Original price was: US$369.US$299Current price is: US$299.
- Mix & Match HRK 500 Products!
| 500 Units | 2 | 4 | 6+ |
| Discount | -10% | -15% | -20% |
- Free Shipping for Orders $299+
- Handmade in HRK Workshop
- Fully Assembled and Tested
- Express Delivery to Europe │ USA │ UK │ Canada
- Ultra-Smooth and Musical Six-Band EQ
- New Parallel Filter Design
- +/-9dB Boost/Cut Accurate Control
- Total of Six Independent Bands
- Each Band Has Two Frequency Settings
- Separate Discrete Opamp for each Band
- Innovative HRK Circuit Design
- High-Quality Studio Grade Selected components
- Coupled with Custom HRK Active Transformer
- On-Board Voltage 500 Rack PSU Filters
- Direct Sale - Save 30% on Distributors Fee!
EQ556 Six-Band Studio Equaliser. The Uncompromising Sound
Introducing the HRK EQ556, a six-band studio equaliser meticulously engineered to meet the demanding needs of modern studio environments.
This unique piece of equipment encapsulates the HRK’s commitment to delivering audio processing tools of quality and precision.
HRK move beyond conventional design to offer innovative solutions that empower audio professionals to realize their creative vision with an unmatched level of control.
At the core of the EQ556 is a new parallel filter design, a breakthrough that sets a new benchmark in audio equalisation. This innovative architecture ensures a coherent phase response across the audio spectrum, delivering a transparent and uncoloured sound that remains faithful to the original recording.
The EQ556 does not merely process audio; it refines sound with a level of musicality that is emblematic of HRK’s studio equipment.
EQ556 Introduction and Demo
Server hosted video – no YouTube sound compression.
EQ556 Key Features:
Innovative Parallel Filter Design:
The EQ556 employs a novel parallel filter design, allowing for an intricate sculpting of sound without introducing phase issues. This design retains the integrity of the original sound, ensuring a pure, uncoloured audio experience.
Versatile Six-Band Equalisation:
With six bands of equalisation, the EQ556 offers a comprehensive control over your sound spectrum. Each band is carefully selected to provide the precise level of control needed for professional audio work.
Selectable Frequencies:
Each band features two selectable frequencies, offering you flexibility in shaping your sound. This feature expands the creative palette, making the EQ556 a versatile tool for any studio application.
Accurate Boost/Cut Control:
Improved +/- 9dB of boost/cut range provides a precise control over each band. This level of control is critical for achieving a balanced sound, whether you are on a recording, mixing, or mastering session.
Transparent Sound Profile:
The EQ556 is engineered to provide a transparent, non-destructive sound. It honours the original audio material while providing the control you need to make it shine.
High-Quality Selected Components:
At HRK, we believe in uncompromising quality. The EQ556 is built with selected high-quality components, ensuring a reliable, professional-grade performance and an enduring lifespan.
Stereo Buss Operation
- Our improved production process ensures stereo matching between units
- If you purchase two units in one order, both units are matched for stereo operation, bus processing and mastering.
EQ556 Demo Video
Server hosted video – no YouTube sound compression.
HRK Active Transformer
Bart Hrk has developed a proprietary design for an Active Transformer, aimed at addressing the limitations of traditional passive transformers.
Traditional passive transformers are known to be vulnerable to electromagnetic interference, such as 50/60Hz hum and HF RF smog. Additionally, their frequency response is contingent upon load and source impedance, which adversely affects the overall performance of analog studio equipment.
The HRK Active Transformer is a game changer that not only resolves the issues associated with passive transformers but also retains and amplifies the desired characteristics of the transformer output stage. This includes the enrichment of harmonic content and the enhancement of tonal response.
What sets the HRK Active Transformer apart is its ability to deliver the rich, beloved sound that audio enthusiasts seek, including the harmonic content and tonal response, while simultaneously eliminating the drawbacks of passive transformers.
Furthermore, the Active Transformer introduces a delicate “Air” effect and boasts an extended low-frequency (LF) performance, adding depth and clarity to the sound.
Another remarkable feature of the Active Transformer is its dynamic saturation, which is dependent on the output level. As the output signal level increases, the Active Transformer exhibits greater saturation, reminiscent of the warm and rich sound produced by classic studio equipment.
In summary, the HRK Active Transformer is an innovative solution that offers superior sound quality, eliminates electromagnetic interference, and enhances harmonic content and tonal response. It is an invaluable asset for professionals and audiophiles seeking to elevate their audio experience.
