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  • Summit Audio FeQ-50- Front Angle -
  • Summit Audio FeQ-50- Front -
  • Summit Audio FeQ-50- Angle -
  • Summit Audio FeQ-50- Rear -

Summit Audio FEQ-50

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Product Description

FEQ-50 Passive Tube/Solid State EQ - Half Rack Unit

Unique passive design
The Summit Audio FeQ-50 draws from years of research and experience to be able to fit a true tube passive design into a chassis of this size. Coveted by top professionals for decades, passive EQs have better phase coherence, and the inductors offer a rich, smooth harmonic quality.

This and that
The FeQ-50 provides both tube and solid-state outputs, each with their own 1/4” (-10) and XLR (+4) jacks. With four simultaneous outs available, you can do all sorts of multi-tracking tricks with a single signal.

Parametric 4 band EQ
The FeQ-50 is a four-band passive equalizer covering the entire audible frequency spectrum, so it can be used on any audio source material. You can subtly sculpt and fine-tune an instrument or vocal to make it fit perfectly into a mix, or you can totally transform a sound into something entirely different and new. 

Really well built
The Summit Audio design philosophy considers the entire package when it comes to crafting gear. We pay special attention to the details of construction and have included many refinements over the years so units are durable enough to handle the rigors of the road. That is one of the reasons why you will find Summit gear on tour with many of today’s top touring acts around the world.
The passive advantage.
Hand-crafted in the USA
Each piece of Summit gear is meticulously crafted by hand in our shop using only the best quality components and attention to detail. Quality components and engineering know-how are the critical element to the sound and longevity of audio gear.
3 year warranty.

All Summit gear comes with a 3 year limited warranty
Internal power supply.
All Summit Audio products sport an internal high voltage power supply using an industry standard IEC connector.


Technical Specifications
Size and Weight
1.75 inches (4.44 cm)
8.5 inches (21.59 cm)
8.5 inches (21.59 cm)
5 pounds (2.77 kg)

Power Configuration
Internal AC Supply
15 watts, 115, 50 or 60 Hz (USA model)
Fuse size .5 amp, slo-blo for 100/115 V
Fuse size .25 amp, slo-blo at 230 V

Selectable Frequencies
Low Band
The Low EQ band can be set for either a peak or shelving
response and can boost or cut up to ±14dB.
frequencies: 33Hz, 60Hz, 100Hz, 150Hz, 270Hz, or 410 Hz.
Mid Band
frequencies: 390hz, 470Hz, 560Hz, 680Hz, 820Hz, or 1kHz.
wide/narrow Q selectable
High-Mid Band
frequencies: 1.2 kHz, 1.5 kHz, 2.2 kHz, 3.3 kHz, 4.7 kHz
and 5.6 kHz. wide/narrow Q selectable
High-Frequency Cut
The High-Mid EQ band can be set for either a peak or
shelving response and can boost or cut up to ±14dB.
5 kHz, 7.2 kHz, 8.2 kHz, 10 kHz,12.5 kHz, or 18kHz

Size and Weight
Line Input: +4 dB XLR Balanced and -10 dB 1/4" unbalanced
Solid State Outputs: +4 dB male XLR and 1/4" -10 dB balanced
Tube Outputs: +4 dB male XLR and 1/4" -10 dB balanced
Max input level
Max input level: +20 dBu
Max output level (XLR): +20dBu
Max gain: +/-14dB per band
Operating Measurements

Frequency response:
Tube:12Hz-100kHz -1dB
Solid State: 12Hz-100kHz -1dB
Signal to noise ratio
Tube: 122dB
Solid State: 124dB
THD + Noise:
Tube: 0.16% +4dB in 20Hz-20kHz
Solid State: 0.07% +4dB in 20Hz-20kHz
Vacuum tubes: single 12AX7A
3 year limited warranty.


Warranty Information

Comes with 3 Year Manufacturer's Warranty

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