If you are wondering why not just use a generic printer cable for USB Audio, please read this article first.
As we step into the year 2025, we refresh the Signature Silver Gold series. We have three grades of USB Audio Cable made of silver gold alloy solid wires:
- AA SG
- AA SiG
- AA SiG XT
Both AA SG (Silver Gold) and AA SiG (Signature Silver Gold) use silver + 1% gold alloy solid wires but different sizes. The SG uses smaller gauge while SiG uses larger gauge solid wires for data pair. They also use similar high-quality USB plugs with 30µ inch gold plating for reliable contacts.
The SiG family has two grades depending on the materials used for power delivery (VBUS and GND). The 2025 refresh adds separate sleeves to the data and power shields. We also added a novel mechanism to the originally rigid data shield to make the cable more flexible when orienting the USB plugs.

The SG (Silver Gold) USB Cable
AA SG USB Cable is priced reasonably low but performs at higher level than its asking price. By using smaller gauge silver gold wires for data, we are able to reduce the cost without compromising its performance too much. The AA SG USB is suitable for buyers not willing to spend too much but still want good sound from an entry-level USB cable.

The SiG (Signature Silver Gold) USB Cable (Mk2)
It took us 3 years to develop and refine the SiG series USB cables. We compared our USB cables with the megabucks USB cables which we borrowed and/or compared in bespoke showrooms. We also received valuable feedback from testers, customers, and reviewers which we took seriously. We experimented with various materials, geometries, shielding techniques, and USB plugs.
The two grades of the SiG series USB family are as follow, listed from entry-level to the flagship:
- AA SiG USB
- AA SiG XT
SiG USB Cable (Mk2)
This is the entry-level SiG family. It uses UP-OCC copper solid wires for power delivery. Our SiG USB is priced around the most popular / highly recommended mid-priced USB cables but it performs at higher level than its asking price.
The SiG USB is very musical and is suitable for those who love the sound of copper cables.

SiG XT USB Cable (Mk2)
Using exotic pure silver solid core wires for power delivery resulted in groundbreaking performance within our SiG family. The SiG XT USB has full-bodied sound, large/wide soundstage, layered bass, and refined details balanced with musicality. This is the best-sounding USB audio cable we have developed to date.

Voicing Considerations
Some other USB Audio cable manufacturers openly said in forums that they deviate from USB specifications to get the sound they prefer, i.e. voicing by listening. We do it differently. While we listen to each cable we developed in various systems, getting the data pair characteristic impedance as close as possible to 90 Ω is our goal. During cable construction, the data pair impedance is measured with VNA. Sometimes it can take more than one iteration before we are happy with the measurements.
It is also important to note that when the USB cable is bent versus straight, the impedance value differs slightly. We take the average when publishing the impedance value of the cables.
Materials Used
Materials Used | SG | SiG | SiG XT |
UP-OCC copper for VBUS & GND | 20ga | 20ga | |
Pure silver for VBUS & GND | 18ga | ||
Silver + 1% gold for data pair | 24ga | 18ga | 18ga |
Sleeving for power | Teflon | Teflon | |
Sleeving for data pair | Teflon | Teflon | Teflon |
Dampener sleeving for data pair | Silk | Silk | |
Gold-plating thickness of USB plugs | 30µ | 30µ | 30u |
EMI braided sleeves for power | Yes | Yes | |
EMI braided sleeves for data pair | Yes | Yes | Yes |
Available Length
Our silver gold USB Audio cables are custom-made per the length specified by customer, from 0.6m to 1.2m for SG and 0.8m to 1.5m for SiG family. Please check the price in our Store.
Home Audition
If you are in Malaysia, please contact our dealer if you would like to try AA USB Audio Cables in your own system.
Company | Statement Systems |
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Address | Blk B-27-G, Jaya One 72A Jalan Profesor Diraja Ungku Aziz 46200 Petaling Jaya Selangor, Malaysia |
PIC* | Mr Terry Tay (+60 12-473 3005) |
*Person In Charge
We have 14-day return policy for international customers. Terms and conditions apply.