Summit Audio EQF-100 - Tube/Solid State Hybrid Equalizer

Summit Audio EQF-100 - Tube/Solid State Hybrid Equalizer

Summit Audio EQF-100 - Tube/Solid State Hybrid Equalizer

B&H # SUEQF100 MFR # EQF-100
Summit Audio EQF-100 - Tube/Solid State Hybrid Equalizer

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Product Highlights

  • Single Channel
  • 4 -Band Fully Parametric
  • Passive Design
  • High- and Low-Pass Filters
  • Individual Bypass per Band
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  • 1Description

The EQF-100 from Summit Audio is a single channel, 4-band fully parametric passive equalizer that is suitable for both tracking and mixing. The unit is a hybrid processor that uses solid state technology to provide reliability, while the vacuum tube amplifier delivers tube "warmth" and provides gain to overcome any loss when cutting frequencies.

The EQF-100 features individually, hand-tuned frequencies, a silent master bypass switch and individual bypass switches on each band. Additionally, 3-position high-pass and low-pass filters can be switched into the transformerless signal path. This passive EQ is incredibly accurate, sounds wonderful, and is hand built in the USA to the most exacting standards.

4 bands of 7 switch-selectable center frequencies
Switchable high- and low-filters, with 3 selectable frequencies each
Continuously variable boost or cut
Individual in/out switch for each of the 4 bands
Silent global bypass switch
105dB of dynamic range
Balanced input
Transformerless signal path
990 output stage (balanced or unbalanced)
Universal internal power supply
Hand crafted in the USA
In the Box
Summit Audio EQF-100 - Tube/Solid State Hybrid Equalizer
  • AC Power Cable
  • Three (3) Year Warranty
  • Table of Contents
    • 1Description
    Filter Type Fully parametric
    High- and low-pass filters
    Number of Channels Single
    Inputs 1 x XLR
    Outputs 1 x XLR
    Maximum Input Level 25dBu
    Frequency Bands Band 1:
    33, 56, 100, 180, 220, 270 and 390Hz
    Band 2:
    250, 330, 470, 560, 680, 820Hz and 1.2kHz
    Band 3:
    1, 1.5, 1.8, 2.2, 2.7, 3.9 and 5.6kHz
    Band 4:
    3.3, 4.7, 6.8, 8.2, 10, 12.5 and 15Hz
    Bandwidth Variable, dependent on adjacent bands
    Range (Boost/Cut) +/-18dB
    Maximum Output Level 25dBu
    Frequency Response 12Hz to 50kHz, flat
    12Hz to 100kHz, -1.5dB
    Dynamic Range 105dB
    THD + Noise 0.026% @ 1kHz, 0dBu
    Power Requirements 115 or 230VAC, 50/60Hz
    Dimensions (WxDxH) 19 x 10.5 x 3.5" (483 x 267 x 89mm)
    Weight 21 lbs (9.45kg) shipping
    Specialties Three 12AX7A vacuum tubes

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