{"id":12441,"date":"2018-09-21T13:39:10","date_gmt":"2018-09-21T13:39:10","guid":{"rendered":"https:\/\/masteringmansion.com\/pro-audio\/?post_type=product&p=12441"},"modified":"2026-06-22T08:39:54","modified_gmt":"2026-06-22T08:39:54","slug":"nseq-4","status":"publish","type":"product","link":"https:\/\/masteringmansion.com\/pro-audio\/categorias\/ecualizadores\/nseq-4\/","title":{"rendered":"NSEQ-4"},"content":{"rendered":"

Full Timbral Control, Total Signal Integrity<\/strong>
\nWorld’s first (and only) all-discrete, true differential Class-A input buffer\/amplifier.
\nSelectable balanced or unbalanced input.
\nGreatly improved 3rd generation FSA-03 all-discrete EQ amplifier
\nImproved output stage
\nTrue hard-wire bypass when EQ not selected
\nUpgraded power supply
\nFully parametric stereo EQ with unprecedented sonic purity and integrity
\nAll discrete J-FET solid state signal path
\nMinimalist design: only one active stage in the audio path
\nIdentical EQ stage used in Library of Congress archiving path
\nFour EQ bands: 20 Hz to 20 kHz center frequency, 0.4 to 4.0 Q
\nExtremely low noise: -106 dBu
\nConstructed for demanding professional applications
\nUltra-Premium components throughout
\nGold relays, connectors, switches,
\nSilver Teflon power wiring, Mogami Neglex OFC audio wiring<\/p>\n

Options<\/strong><\/h4>\n
    \n
  • Detented, loggable controls<\/li>\n
  • Differentially balanced inputs<\/li>\n
  • NSEQ-2 can be converted to an NSEQ-4<\/li>\n<\/ul>\n
    \n

    Specifications<\/h2>\n<\/div>\n
    \n
    <\/div>\n<\/div>\n
    \n\n\n\n
    \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    \u201cQ\u201d Range<\/strong><\/td>\nQ = 0.4 to 4.0 Adjustable on middle ranges<\/strong><\/td>\n<\/tr>\n
    \u00a0<\/strong><\/td>\nQ = 1.0 Fixed on low & high ranges<\/strong><\/td>\n<\/tr>\n
    Maximum Output Level<\/strong><\/td>\n> + 28 dBu<\/strong><\/td>\n<\/tr>\n
    Maximum Input Level (EQ Flat)<\/a><\/strong><\/td>\n+ 28 dBu<\/strong><\/td>\n<\/tr>\n
    Maximum Input Level (EQ Full Boost)<\/strong><\/td>\n+ 17 dBu<\/strong><\/td>\n<\/tr>\n
    Frequency Response<\/a><\/strong><\/td>\n\u00a0<\/strong><\/td>\n<\/tr>\n
    \n

    +0 \/ -3 dB<\/strong><\/p><\/blockquote>\n<\/td>\n

    		sub 2 Hz to beyond 300 kHz<\/strong><\/td>\n<\/tr>\n
    Frequency Response, Stereo Deviation<\/strong><\/td>\n+\/- 0.5 dB (with Mastering Option)<\/strong><\/td>\n<\/tr>\n
    Noise (All EQ Stages In, Controls Flat)<\/strong><\/td>\n-106 dBu<\/strong><\/td>\n<\/tr>\n
    Maximum Boost (21 Step Detented)<\/a><\/strong><\/td>\n+20 dB (+10 dB with range switch in)<\/strong><\/td>\n<\/tr>\n
    Maximum Cut (21 Step Detented)<\/strong><\/td>\n-20 dB (-10 dB with range switch in)<\/strong><\/td>\n<\/tr>\n
    EQ Frequencies<\/a><\/strong><\/td>\n\u00a0<\/strong><\/td>\n<\/tr>\n
    \n

    Low Range Switch (Centers – Peak\/Shelf Selectable):<\/strong><\/p><\/blockquote>\n<\/td>\n

