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Millennia NSEQ-4 Stereo EQ  From Millennia

Stereo Parametric EQ

Millennia Media


Retail:  $4,889.00

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Manufacturer's Description from Millennia

Full Timbral Control, Total Signal Integrity

  • Two paths to perfection with Twin Topology™
  • Fully parametric stereo EQ with unprecedented sonic purity
    & integrity
  • All triode 300 V vacuum tube signal path or...
  • All discrete J-FET solid state signal path
  • Both topologies are entirely transformerless, high voltage,
    pure Class A
  • Minimalist design: only one active stage in the audio path
  • Four EQ bands: 20 Hz to 20 kHz center frequency, 0.4 to
    4.0 Q
  • Extremely low noise: -106 dBu
  • Constructed for demanding professional applications
  • Ultra-Premium components throughout
  • Gold relays, connectors, switches, tube sockets
  • Silver Teflon power wiring
  • Mogami Neglex OFC audio wiring


  • Detented, loggable controls
  • Musically rich vintage vacuum tubes
Millennia Media

About Manufacturer

Established as a classical music recording company in the 1980s, Millennia Media has grown to become one of the world's respected manufacturers of critical audio recording products. Now with more than 40,000 microphone preamplifier channels shipped, Millennia continues to set sonic precedent in solid-state and vacuum tube mic amps, equalizers, compressors, mixers, and recording channels. With numerous industry awards, fourteen TEC nominations, ten PAR Excellence and Reviewer's Pick awards, an E.Q. Blue Ribbon Award, three Stereophile Class A awarded products, an extensive owner's register of leading audio professionals, and a reputation for musical realism second to none, we believe you won't find a more transparent range of professional audio products on the planet.


“Q” Range

Q = 0.4 to 4.0 Adjustable on middle ranges


Q = 1.0 Fixed on low & high ranges

Maximum Output Level

> + 28 dBu (VT)

Maximum Input Level (EQ Flat)

+ 28 dBu (VT)

Maximum Input Level (EQ Full Boost)

+ 17 dBu (VT)

Frequency Response


+0 / -3 dB

sub 2 Hz to beyond 300 kHz

Frequency Response, Stereo Deviation

< .15 dB

Noise (All EQ Stages In, Controls Flat)

-106 dBu (SS), -94 dBu (VT)

Maximum Boost (21 Step Detented)

+20 dB (+10 dB with range switch in)

Maximum Cut (21 Step Detented)

-20 dB (-10 dB with range switch in)

EQ Frequencies


Low Range Switch (Centers - Peak/Shelf Selectable):

20, 34, 56, 100, 180, 270

Low Mid Sweep:

20 Hz - 220 Hz or 200 Hz - 2.2 kHz.
10X Range switch selectable.

Hi Mid Sweep:

250 Hz - 2.5 kHz or 2.5 kHz - 25 kHz.
10X Range switch selectable.

High Range Switch (Centers - Peak/Shelf Selectable)

4.8 k, 5.8 k, 8.0 k, 10 k, 16 k, 21 k

THD + Noise


20 Hz - 30 kHz, All EQ Bands Switched In

< .009%, typ < .003 % (VT or SS)

Common Mode Rejection Ratio (With Balanced Option)


10 Hz - 20 KHz, 100 mV C.M.

> 60 dB, Typ > 80 dB

Slew Rate, +27 dBu Out

> 50 volts per microsecond

Main Hard-wire Bypass Switch For Each Channel?


Peak/Shelf Selection On High & Low Range?


Hard-wire Bypass Switching On Individual EQ Bands?


Input Impedance

25 kilohms

Minimum Output Load Impedance

1 kilohm (VT), 150 ohms (SS)

Recommended Load

> 3 kilohms (VT)

Output Impedance

< 300 ohms (VT), < 5 ohms (SS)

Twin Topology EQ Amplifiers

Switch In: Pure Class-A Discrete J-FETs


Switch Out: Pure Class-A Triode Tubes

Power Consumption

40 watts maximum

Power Requirements

Selectable: 100-120, 200-240 V ac, 50/60 Hz

Dimensions/Shipping Weight

19” W x 3.5” H x 12.5”, 26 lbs.

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