Specification
- Balanced Input – Impedance 20kΩ
- Balanced Active Transformer Output – Impedance less than 50Ω
- Frequencies: 80Hz/160Hz, 120Hz/330Hz, 660Hz/1.2kHz, 2.6kHz/4.8kHz, 6kH/10kHz, 12kHz/16kHz
- Filters Type: LF Shelf, Bell, Bell, Bell, Bell, HF Shelf
- Boost/Cut – +/-9dB – All Bands
- Nominal Gain – Knobs set to 12 o’clock – 0dB
- Typical THD+N – Less than 0.02%@1k in 10Hz-22kHz BW
- Noise Floor EQ Engaged – Less than -90dBu@10Hz-22kHz BW
- Bandwidth at flat response – 10Hz – 60kHz@-1dB
- Maximum Output Level – +25dBu@0.1%THD
- Power Consumption – Less than 60mA
- Compatible with any standard 500 Rack
All HRK Products are tested with the industry’s best audio measuring equipment – The Audio Precision
Audio Precision is an industry leader in providing high-quality audio testing equipment. They are renowned for their test systems’ precision, reliability, and versatility.
When testing studio audio devices, Audio Precision’s equipment can assess parameters like frequency response, harmonic distortion, intermodulation distortion, phase response, signal-to-noise ratio, and cross talk. In-depth and accurate testing allows the identification of even the smallest issues in audio quality, enabling corrections and improvements that can significantly elevate the overall product quality.
In conclusion, using Audio Precision test equipment is an excellent way to ensure that all HRK products are performing at their best, meeting the standards required for the Professional Studio Applications.
Stereo Buss Operation
- Our improved production process ensures stereo matching between units
- If you purchase two units in one order, both units are matched for stereo operation, bus processing and mastering.
- Spcial stereo coupling link cable is supplied with every pair of 500 Compressors
All Items are dispatched from Poland in the European Union within 1-3 working days.
| Country / Region | Shipping Cost | Customs Fee | VAT |
| All 27 European Union Countries – Delivery Time: 2-7 Days | – 14.99USD for orders below 299USD – FREE shipping for orders over 299USD | NO Customs Fees | – Yes, for personal orders- Not charged with the EU VAT number |
| United Kingdom – Delivery Time: 3-7 Days | – 14.99USD for orders below 299USD – FREE shipping for orders over 299USD | No VAT Charge | HMRC collects the VAT or additional Fees if applicable. |
| USA, Canada – Delivery Time: 5-10 Days | – 14.99USD for orders below 299USD – FREE shipping for orders over 299USD | NO Customs Fees for orders up to 800USD – charged by the USA Customs Office | No VAT charge. |
| Australia, Japan, South Korea – Delivery Time: 5-14 Days | – 19.99USD for orders below 299USD – FREE shipping for orders over 299USD | There is no info available – refer to local regulations. | No VAT charge. |
| Switzerland Delivery Time: 3-7 Days | – 14.99USD for orders below 299USD – FREE shipping for orders over 299USD | There is no info available – refer to local regulations. | No VAT charge. |
| Norway Delivery Time: 3-7 Days | – 14.99USD for orders below 299USD – FREE shipping for orders over 299USD | There is no info available – refer to local regulations. | No VAT charge. |
| Russia, Belarus – NOT AVAILABLE | NOT AVAILABLE | NOT AVAILABLE | NOT AVAILABLE |
| Worldwide Destination Delivery Time: 3-14 Days | – 29.99USD | Refer to local regulations. | No VAT charge. |
EU Customers
EU Customers will not pay any extra customs fees.
Business customers with a valid EU VAT number will not have to pay VAT tax.
Please enter your EU VAT Number at checkout and the VAT will be deducted from the Total Payment. The VAT number is automatically checked in the VIES database.
For personal orders from the EU, VAT will be added at checkout.
UK Custmers
We ship directly to United Kingdom.
UK VAT tax is collected by HRMC
Non-EU Customers
Customers from outside the EU purchase items with no VAT.
Please select the destination country and the VAT will be removed automatically.
If the VAT is not removed, please email customer service via the contact form and a custom invoice will be issued.
USA and Canada
Orders from the USA below 800USD are FREE from customs tax.
We ship directly to the USA and Canada
Payment Options:
You can pay for your order with any Credit Card or Apple Pay!
PayPal – We do not use PayPal as a payment method.
7 Days Return Policy
If the item is damaged during transport, we will do our best to help you and provide a replacement product.
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