The Real Cable SUB1801 is a mono audio cable specifically designed to connect your subwoofer to your amplifier or home theater system. A product of the expertise of the French brand Real Cable, this high-end cable has been meticulously crafted to ensure faithful and precise transmission of the lowest frequencies, essential for an immersive and realistic listening experience.
Thanks to its careful design and the use of superior quality materials, the SUB1801 allows you to make the most of your subwoofer’s performance. It highlights the full dynamics and depth of the sub-bass, delivering powerful and detailed sound that immerses you in the heart of your movies and music.
The Real Cable SUB1801 stands out with its sophisticated design, the result of cutting-edge technical expertise. It uses bi-metal conductors combining 99.99% oxygen-free copper and silver, providing excellent conductivity for lossless audio signal transmission.
The TDC (Time Differential Conductors) technology implemented in this cable uses strands of two different sections. This configuration ensures a constant propagation time across the entire bandwidth, from sub-bass to higher bass frequencies. The result is great precision in the reproduction of attacks and transients, for bass that is both fast, tight, and perfectly defined.
Additionally, the SUB1801 features triple shielding for optimal protection against electromagnetic interference. The thick conductor section and careful insulation guarantee lossless transmission, even over long distances. This allows you to place your subwoofer at a distance from your amplifier without fearing a degradation in sound quality.
The Real Cable SUB1801 is equipped with one-piece metal RCA (Cinch) plugs, featuring the exclusive TwistLock technology. This rotational locking system ensures optimal cable retention in the sockets, providing a stable and secure connection, safe from accidental disconnections.
The connector contacts are 24-carat gold-plated for maximum conductivity and resistance to oxidation. They are hand-soldered with silver for a perfect and durable electrical connection with the copper and silver conductors. The cable is terminated on one end with a straight RCA plug and on the other with an angled RCA plug, for easy integration into your setup.
Whether you own an active subwoofer with built-in amplification or a passive subwoofer requiring an external amplifier, the Real Cable SUB1801 adapts to all configurations. Its balanced design and perfectly controlled impedance make it the ideal companion for all subwoofer models on the market, from the most affordable to the most high-end.
Available in various lengths, from 1 meter to 7.5 meters, this cable gives you complete flexibility in positioning your subwoofer relative to the rest of your system. This way, you can enjoy optimal bass performance by placing your subwoofer in the most acoustically favorable location, without being constrained by the cable length.
With the Real Cable SUB1801, elevate your movies and music by enhancing the performance of your subwoofer. This premium cable adds impact, realism, and immersion to your home theater or hi-fi setup. Rediscover your favorite works with unprecedented depth and intensity.
Designed and manufactured in France, the SUB1801 benefits from Real Cable’s expertise in high-end audio cables. Each cable is meticulously assembled and inspected to ensure consistent quality and optimal performance. By choosing this model, you are opting for a durable product that will accompany you for many years in your pursuit of musical and cinematic emotion.
What is the difference between a subwoofer cable and a standard RCA cable?
A subwoofer cable like the Real Cable SUB1801 is specifically designed to transmit very low-frequency signals, below 100 Hz. It features suitable impedance and a large gauge to carry the necessary power to the bass speakers without loss. A standard RCA cable, used for high-frequency modulations, does not offer the same characteristics and performance in the bass range.
What cable length should I choose for my subwoofer?
The ideal length depends on your setup configuration and the position of your subwoofer relative to the amplifier. It is best to opt for the shortest possible length to minimize line losses. However, the Real Cable SUB1801 offers excellent performance up to 10 meters long. Choose the length that allows you to place your subwoofer in the most acoustically favorable position.
My amplifier and subwoofer have different connectors (RCA and XLR). Can I use the SUB1801?
The Real Cable SUB1801 is terminated with RCA (Cinch) connectors. If your amplifier and/or subwoofer use balanced XLR connectors, you will need to use an RCA/XLR adapter or choose another cable model. Real Cable offers subwoofer cables equipped with XLR plugs, suitable for this type of configuration.
Can I use the Real Cable SUB1801 with a wireless subwoofer?
No, the SUB1801 is a physical connection cable between the amplifier and the subwoofer. It is not compatible with wireless subwoofer systems, which use radio frequency (RF) or Wi-Fi transmission between a transmitter and a receiver. For this type of setup, you need to use the wireless system specifically designed for your subwoofer model.
My subwoofer has two RCA inputs. Do I need two SUB1801 cables?
No, one cable is sufficient. The two RCA inputs on many subwoofers are parallel inputs for more connection flexibility. It is unnecessary to connect both to the amplifier. A single connection with a SUB1801 cable will adequately power your subwoofer and deliver the best performance.
Can the SUB1801 cable be used to connect other elements of my hi-fi system?
Technically, you can use the SUB1801 as an interconnect cable between any sources and amplifiers equipped with RCA jacks. However, since this cable is specifically designed for carrying very low-frequency signals, it won’t fully express its potential on midrange and high frequencies. For connections between your other hi-fi components, it’s better to use suitable cables, such as the Real Cable TX or ESSENTIEL interconnect cables, for example.
Christophe
Mainly bought it for its 90° connector so I could place my subwoofer as close to the wall as possible without the cable getting in the way; it meets all my expectations.
Comment from February 27, 2026 — Experience from February 16, 2026
Toni
Impeccable, just a shame that the 90° connector is only on one side; it could help save space behind each connected component. Neat finish and quality feel.
Comment from November 15, 2025 — Experience from November 03, 2025
Sébastien
Very good subwoofer cable. A thick cable that delivers impeccable performance in both sound quality and finish.
The angled connector is very practical for a cable of this diameter, and the locking mechanism behind the amplifier is perfect. I am never disappointed by the Real Cable brand.
Comment from January 01, 2025 — Experience from December 21, 2024
