Audioquest Thunder C13

Low-Impedance 3-Pole AC Power Cable with Noise Dissipation

Pure Conductors: The meticulously crafted combination of Solid Long-Grain Copper (LGC) and Perfect-Surface Copper (PSC) conductors prevents interaction between strands, a significant source of fatiguing transient intermodulation distortion during listening. LGC produces a clearer and more uniform sound than standard Oxygen-Free-High-Conductivity (OFHC) copper. The surprisingly smooth and pure PSC copper further eliminates harshness and significantly enhances clarity compared to OFHC, OCC, 8N, and other high-quality copper types.

Uncompressed High-Current Transfer – “Thunder”: With a current capacity of 20 amperes RMS @ 125VAC 50/60Hz (16 amperes RMS @ 220-240VAC 50/60Hz), the “Thunder/High (Variable) Current” cable can withstand transient current spikes many times higher than its continuous RMS value (average). This makes the “Thunder/High (Variable) Current” perfectly suited for a wide range of AC power conditioners, current regenerators, AC isolation transformers, battery backup systems, as well as any power amplifier, powered subwoofer, powered speaker, powered receiver, or integrated amplifier.

72VDC Dielectric Bias System (U.S. Patent #7,126,055): The Solution All isolation functions as a dielectric, and their electrical properties impact signal integrity. AudioQuest’s multi-patented DBS system creates a strong and stable electrostatic field that saturates and polarizes (organizes) the insulation molecules. This minimizes non-linear delays, resulting in a clearer sound emerging from a “blacker” background. The Level-X RF Trap (technology developed for the “Niagara” power product series from AudioQuest) in the DBS battery pack “pulls” RF noise out of the cable, preventing RF from infiltrating the electronics. The DBS pack batteries have a lifespan of approximately 10 years. Use the test button to check their status.

Challenges: Alternative current (AC) power is far from perfect. This technology has been around for over a century and was never designed to meet the strict standards of today’s high-resolution audiovisual equipment. Power supply noise is present in the electrical grid, and it is exacerbated by induced radiofrequency noise (captured by the AC power cable) and coupled to the power supplies of devices and the circuit ground. This creates distortion and signal losses at low levels due to a “masking effect.” Moreover, power amplifiers may require significant transient current reserves to allow their power supply to react and stabilize during highly dynamic audio passages. Most AC power cables and power regenerators/conditioners, while useful to some extent, simply fall short.

The Solution: Pure Conductors: The carefully refined combination of Solid Long-Grain Copper (LGC) and Perfect-Surface Copper (PSC) conductors avoids interaction between strands, a significant source of fatiguing transient intermodulation distortion during listening. LGC produces a clearer and more uniform sound than standard Oxygen-Free-High-Conductivity (OFHC) copper. The surprisingly smooth and pure PSC copper further eliminates harshness and greatly enhances clarity compared to OFHC, OCC, 8N, and other high-quality copper types.

Uncompressed High-Current Transfer – “Thunder”: With a current capacity of 20 amperes RMS @ 125VAC 50/60Hz (16 amperes RMS @ 220-240VAC 50/60Hz), the “Thunder/High (Variable) Current” cable can withstand transient current spikes many times higher than its continuous RMS value (average). This makes the “Thunder/High (Variable) Current” perfectly suited for a wide range of AC power conditioners, current regenerators, AC isolation transformers, battery backup systems, as well as any power amplifier, powered subwoofer, powered speaker, powered receiver, or integrated amplifier.

• Ultra-Pure Conductors:
  • The carefully refined combination of solid long-grain copper (LGC) and perfect-surface copper (PSC) conductors prevents interaction between strands, a significant source of fatiguing transient intermodulation distortion.
  • LGC produces a clearer and more uniform sound than standard oxygen-free high-conductivity copper (OFHC).
  • The remarkably smooth and pure PSC copper further eliminates harshness in sound, significantly improving clarity compared to OFHC, OCC, 8N, and other high-quality coppers.
• RF/ND-Tech (Patented Radiofrequency Noise Dissipation):
  • U.S. Patent No. 8,988,168.
  • While AC ground wires provide protection against electrical short circuits, they also act as antennas susceptible to induced radiofrequency (RF) noise.
  • AudioQuest’s patented RF/ND technology significantly reduces this distortion, achieving unprecedented noise dissipation levels across the broadest RF bandwidth possible.
  • Our unique circuit topology employs a common-mode phase suppression network, along with exclusive dielectric materials, providing additional linear differential filtering.
• Uncompressed High-Current Transfer – “Thunder”:
  • With a current capacity of 20 amperes RMS @ 125VAC 50/60Hz (16 amperes RMS @ 220-240VA 50/60Hz), the “Thunder/High (Variable) Current” can withstand transient current peaks several times higher than its continuous RMS value.
  • This makes the “Thunder/High (Variable) Current” perfectly suited for a wide range of AC power conditioners, current regenerators, AC isolation transformers, and battery backup systems, as well as any power amplifier, powered subwoofer, active speaker, powered receiver, or integrated amplifier.
• 72V Dielectric Bias System (DBS) with Level-X RF Trap:
  • All insulation is also a dielectric, and its electrical properties affect signal integrity.
  • AudioQuest’s multi-patented DBS creates a strong and stable electrostatic field that saturates and polarizes (organizes) the molecules in the insulation.
  • This minimizes nonlinear delays, resulting in a clearer sound emerging from a “blacker” background. The Level-X RF trap (technology developed for AudioQuest’s “Niagara” power product series) in the DBS battery pack “pulls” RF noise out of the cable, preventing RF from infiltrating the electronics. The DBS pack batteries have a lifespan of approximately 10 years. Use the test button to check their status.
• Directionality:
  • All audio cables are directional. The correct orientation is determined by listening to each batch of metallic conductors used in each AudioQuest audio cable.
  • The direction of digital audio signal conductors is controlled in AudioQuest HDMI cables, and care is taken to lay out ARC (audio return channel) conductors in the opposite direction to ensure optimal performance of this function. Arrows are prominently displayed on connectors to ensure optimal sound quality.