PROEL BULK550LU3 - Bulk Series "Y" Insertion Cable, Stereo TRS Jack to 2 x Mono RCA (3 Meters)
The Proel BULK550LU3 is a professional audio cable designed to provide reliable and durable connectivity solutions for recording, live sound, and fixed installations. Part of Proel's renowned Bulk Series , this model stands out for its robust construction and transparent sound performance, making it ideal for musicians, sound engineers, and DJs who need to interconnect equipment with different input and output standards.
This Y-shaped setup cable (or insert cable) is 3 meters long, allowing for a comfortable operating distance without compromising signal integrity. One end features a molded 6.3 mm (1/4") stereo jack connector, while the other end splits into two mono RCA connectors (typically red and white/black for left and right channels or send and return). Its molded design provides excellent protection against strain and heavy use, ensuring that the internal solder joints remain intact even under the stress of continuous setup and teardown on stage.
Made with high-quality materials, the BULK550LU3 uses copper conductors that minimize transmission loss, while its flexible PVC outer coating makes it easy to handle and coil, avoiding the annoying tangles common in lower-category cables.
Main features
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Heavy-Duty Molded Connectors: The Jack and RCA connectors are encapsulated in a robust plastic molding that protects the terminations and provides an ergonomic grip for safe connection and disconnection.
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Versatile Length: Its 3 meters in length offer the necessary flexibility to connect equipment in racks, mixing consoles or DJ booths without the cable being taut.
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"Y" configuration (Splitter): Designed to split a stereo signal into two mono channels (L/R) or to function as an insert cable (send/return) on mixing consoles.
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Effective Isolation: The PVC cover and internal shielding protect the signal against electromagnetic interference and parasitic noise, ensuring clean audio.
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Superior Flexibility: The cable maintains its flexibility even after repeated use, making it easy to run behind furniture, racks, or on stage.
Product benefits
The main benefit of the Proel BULK550LU3 is its reliability at an affordable price. Unlike generic cables, Proel's Bulk series undergoes rigorous quality control to ensure there will be no noise from poor connections at critical moments. It's an essential tool in any sound engineer's or musician's kit, as it instantly resolves connector incompatibility issues (Jack to RCA).
Furthermore, its molded construction makes it especially resistant to moisture and dust, common factors in bars, nightclubs and outdoor events, extending the life of the investment.
Use cases
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Effects Insertion: Connect the "Insert" port of a channel on a mixing console (TRS Jack) to an external effects processor, compressor, or equalizer that uses RCA inputs and outputs.
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Connecting Interfaces to DJ Mixers: Take an audio interface or synthesizer with a 6.3mm stereo jack output and connect it to the RCA line inputs (CD/Line) of a DJ mixer.
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Instrument Output: Connect keyboards or drum machines with headphone output or single stereo output to hi-fi systems or amplifiers with RCA inputs.
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Audio Splitter: Separates a stereo signal from a TRS jack into two independent mono signals to send them to different destinations.
Frequently Asked Questions
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Is this cable balanced?
No. Although the Jack connector is TRS (Tip-Ring-Sleeve), in this configuration it is used to carry two unbalanced signals (Left/Right or Send/Return) and separate them into two unbalanced RCA connectors.
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Can it be used to connect a mobile phone to a stereo system?
It depends. Most phones have a mini-jack (3.5mm) output. This cable has a larger jack (6.3mm). You would need a 3.5mm to 6.3mm adapter to use it with a phone, although ideally you should look for the equivalent model with a native 3.5mm connector.
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How do I identify RCA channels?
RCA connectors are usually color-coded (typically White and Red) or marked to distinguish between the left channel (Jack Tip) and the right channel (Jack Ring).
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Are the connectors metal or plastic?
In this specific model of the Bulk series (550LU3), the connectors are molded (high-density injection-molded plastic) to offer greater mechanical strength and stress relief at the cable-connector joint.
Project description
Bulk Series Professional Audio Insert/Adapter Cable, model BULK550LU3. Y-shaped configuration with a 6.3 mm male stereo jack (TRS) connector on one end and two male mono RCA connectors on the other. Total length 3 meters. Constructed with molded connectors featuring integrated strain relief and nickel-plated contacts. Cable with flexible black PVC jacket and oxygen-free copper (OFC) conductors for unbalanced audio signal transmission.
