オーディオデザイン
HAS-3S Pro | Ultimate Speaker & Amplifier Selector
Zero Signal Loss. Uncompromising Precision. The Pinnacle of Japanese Engineering.
The HAS-3S Pro is the flagship evolution of our acclaimed speaker selector series, designed for the most discerning audiophiles. While standard selectors often degrade sound quality through resistance and coloration, the Pro model is engineered to be virtually "invisible" in the signal path, preserving the full dynamic range and detail of your high-end system.
Key Features (Pro Edition)
- ■ Unrivaled Low Resistance (4mΩ)
Achieving an incredibly low terminal-to-terminal resistance of just 4mΩ, the HAS-3S Pro outperforms nearly every selector on the market. This ensures your amplifier's Damping Factor (DF) remains unaffected, maintaining tight, controlled bass and crystal-clear transients. - ■ SEIDEN Type 56 Silver Alloy Switch
Equipped with a world-class SEIDEN (Japan) rotary switch specifically developed for high-end audio. Featuring silver alloy contacts, it provides the lowest possible contact resistance and a lifetime of ultra-reliable, smooth operation. - ■ Fully BTL & Balanced Compatible
By switching both positive (+) and negative (-) lines simultaneously, the HAS-3S Pro is fully safe for all amplifier architectures, including high-power BTL (Bridge-Tied Load), balanced, and vacuum tube amplifiers. - ■ Massive, Vibration-Resistant Build
The Pro model features a heavy-duty 2.0kg chassis that remains stable even when connected to thick, heavy high-end cables. The 40mm solid aluminum machined knob offers a precise, weighted tactile experience. - ■ Premium Connectivity
Equipped with large, high-grade binding posts that accommodate bare wires (up to 5.5mm), spade lugs, and banana plugs. Generous spacing (35mm vertical) between terminals prevents accidental short circuits.
Applications
- Speaker Management: Route 1 high-end amplifier to up to 3 pairs of premium speakers.
- Amplifier Management: Connect 1 pair of speakers to up to 3 different power amplifiers (e.g., switching between Tube and Solid State).
Technical Specifications
| Input/Output Terminals | Gold-plated Binding Posts (Large type) |
|---|---|
| I/O Configuration | 3-to-1 or 1-to-3 (Bidirectional) |
| Switch Type | SEIDEN Type 56 (Silver alloy contacts) |
| Internal Resistance | 4mΩ (Terminal-to-terminal) |
| Dimensions (WxHxD) | 210 x 90 x 180 mm |
| Weight | 2.0 kg (4.4 lbs) |
| Country of Origin | Made in Japan |
The Pro Difference: For users with ultra-high-end systems where every milliohm counts, the HAS-3S Pro provides the ultimate peace of mind. Handcrafted in Tokyo, it represents the absolute limit of what is possible in passive signal switching.
