SKU: 42183628998

Hollyland Cascade 2/4 Wire Converter. Bi-directional Convertion

Sale price$5190.01 Regular price$5766.68
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Hollyland Cascade 2/4 Wire Converter. Bi-directional ConvertionThe Hollyland 2 4 Wire Converter (Model: HL WC01) is a rugged, compact system utility designed to bridge legacy wired party line intercom hardware with modern 4 wire digital communications. In broad television, theatre, and industrial event grids, matching different audio standards can cause level drops or feedback loops. This bidirectional converter handles the cross translation automatically, maintaining pristine wideband audio quality in both

The Hollyland 2/4 Wire Converter (Model: HL-WC01) is a rugged, compact system utility designed to bridge legacy wired party-line intercom hardware with modern 4-wire digital communications.

In broad television, theatre, and industrial event grids, matching different audio standards can cause level drops or feedback loops. This bidirectional converter handles the cross-translation automatically, maintaining pristine wideband audio quality in both directions.

Understanding the Conversion

Wired intercom infrastructures generally fall into two categories. This converter acts as an active, real-time translator between them:

  • 2-Wire Systems (Party-Line): Used by brands like Clear-Com, RTS, or Altair. They transmit power and bidirectional (two-way) talk/listen audio down a single pair of wires within a standard 3-pin XLR line.

  • 4-Wire Systems (Matrix/Digital): Used by high-end digital matrix platforms, broadcast consoles, and wireless hubs (like the Hollyland Solidcom C1 / C1 Pro Hub or Syscom 1000T). These split incoming and outgoing audio lines onto entirely independent pairs of pins (one path exclusively for input, one exclusively for output).

Core Performance Features

  • Intelligent Auto-Nulling Circuitry: The biggest hurdle in 2-to-4 wire conversion is line echo caused by impedance mismatches. The converter features a dedicated, front-panel AUTO NULL button. With one click, the device generates an internal test tone, analyzes the connected line impedance, and drops echo levels out of the track automatically.

  • Power-Free Party-Line Drawing: The converter can extract its operational power directly from an active 12V to 36V DC 2-wire intercom line. You do not need to hunt for an external wall outlet on a busy production floor. (Note: If the 2-wire side doesn't provide power, it can also run off standard USB-C bus power).

  • Distance Wire-Length Compensation: Built with internal DIP switches on the chassis to account for high-frequency signal roll-off over long cable runs. Users can toggle distance compensation steps to optimize audio performance for cable lengths spanning up to 656 feet (200 meters).

  • Independent ±6 dB Gain Trimming: Features independent physical gain adjustment switches for both the 4-Wire Input and 4-Wire Output stages. This allows technical directors to balance varying audio volumes between different manufacturer systems.

  • 6-Segment Real-Time LED Level Meters: Dual LED level strips provide instant, scannable visual feedback for signal inputs and outputs, flashing green for optimal paths and shifting to red to warn of audio clipping.

Hardware Technical Specifications Matrix

Feature Component Hollyland 2/4 Wire Converter (HL-WC01) Specifications
Bidirectional Connectivity 2-Wire (3-pin XLR Male & Female) | 4-Wire (3-pin XLR Male & Female)
Audio Frequency Response 100 Hz to 5 kHz (Optimized for crystal-clear vocal range)
Total Harmonic Distortion Less than 1% at 1 kHz
Signal-to-Noise Ratio (SNR) >55 dB (at 0 dBu baseline input)
Maximum Audio Input Level 2-Wire: >6 dBu | 4-Wire: >18 dBu
Termination Resistor Grid Integrated Switchable 220Ω Internal Termination Resistor
Chassis Form Factor Space 1/4 RU Size (Up to 4 units can be mounted in a standard 1U rack tray)
Total Unit Weight Approx. 520 grams (18.3 oz)

The Auto-Nulling Status Indicator

When initializing a system, click the physical AUTO-NULL button on the front face. The integrated LED color ring provides real-time diagnostic feedback:

  • Cyan (Blue-Green): Idle state / calibration has not been performed yet.

  • Green: Calibration successful. Echo paths have been calculated and suppressed.

  • Red: Calibration failed. The device detected active crosstalk, a terminal short, or open open-ended cables. Check your XLR connectors and re-run.

