Audioquest Rocket 88 DBS (2 x 4m)

Audioquest Rocket 88 DBS, high-end speaker cable

At the top of Audioquest’s Rocket series, the Rocket 88 DBS brings together the brand’s in-house noise-reduction technologies in a factory-terminated, ready-to-connect speaker cable. Solid high-purity copper conductors, Double Star-Quad geometry, and active dielectric bias under 72 volts: three levers aimed at the same result, a silent background and detailed reproduction. Here’s what lies beneath its braided jacket.

Solid PSC+ copper against distortion

All Rocket 88 conductors are solid, with no strands. This choice eliminates one of the main causes of distortion in a cable: the electrical and magnetic interaction between multiple strands, which causes confused or hardened sound. The metal used is Perfect-Surface Copper+ (PSC+), the purest copper in the Audioquest catalog, whose very smooth surface limits distortion caused by the metal’s grain boundaries.

The skin effect, which pushes the signal toward the outer edge of the conductor at high frequencies, is kept out of the audio band thanks to conductor gauges calibrated below the threshold of audibility. The air-filled foamed polyethylene insulation reduces energy absorption that colors the signal. Each internal conductor is also direction-controlled to reduce the pickup of radio-frequency noise, which explains the connection direction marked on the jacket.

Double Star-Quad geometry in practice

Eight solid conductors distributed in two crossed star-quads: it is this arrangement, more than capacitance and inductance values alone, that shapes the cable’s sonic behavior. The crossing reduces time smearing of the signal while preserving dynamics and the clarity of the soundstage layers.

This structure offers a second possibility. When the two halves of the cable are separated at the speaker end, each star-quad retains its magnetic independence and the Rocket 88 becomes a true bi-wire set in a single cable. For those with speakers featuring dual binding posts, this is a practical advantage, without having to double the number of cables.

The 72-volt DBS system in everyday use

The Dielectric-Bias System maintains a constant 72-volt charge on the cable’s insulation. Just as the Earth’s magnetic field aligns compass needles, this electrostatic field aligns the insulation’s molecules in the same direction. The audible consequence: a quieter background, from which details and dynamic contrasts emerge that are often masked by non-polarized insulation.

The DBS is powered by a battery pack connected to the cable. A test button and an LED allow the charge status to be checked from time to time, and the battery lasts several years. Since the charge is active from assembly onward, the Rocket 88 requires no break-in period before delivering its full performance.

Carbon-based noise dissipation

Around the conductors, alternating layers of metal and carbon-loaded synthetics form shielding that “shields the shield,” in Audioquest’s words. The idea is to dissipate induced radio-frequency noise before it reaches the layer connected to ground, across a wide frequency band. This dissipation works together with the DBS and PSC+ copper to lower the overall noise floor.

Banana plugs or spades, how to terminate

The cable is available with banana plugs or spade lugs, gold- or silver-plated depending on the version. The connection between the plug and the conductor is made using the Cold-Weld process, a cold-pressure welding method under controlled pressure that mechanically bonds conductor and connector without heat, preserving the integrity of the copper.

The choice between banana and spade mainly depends on the amplifier’s binding posts. Insulated binding posts compliant with European standards, common on recent amplifiers, do not handle high-torque tightening on a spade lug well: banana plugs are then preferable, sometimes mandatory. On the speaker side, the spade regains the advantage when the binding post does not accept a fully inserted banana plug.

Technical specifications

Design and technologies

• Conductors: solid Perfect-Surface Copper+ (PSC+) copper
• Geometry: Double Star-Quad
• Directional conductors: signal direction control to reduce noise
• Noise reduction: carbon-based noise dissipation system
• Dielectric biasing: 72 V DBS system (Dielectric Bias System)
• Insulation: optimized materials to reduce dielectric distortion

Audio performance

• Clearer, more detailed sound
• Improved soundstage and spatial imaging
• Reduced RF noise and interference
• Better dynamics and tonal accuracy
• Faithful reproduction for hi-fi music and cinema

Key strengths

• Very low distortion
• Advanced noise-reduction technologies
• Excellent channel separation
• Great sonic transparency

Connectivity

• Available terminations
  • Banana plugs (gold- or silver-plated depending on version)
  • Spade lugs (spades)

Recommended use

• High-end stereo hi-fi systems
• Home theater installations (Dolby Atmos, DTS)
• Amplifiers, passive speakers, compatible soundbars

Construction and durability

• Robust cable designed for long-term use
• High-precision assembly
• Premium materials for mechanical and electrical stability
• Simple installation despite an advanced technical architecture