
Description
The NSEQ-4 has brought new meaning to elegance in audio control and sound quality. Where the NSEQ-2 was head and shoulders above many other equalizers in musicality, control, and audio quality, the NSEQ-4 has taken all those attributes to a new level.
Features:
- World's first (and only) all-discrete, true differential Class-A input buffer/amplifier.
- Selectable balanced or unbalanced input.
- Greatly improved 3rd generation FSA-03 all-discrete EQ amplifier
- Improved output stage
- True hard-wire bypass when EQ not selected
- Upgraded power supply
- Fully parametric stereo EQ with unprecedented sonic purity and integrity
- All discrete J-FET solid state signal path
- Minimalist design: only one active stage in the audio path (Dove Topology)
- Identical EQ stage used in Library of Congress archiving 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,
- Silver Teflon power wiring, Mogami Neglex OFC audio wiring
- Lovingly hand-crafted in Northern California
Q Range | Q = 0.4 to 4.0 Adjustable on middle ranges Q = 1.0 Fixed on low and high ranges |
Maximum Output Level | > + 28 dBu |
Maximum Input Level (EQ Flat) |
+ 28 dBu |
Maximum Input Level (EQ Full Boost) | + 17 dBu |
Frequency Response |
+0 / -3 dB sub 2 Hz to beyond 300 kHz |
Frequency Response, Stereo Deviation | +/- 0.5 dB (with Mastering Option) |
Noise (All EQ Stages In, Controls Flat) | -106 dBu |
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 % |
Common Mode Rejection Ratio | 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? | Yes |
Peak/Shelf Selection On High and Low Range? | Yes |
Hard-wire Bypass Switching On Individual EQ Bands? | Yes |
Input Impedance | 25 kilohms |
Minimum Output Load Impedance | 50 ohms |
Recommended Load | > 500 ohms |
Output Impedance | 5 ohms |
EQ Amplifiers | Pure Class-A Discrete J-FETs |
The NSEQ-4 has brought new meaning to elegance in audio control and sound quality. Where the NSEQ-2 was head and shoulders above many other equalizers in musicality, control, and audio quality, the NSEQ-4 has taken all those attributes to a new level.
Features:
- World's first (and only) all-discrete, true differential Class-A input buffer/amplifier.
- Selectable balanced or unbalanced input.
- Greatly improved 3rd generation FSA-03 all-discrete EQ amplifier
- Improved output stage
- True hard-wire bypass when EQ not selected
- Upgraded power supply
- Fully parametric stereo EQ with unprecedented sonic purity and integrity
- All discrete J-FET solid state signal path
- Minimalist design: only one active stage in the audio path (Dove Topology)
- Identical EQ stage used in Library of Congress archiving 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,
- Silver Teflon power wiring, Mogami Neglex OFC audio wiring
- Lovingly hand-crafted in Northern California
Q Range | Q = 0.4 to 4.0 Adjustable on middle ranges Q = 1.0 Fixed on low and high ranges |
Maximum Output Level | > + 28 dBu |
Maximum Input Level (EQ Flat) |
+ 28 dBu |
Maximum Input Level (EQ Full Boost) | + 17 dBu |
Frequency Response |
+0 / -3 dB sub 2 Hz to beyond 300 kHz |
Frequency Response, Stereo Deviation | +/- 0.5 dB (with Mastering Option) |
Noise (All EQ Stages In, Controls Flat) | -106 dBu |
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 % |
Common Mode Rejection Ratio | 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? | Yes |
Peak/Shelf Selection On High and Low Range? | Yes |
Hard-wire Bypass Switching On Individual EQ Bands? | Yes |
Input Impedance | 25 kilohms |
Minimum Output Load Impedance | 50 ohms |
Recommended Load | > 500 ohms |
Output Impedance | 5 ohms |
EQ Amplifiers | Pure Class-A Discrete J-FETs |
We are your source for all your pro audio needs, delivered by experts. Call us today.
We are your source for all your pro audio needs, delivered by experts. Call us today.