 105dB/mW) to high-resistance over-ear headphones (e.g., Senn*eiser HD600 300Ω). The 30V voltage boost design enables high-volume playback with low distortion. In particular, it improves the reproduction of subtle sound pressure changes when using headphones with an impedance of 200Ω or higher. [Sound Quality Customization Mechanism] Equipped with two interchangeable NE5532 operational amplifiers as standard. Can be replaced with compatible chips (output current of 50mA or more) conforming to the 8-pin DIP package standard. Examples of tone adjustment: LME49720NA improves high-frequency resolution, OPA2134PA increases mid-range thickness. Due to the socket mounting method, replacement is possible without soldering or tools. 【Highly Stable Power Supply Design】Designed specifically for the included DC 5V/2A adapter. Achieves an S/N ratio exceeding 110dB, suppressing background noise below the audible range when there is no signal. The power supply circuit is equipped with a 3-stage noise filter (rectification, smoothing, and high-frequency rejection). Using an unsupported adapter carries a risk of output voltage fluctuation, so it is recommended to use the included adapter. 【Highly Stable Power Supply Design】Designed specifically for the included DC 5V/2A adapter. Achieves an S/N ratio exceeding 110dB, suppressing background noise below the audible range when there is no signal. The power supply circuit is equipped with a 3-stage noise filter (rectification, smoothing, and high-frequency rejection). Using an unsupported adapter carries a risk of output voltage fluctuation, so it is recommended to use the included adapter. [Compact Heat Dissipation Structure] The aluminum alloy casing (78 x 82 x 32 mm) improves heat dissipation efficiency. Four heat dissipation grilles are placed on the bottom to control the rise in temperature during continuous operation. Despite its small design weighing 210g, it comes standard with non-slip rubber feet to ensure stable placement even when inserting large plugs into the 6.35 mm jack. Tags: Amplifier, Tube amplifier, Tube amplifier kit, Phono equalizer, Integrated amplifier, Tube, 5.1ch amplifier, Small amplifier, Tube preamplifier, Tube radio