    		20, 34, 56, 100, 180, 270<\/strong><\/td>\n<\/tr>\n
    \n

    Low Mid Sweep:<\/strong><\/p><\/blockquote>\n<\/td>\n

    		20 Hz – 220 Hz or 200 Hz – 2.2 kHz.
    \n10X Range switch selectable.<\/strong><\/td>\n<\/tr>\n
    \n

    Hi Mid Sweep:<\/strong><\/p><\/blockquote>\n<\/td>\n

    		250 Hz – 2.5 kHz or 2.5 kHz – 25 kHz.
    \n10X Range switch selectable.<\/strong><\/td>\n<\/tr>\n
    High Range Switch (Centers – Peak\/Shelf Selectable)<\/strong><\/td>\n4.8 k, 5.8 k, 8.0 k, 10 k, 16 k, 21 k<\/strong><\/td>\n<\/tr>\n
    THD + Noise<\/strong><\/td>\n\u00a0<\/strong><\/td>\n<\/tr>\n
    \n

    20 Hz – 30 kHz, All EQ Bands Switched In<\/strong><\/p><\/blockquote>\n<\/td>\n

    		< .009%, typ < .003 %<\/strong><\/td>\n<\/tr>\n
    Common Mode Rejection Ratio<\/strong><\/td>\n\u00a0<\/strong><\/td>\n<\/tr>\n
    \n

    10 Hz – 20 KHz, 100 mV C.M.<\/strong><\/p><\/blockquote>\n<\/td>\n

    		> 60 dB, Typ > 80 dB<\/strong><\/td>\n<\/tr>\n
    Slew Rate, +27 dBu Out<\/strong><\/td>\n> 50 volts per microsecond<\/strong><\/td>\n<\/tr>\n
    Main Hard-wire Bypass Switch For Each Channel?<\/strong><\/td>\nYes<\/strong><\/td>\n<\/tr>\n
    Peak\/Shelf Selection On High & Low Range?<\/strong><\/td>\nYes<\/strong><\/td>\n<\/tr>\n
    Hard-wire Bypass Switching On Individual EQ Bands?<\/strong><\/td>\nYes<\/strong><\/td>\n<\/tr>\n
    Input Impedance<\/strong><\/td>\n25 kilohms<\/strong><\/td>\n<\/tr>\n
    Minimum Output Load Impedance<\/strong><\/td>\n50 ohms<\/strong><\/td>\n<\/tr>\n
    Recommended Load<\/strong><\/td>\n> 500 ohms<\/strong><\/td>\n<\/tr>\n
    Output Impedance<\/strong><\/td>\n5 ohms<\/strong><\/td>\n<\/tr>\n
    EQ Amplifiers<\/strong><\/td>\nPure Class-A Discrete J-FETs<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

    The NSEQ-4 has brought new meaning to \u00abelegance\u00bb 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. I ran a 2 vs. 4 test with a solo piano recording: One channel only split to both the 2 and the 4 and returned back to the monitor. I set the same frequency on each EQ and pushed both units to the max at that frequency since I wanted to learn what the worst case scenario might be. With piano, this would usually yield a hopeless result – even the slightest shortcoming will show in most any EQ unit when pushed this way. The NSEQ-4 actually held up quite well to this sort of abuse! Additionally, I found the residual noise level of the NSEQ-4 to be subjectively quite a bit lower than the NSEQ-2. I liked the \u00abcharacter\u00bb of the residual noise of the 4 much better. The noise is so low that it is no concern whatsoever in listening or use.
    \nMichael Bishop, Grammy award winning engineer\/producer<\/p>\n","protected":false},"featured_media":12442,"template":"","meta":[],"pwb-brand":[157],"product_brand":[],"product_cat":[1035],"product_tag":[536],"class_list":["post-12441","product","type-product","status-publish","has-post-thumbnail","pwb-brand-millennia","product_cat-ecualizadores","product_tag-millennia","first","outofstock","taxable","shipping-taxable","purchasable","product-type-simple"],"brands":[{"id":157,"name":"MILLENNIA","slug":"millennia"}],"_links":{"self":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product\/12441","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/media\/12442"}],"wp:attachment":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/media?parent=12441"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/pwb-brand?post=12441"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_brand?post=12441"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_cat?post=12441"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_tag?post=12441"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}