New from SMSL: VMV P2 MK2 Flagship Headphone Amp
VMV P2 MK2
The VMV P2 MK2 is a fully-balanced desktop headphone amplifier and preamplifier built for demanding headphones, high-sensitivity IEMs, and integrated two-channel systems. Its amplification stage combines a 99-piece parallel op-amp architecture with VMV’s four-channel Precision Linear Feedback Circuit Plus (PLFC+) topology, delivering up to 14W per channel from the balanced output while maintaining THD+N as low as 0.00006%. An integrated Gallium Nitride power supply, multiple gain stages, and balanced preamp connectivity make the P2 MK2 as a flexible desktop control center for both headphone and speaker-based listening systems.
99-piece parallel amplification architecture
The P2 MK2 uses 99 low-noise operational amplifiers arranged in parallel to increase current delivery capability while lowering output impedance to near 0Ω. Parallel amplification distributes load demands across multiple devices, helping the amplifier maintain stable current output with low-impedance planar magnetic headphones and higher-voltage requirements from 300Ω and 600Ω dynamic designs.
Balanced output power reaches 14W per channel at 16Ω, 8W per channel at 32Ω, 1W per channel at 300Ω, and 500mW per channel at 600Ω. Unbalanced output delivers up to 4W per channel at 16Ω. The amplifier includes 4-pin XLR, 4.4mm balanced, and 6.35mm single-ended headphone outputs, allowing compatibility with a broad range of headphone cable terminations and drive requirements.
Fully-balanced PLFC+ circuit design
A true differential signal path extends from input to output, preserving channel separation and reducing common-mode noise throughout the amplification stage. VMV’s four-channel PLFC+ implementation maintains THD+N at 0.00006% (-123dB at 1kHz into 32Ω) with a signal-to-noise ratio and dynamic range rated at 135dB. Low residual noise and distortion help prevent amplifier artifacts from becoming audible when paired with high-sensitivity transducers and revealing source chains.
The amplifier supports both balanced XLR and unbalanced RCA inputs alongside balanced and unbalanced preamp outputs. Frequency response extends from 20Hz to 100kHz within -0.5dB, maintaining bandwidth beyond the audible range while preserving stability across connected loads.
Integrated GaN power supply
The P2 MK2 incorporates an internal Gallium Nitride switching power supply rather than relying on an external adapter or conventional switching stage. GaN devices operate with lower switching losses and faster transition speeds than traditional silicon-based designs, helping reduce ripple interference and improve overall efficiency while maintaining substantial current reserves during transient-heavy passages.
The internal supply architecture also contributes to the amplifier’s compact desktop footprint while supporting output power levels typically associated with larger chassis designs. Power consumption remains below 100W under operation.
Gain structure and low-level control
Three selectable gain stages allow the P2 MK2 to accommodate a wide range of headphone sensitivities. Balanced gain settings are available at -3dB, 6dB, and 24dB, while unbalanced operation provides -9dB, 0dB, and 18dB modes. Lower gain settings improve usable range on the volume control with sensitive earphones and reduce residual noise when paired with efficient IEMs.
A custom high-precision volume potentiometer is used to minimize channel imbalance during low-volume listening, which is particularly important when using high-sensitivity in-ear monitors where small tracking errors can become noticeable at lower attenuation levels.
Desktop preamplifier functionality and protection systems
Beyond headphone amplification, the P2 MK2 functions as a dedicated balanced preamplifier with both XLR and RCA pre-outs for connection to power amplifiers or active speakers. Low-temperature-drift resistors are used internally to maintain stable operating behavior during extended listening sessions and varying thermal conditions.
Protection systems include DC detection, overload, over-voltage, and thermal monitoring circuits to safeguard both connected headphones and the amplifier itself. A delayed startup relay suppresses turn-on transients for pop-free operation, while the rear USB service port supports future firmware updates and system-level optimization.