Ecosystem Integration Best Practice: If you are hooking this up to cascade a Hollyland Solidcom C1 / C1 Pro Hub with an existing wired Clear-Com setup, wire the 4-wire ports of this converter to the 4W RJ45/XLR terminal on the Solidcom Hub, and the 2-wire side to your party-line. Turn off all microphones on the beltpacks before hitting AUTO-NULL, as background room ambient noise bleed can distort the accuracy of the acoustic echo measurement.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 42183628998

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 1027 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Carrie Ann Moore
Lake Worth, US
★★★★★ 3
Cute but Not Durable
Color: 2PK Green Leaping Phrog
⭐️⭐️⭐️⭐️ Cute but Not Durable Super cute toy—my dogs loved it right away! Unfortunately, they chewed the head off within a few hours. I ordered a second one because they were so into it, but the same thing happened again. I won’t be ordering a third, but they still play with their two headless frogs. So while it’s not the most durable, it definitely kept them entertained!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2025
A
Verified Purchase
Amazon Customer
Whiting, US
★★★★★ 5
Great toy
Color: Black/Orange
This brand really makes durable toys. They outlast every other toy my dogs have. One dog loves to get the squeaker out of any toy, but he doesn’t rip this one apart. Obviously it won’t last forever, but no toy does! Some other brands of toys only make it a day or two, while these last months to years.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
C
Verified Purchase
C Harper
Bozeman, US
★★★★★ 5
Super durable!
Color: 2PK Green Leaping Phrog
Yellow lab approved bc they are fun to chew. Mom approved because they last forever!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026
A
Verified Purchase
Arele
Bozeman, US
★★★★★ 5
Great toy for two big German Shepherds
Color: Brown
We only buy Tuffy dog toys now because we have one German Shepherd, and we often watch our daughter's GSD too, and the two dogs tear anything else apart in minutes. Tuffy toys are BY FAR superior to any other dog toy we have tried. That being said, some Tuffy toys seem to last longer than others with the two dogs, and this one has been pretty good! We've had it for a few weeks now, and it's just now starting to show some white (stuffing) where their teeth have pierced the top of the toy. That's pretty good, considering they play tug of war with it and can tear into toys pretty hard. If it were just our one dog, I think it would last a lot longer because it's the tug of war between the two of them that does them in faster. Even so, when they do manage to tear the fabric in vulnerable places, I just pull the stuffing out from that area, and they continue to play with it, sometimes for months! This one is better than some other Tuffy toys too because it has lots of areas where there is already more fabric and reinforced seams than stuffing, like all the legs on the side, the tail, and even the pincers. So far, they haven't been able to tear into those at all. Just a bit on the top of the head, and so far, no stuffing coming out yet. This one is a big win for us! When they finally do do it in, I will turn around and buy another Scorch the Scorpion right away!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2014
D
Verified Purchase
Deholle
Houston, US
★★★★★ 4
Tuffy Desert Phrog vs Lola
Color: Green Leaping Phrog, Color: Green Leaping Phrog
Just a little background about my dog. Lola is a 5 year old corgi-terrier mix with jaws of steal. Lesser stuffed toys have met death in under 5 minutes. Tennis balls last less than a day. Rope toys that do not have frayed ends might possibly last a week (frayed ends never stand a chance). The only toys that she has not managed to destroy are her Kong, a Kong bone, and a racquet ball. I figured I would document the life span of Phrog (Tuffy Scale: 9) before making my final judgement on it’s durability. Day 1 - Phrog Arrives! Lola was very excited about the arrival of Phrog and immediately went into destruction mode. Phrog did sustain a little damage before we were able to bribe her to drop Phrog and get her understand that he was more fun to play fetch with than to mutilate. The white you see in the picture is not stuffing, but the second layer of defense for the toy. The fact that my living room is not full of stuffing and I didn’t have to pry a squeaker out of my dog’s mouth, I’d say Phrog wins the Day 1 challenge. Day 9 - Phrog has sustained a little more damage, but not anything life threatening. His side wound is a little bit larger and one of his eyes is half ripped off. For safety reasons, I am going to finish removing the damaged eye and some loose thread from various places. Other than that, Phrog is still holding up and holds top toy spot. I have also found him very useful for dealing with anxiety; the squeaker can often distract her from her stressors and Phrog takes the abuse of her frustrations. Day 16 - Phrog is starting to show signs of mortal wounds. Lola has made it through the thicker layer around his arm and I can see the stuffing. It is only a matter of time before gets all the way through. Day 60 - Phrog still lives!!! I have done some surgery on Phrog to reinforce the fabric around his arms, but Franken-Phrog is still the favorite of all of the toys. She will even get brave enough to rescue Phrog from the evil vacuum when he is kidnapped and tortured. I am thinking about purchasing Phrog II for the inevitable day when Phrog goes off to the pet toyland in the sky, but for now, there is only one Phrog for Lola.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 6, 2018

recommand products