TECHNICAL SPECIFICATIONS
Circuit Design: Based on legendary E-Series "Black Knob" 242 Console EQ
Format: 500 Series (VPR Alliance & GDIY 51X compatible)
EQ Type: 4-Band Semi-Parametric with switchable Bell/Shelf
Gain Range: +/- 18 dB per band (with Center Detent for easy recall)
Input/Output: Balanced THAT 1246 Input & THAT 1646
Output Stages Power Requirements: Standard +/- 16V DC (500 Series Rack)
DETAILED FEATURES
Four-Band Precision Control:
Low Band: 30Hz - 450Hz (Switchable Shelf/Bell)
Low-Mid Band: 200Hz - 2.5kHz (Fully Parametric with adjustable Q)
High-Mid Band: 600Hz - 7kHz (Fully Parametric with adjustable Q)
High Band: 1.5kHz - 16kHz (Switchable Shelf/Bell)
Integrated Filters: Dedicated 80Hz Low-Cut and 8kHz High-Cut (24dB/oct) for instant signal cleanup.
Premium Audio Path: High-headroom design featuring original WIMA capacitors and low-noise operational amplifiers.
Professional Build Quality: Dual-layer PCB with immersion gold finish for maximum durability and easy soldering.
WHAT'S INCLUDED IN THE KIT?
This is a Full DIY Kit including all parts for a successful build:
Powder coated black front panel with high-quality printing
All electronic components (resistors, capacitors, ICs, THAT-chips)
Full set of high-quality knobs
(Note: This product requires assembly and soldering skills. Professional assembly guide available in the "Build Manuals & Specs" tab.)
Help yourself and others in the corresponding GDIY Help Thread
SLQ51X Black
Bring the Iconic "Black Knob" Console Sound to Your Studio. The SLQ51X Black is a premium 4-band equalizer for the 500-series format, based on the legendary E-series console circuitry. Known for its punchy, broad, and musical character, this EQ has been a staple in professional mixing for decades. Now, you can build this classic piece of analog gear yourself.
This EQ is designed in the 500 API format and based on the classic E242 equalizer, offering a rare and unique sound that's difficult to replicate. With +/-18dB of loudness and gain changes based on Q-settings, the Black EQ is perfect for fine-tuning your audio to your exact specifications.
Very Flexible and very precise calibration for all needs. We added to this 4 Band Equalizer a Low and High Cut Filter to make it more flexible in Mixing or Recording situations.
Product name: SLQ51X Black
Product identifier: SLQ51XBL2222/SLQ51XBL2244
Manufacturer: Link Audio Design, August-Bebel-Str.18, 08373 Remse, linkaudiodesign@gmail.com
- Shipping will be calculated depending on your location and weight
- Standard Shipping within Germany with DHL
- Slow Shipping up to 0.5kg with DHL Envelope Service worldwide ( up to 20 days)
- UPS Expedited and Express Saver as Option in Checkout
- Return of untouched DIY Kits is possible during a time of 14 days after receiving your article within EU , check our Return Policy
