Millennia Media NSEQ-HF

500 Series Equalizer - Anniversary Edition

• High-end parametric equalizer 500 series based on NSEQ technology
• Fully discrete Class A J-FET circuit with no IC in the audio path
• Optimized for high frequency control with natural musicality
• Dove topology with a single active stage for maximum signal purity
• Direct hardware bypass for total signal integrity
• Precision frequency selection with military Grayhill switch
• Selectable balanced or unbalanced input
• Premium construction for professional mastering, mixing and tracking

Millennia NSEQ-HF: high-end equalizer for high frequencies

The Millennia Media NSEQ-HF is a 500-series equalizer designed to offer extremely musical and refined control of high frequencies. Based on the renowned NSEQ architecture used in mastering, broadcast and high-end productions, this module is designed to add air, detail and depth without introducing artifacts or sonic harshness.

Musical and natural equalization for mixing and mastering

The strength of the NSEQ-HF is its ability to emphasize the high end up to 21 kHz while maintaining a natural, three-dimensional sound output. The boost on the high frequencies is known to "sound like music," making it an ideal tool for mastering engineers, mix engineers and producers seeking brilliance without harshness.

Selectable frequencies for maximum precision

Selectable center frequencies allow precise intervention in the most critical areas of the high spectrum, adapting perfectly to any audio material, from vocals to acoustic instruments to the full mix.

Uncompromising Class A J-FET discrete architecture

At the heart of the Millennia NSEQ-HF are discrete Class A J-FET amplifiers, made without the use of integrated circuits in the audio path. Hand-selected transistors ensure outstanding performance in terms of transparency, dynamics and frequency response.

Dove topology for signal integrity

The minimalist topology with only one active stage ensures an extremely clean signal path. The absence of transformers and true differential configuration help maintain absolute sonic fidelity even in the most critical applications.

Designed for professional studios and critical applications

Built with ultra premium components and designed for intensive use, the NSEQ-HF is perfect for mastering studios, post-production, broadcast, and high-end live sound. Direct hardware bypass ensures that the signal remains completely intact when EQ is not active.

Millennia reliability and build quality.

Handcrafted in California, this equalizer is a gold standard for those seeking the highest level of sonic performance combined with rugged, durable construction.

Specifications.

• Format: 500 series module
• Filter type: shelving 6 dB/octave (fixed Q peaking 1.0)
• Selectable frequencies: 4.8 kHz, 5.8 kHz, 8 kHz, 10 kHz, 16 kHz, 21 kHz
• Maximum boost/cut: ±18 dB (±9 dB with active range)
• Maximum output level: +21 dBu
• Maximum input level: +20 dBu balanced, +14 dBu unbalanced
• Frequency response: < 2 Hz - over 300 kHz
• THD + Noise: < 0.009% (typical < 0.003%)
• CMRR: > 60 dB (typical > 80 dB)
• Slew rate: > 50 V/µs
• Input impedance: 25 kΩ
• Output impedance: 5 ohms
• Minimum load: 50 ohms (recommended > 500 ohms)
• Bypass: hardware direct (hard-wire)
• Amplification: Class A discrete J-FET
• Power supply: consumption +210 mA