PSB M4U 8 MKII Wireless ANC Headphones

PSB M4U 8 MKII Wireless ANC Headphones at Vinyl Sound Buffalo NY

The PSB M4U 8 MKII are over-ear wireless noise-canceling headphones built around a 40mm closed-back dynamic driver, delivering active noise cancellation, Bluetooth aptX HD and AAC, Audiodo Personal Sound personalized hearing calibration, and PSB's proprietary RoomFeel EQ technology in a lightweight circumaural design weighing 342g. Available at Vinyl Sound in Buffalo, New York, the M4U 8 MKII offers 25 hours of battery life in wireless active mode and 18 hours with ANC engaged, with passive wired operation via 3.5mm and active wired operation via USB-C for continued use while charging. The all-digital signal path processes audio without analog conversion at intermediate stages, maintaining signal quality from source to driver. Audiodo Personal Sound assesses each ear individually via the PSB Headphones App and generates a personalized EQ correction that compensates for individual hearing variation. RoomFeel applies DSP processing that recreates the acoustic presentation of high-quality loudspeakers in a treated listening room. Available in Jet Black and Espresso Brown, with gyro-suspended earpads tilted 15 degrees for ergonomic fit and an EVA travel case included. The M4U 8 MKII is part of Vinyl Sound Buffalo's full headphone collection, which includes wireless, wired, and noise-canceling headphones from leading audio brands.

40mm Dynamic Driver and All-Digital Noise Cancellation

The M4U 8 MKII uses a 40mm dynamic driver in a closed-back circumaural enclosure with a frequency response of 20Hz to 20kHz (±1.5dB) and total harmonic distortion of 0.25% at 1kHz/1mW with ANC off and 0.5% with ANC engaged — distortion figures competitive with open-back audiophile headphones that sacrifice noise isolation for acoustic performance. The all-digital active noise cancellation applies digital signal processing directly to microphone feedback and feed-forward noise samples without converting to analog at intermediate signal stages, avoiding the noise floor and non-linearity associated with analog noise-cancellation circuits. Three listening modes are available: passive (wired, no amplification), active (wired or wireless with amplification and EQ), and noise-canceling (wireless or wired with full ANC processing). Sensitive call microphones support clear voice pickup for phone calls and video conferences.

Audiodo Personal Sound, RoomFeel, and PSB Headphones App

Audiodo Personal Sound is an in-app hearing calibration system that measures each ear's frequency sensitivity through tones and questions delivered by the headphones themselves, then generates a custom EQ profile correcting for hearing damage, physiological asymmetry, and psychoacoustic perception differences. Because standard factory EQ curves apply a fixed target regardless of the listener's actual hearing response, Audiodo's per-ear personalization produces more accurate tonal balance than generic EQ presets across the full program material range. RoomFeel is PSB's proprietary DSP mode that applies acoustic modeling derived from decades of loudspeaker room acoustics research to recreate the spatial presentation of speakers in a treated room — shifting the perceived soundstage from inside the head to outside it for a more natural, open listening experience. Both features are controlled through the PSB Headphones App for iOS and Android, which also displays real-time battery status.

Specifications

Frequently Asked Questions

What is the difference between the PSB M4U 8 MKII and the M4U 9?

Both headphones share the same 40mm closed-back dynamic driver format, 32-ohm passive impedance, ANC on/off modes, Audiodo Personal Sound, RoomFeel, 25-hour battery life in active mode, and 3.5mm/USB-C wired connections. The key differences are: the M4U 9 uses graphene-infused drivers, which provide higher stiffness and lower diaphragm resonance at high frequencies, extending the frequency response to 23kHz compared to the M4U 8 MKII's 20kHz; the M4U 9 supports aptX Adaptive Bluetooth, which scales bit rate up to 420kbps and includes low-latency video modes, while the M4U 8 MKII supports aptX HD, which delivers up to 576kbps at a fixed rate; the M4U 9 offers leatherette and cloth earpad options, while the M4U 8 MKII uses leatherette only; and the M4U 8 MKII is available in Jet Black and Espresso Brown, while the M4U 9 is available in Jet Black only. The M4U 8 MKII is the value-oriented model; the M4U 9 is the current flagship.

What is aptX HD Bluetooth in the PSB M4U 8 MKII?

aptX HD is a Qualcomm Bluetooth audio codec that transmits audio at up to 576kbps and 24-bit/48kHz resolution — significantly higher than standard SBC's 328kbps ceiling and standard aptX's 16-bit/44.1kHz limit. This allows the M4U 8 MKII to receive higher-resolution audio data wirelessly than standard Bluetooth headphones, reducing compression artifacts audible in complex music passages. aptX HD is supported on Android devices and computers with Qualcomm-based Bluetooth chipsets. On Apple devices (iPhone, iPad, Mac), the connection falls back to AAC, which is the preferred high-quality codec for Apple hardware. On non-aptX HD, non-AAC sources, the connection falls back to standard SBC.

What is Audiodo Personal Sound and how does it work?

Audiodo Personal Sound is a hearing calibration system integrated into the PSB Headphones App. It plays frequency tones through the headphones and asks the listener a series of perceptual questions, independently assessing each ear's sensitivity and hearing variation. The app generates a personalized EQ correction profile that compensates for differences in hearing sensitivity across frequencies — including age-related high-frequency hearing reduction, physiological asymmetries between left and right ears, and individual psychoacoustic perception patterns. The resulting profile is applied as a custom EQ layer on top of PSB's reference sound signature, producing tonal balance tuned to that specific listener's hearing rather than a statistical average target.

What is RoomFeel on the PSB M4U 8 MKII?

RoomFeel is a DSP preset developed by PSB using acoustic modeling derived from loudspeaker room acoustics research. Standard headphone playback produces a sound image that appears inside the listener's head — a psychoacoustic effect caused by headphone sound arriving only from directly adjacent to the ears without the room reflections, speaker dispersion patterns, and crosstalk present in loudspeaker listening. RoomFeel applies a frequency and spatial processing curve that reintroduces these acoustic cues, shifting the perceived sound image outward to produce a presentation closer to seated loudspeaker listening in a treated room. RoomFeel is selectable in the PSB Headphones App and works in both wireless and wired operating modes.

Can I use the PSB M4U 8 MKII wired?

Yes. The M4U 8 MKII supports two wired modes. The included 2-meter detachable 3.5mm cable enables passive wired operation without any amplification or DSP processing — compatible with aircraft seat audio, dedicated headphone amplifiers, and legacy devices without USB-C or Bluetooth. The included 2-meter detachable USB-C cable enables active wired operation with full amplification, ANC, and EQ processing while simultaneously charging the battery from a laptop or power bank. Both cables are detachable and tangle-free.

What finishes are available for the PSB M4U 8 MKII?

The M4U 8 MKII is available in Jet Black and Espresso Brown. The Espresso Brown finish is exclusive to the M4U 8 MKII — the M4U 9 flagship is available in Jet Black only. Both finishes are applied to the ABS + polycarbonate driver enclosure cups and complement the leatherette earpad material. Contact Vinyl Sound Buffalo to confirm current finish availability for each color option.

Where to buy PSB M4U 8 MKII headphones in Buffalo NY?

The PSB M4U 8 MKII is available from Vinyl Sound, an authorized PSB Speakers dealer in Buffalo, New York. Vinyl Sound also carries the PSB M4U 9 flagship headphones for side-by-side comparison. Free shipping is available across the continental United States. Contact Vinyl Sound Buffalo by phone or email to purchase or arrange an in-store demonstration.