Hybrid S-EQ231FBQ Dual Channel 31-Band 1/3 Octave Graphic Equaliser

The HYBRID S-EQ231FBQ is a professional dual-channel 31-band 1/3 octave graphic equaliser designed for precise audio control and real-time feedback management. Featuring adjustable gain ranges (±6 dB or ±12 dB), low and high-cut filters, and an advanced feedback detection system with LED indicators, it ensures clean, balanced sound in any environment. With both balanced and unbalanced inputs and outputs, as well as a dedicated sub output with adjustable crossover, it seamlessly integrates into a wide range of audio systems. The S-EQ231FBQ delivers reliable performance, flexibility, and exceptional sound shaping capabilities.

Key Features

Dual-Channel Design
Independent controls per channel including:
- Input gain control (-15 dB to +15 dB)
- Bypass switch
- 12 segment LED Real-time input & output monitoring (Switchable)
31-Band EQ (Per Channel)
- 20mm faders covering 20 Hz – 20 kHz
- Constant Q design for precise, stable adjustments
- Switchable gain range: ±6 dB or ±12 dB
Feedback Detection System (FBQ)
- FBQ activated on the front panel
- LED indicators on faders show feedback frequencies
- LEDs turn off once gain is sufficiently reduced
- Also indicates highest peak frequency in normal mode
Adjustable Filters
- Low Cut Filter (High pass filter): 10 Hz – 400 Hz
- High Cut Filter (Low pass filter) : 2.5 kHz – 30 kHz
- Sub Output Crossover: 30 Hz – 200 Hz (adjustable)
I/O & Connectivity
- Inputs: Balanced XLR & 1/4″ TRS Jack (parallel)
- Outputs: Balanced XLR & 1/4″ TRS Jack (parallel)
- Sub Out: XLR
Bypass Function
- One-touch EQ bypass on front panel

Technical Specifications

Input Impedance: 40 kΩ (balanced/unbalanced)
Input Level: 0 dB rated, +20 dB max
Frequency Response: 10 Hz – 30 kHz (±3 dB)
S/N Ratio: >94 dB @ +4 dB (22 Hz – 22 kHz)
THD: <0.05%
Filter Ranges:
- Input Gain: -15 dB to +15 dB
- Low Cut: 10 Hz – 400 Hz
- High Cut: 2.5 kHz – 30 kHz

Power & Physical

Power Supply: 220–240 VAC, 50–60 Hz
Power Consumption: <18W
Weight: 1.75 kg
Dimensions: 480 x 96 x 97 mm

HYBRID is a South African brand with over 30 years’ experience in professional audio, stage and lighting. Our brand is aimed specifically at the African market to meet our continent’s demands for features, performance and budget.
HYBRID+ is our flagship brand, offering features and performance comparable to world renowned brands and making HYBRID+ one of the best price-to-performance ratio brands.

Price-Flex

Price Flex

Name: Hybrid S-EQ231FBQ
SKU: EQUHYB003
Availability: InStock

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Delivery Exclusions

PLEASE NOTE:

Some products are exceptionally large, heavy or bulky and require specialist freight services. This typically includes items such as large PA speakers, dual 15″ speaker cabinets, dual 18″ subwoofers, flight cases and other oversized or very heavy equipment.

We work hard to keep our prices as competitive as possible and, in most cases, delivery is completely covered by our standard shipping rates. However, for certain oversized items being delivered to regional or outlying areas, the actual courier cost can be significantly higher than standard deliveries. This is also owing to factors completely outside of our control (petrol costs and rising costs of delivery by courier partners)

If this applies to your order, we will always contact you before dispatch to discuss the available options. These may include:

Proceeding with a small additional freight contribution.
Collecting the order from one of our suppliers or a nearby courier depot where available.
Cancelling the order for a full refund if a suitable solution cannot be reached.

Please be assured that we only request an additional freight contribution in exceptional circumstances where the courier cost is substantially higher than normal. Our goal is always to deliver your order at the advertised price whenever possible.

If you’re unsure whether an item may be affected, you’re welcome to contact us before placing your order and we’ll gladly provide a delivery estimate.

Thank you for your understanding and ongoing support!