|商品尺寸||457.2 x 0.64 x 0.64 cm; 226.8 克|
|包装清单||15FT Black Subwoofer Cable|
|制造商||Mediabridge Products, LLC.|
Mediabridge ULTRA 系列低音炮电缆（4.83 米） - 双屏蔽镀金 RCA 到 RCA 连接器 - 黑色
Mediabridge ULTRA Series Subwoofer Cable (15 Feet) - Dual Shielded with Gold Plated RCA to RCA Connectors - Black
- 分叉式中心针确保高接触压力，而耐腐蚀镀金 RCA 连接器提供比一般卷轴电缆更宽的贴合度。
- 铜阴茎中心导线，绝缘，铝制编织和 2 层铝箔屏蔽，*大程度地防电磁干扰。 该电缆表面采用坚韧而易弯曲的 PVC 护套。
- 此电缆支持 Mediabridge 1 年有限质保。 包括可调节和可重复使用的魔术贴皮带，方便整理和存放。
- Ideal for connecting subwoofer speakers to Audio components, such as stereo receivers or sound systems, while offering excellent bass response and flexibility.
- Low-loss, wide spectrum coaxial cable great for the low-frequency signals produced by subwoofers, allowing for Deep and precise Audio quality.
- A split-tip center pin ensures high contact pressure, while corrosion-resistant gold-plated RCA connectors provide a consistently tighter fit than commonly rolled cables with wider tolerances.
- A copper clad center conductor, Dielectric insulation, aluminum braid and 2 layers of foil shielding, for max protection against EMI. The cable is finished in tough, yet pliable PVC jacket.
- This cable is backed by Mediabridge limited 1 year warranty. Includes adjustable & reusable Velcro cable strap for easy organization & storage.
MediabridgeTM ULTRA 系列低音炮电缆
将低音扬声器连接到音频组件，如立体声接收器或声音系统，同时提供卓越的低音响应和灵活性。 这种低损耗、宽频同轴电缆是低频扬声器产生的低频信号的理想介质，提供深 / 精确的音频质量。 采用铜阴茎中心导线，绝缘，铝制编织和 2 层铝箔屏蔽，自然声音，拒绝设备彼此附近时发生的幽默/静电。 分离式中心销确保高接触压力和传导性。 独特的抓握颜色编码模具和耐腐蚀镀金 RCA 连接器提供比一般卷轴电缆更紧密的贴合度，公差更大。 ULTRA 系列电缆采用优质材料制成，提供专业级输出。 这款电缆采用耐用但可弯曲的 PVC 夹克，安装方便。
- 耐腐蚀镀金 RCA 连接器，带分尖中心针，高接触压力和导电性
- 坚韧而灵活的 PVC 夹克
- 带 RCA 端口的设备，如低音炮、立体声接收器、声音系统或其他音频组件
- 与 S/Pdif 、数字和复合视频接口一起使用
也称为数字音频 / 视频同轴电缆或数字音频同轴电缆
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Some things to note:
- The cable is very thick due to the two layers of shielding, the outer layer being copper and the inner layer aluminum. Combine this with the PVC cover, and it's a very sturdy cable. There is a cost to this in that it isn't highly flexible. You aren't going to be getting 90 degree turns from this, so plan accordingly.
- The build quality of the connectors is excellent. A basic RCA connector has a single pin in the middle and four fins in a circle around the edge. The Mediabridge cable improves on this basic design in a couple of important ways. First, the center pin has been split down the middle. Why would this matter? It's because with the pin split, the two sides compress when the cable is inserted, creating active pressure on the inside of the port. The outer portion is also a single piece that has been cut into eight angled fins and is significantly thicker than a cheap basic cable. This makes for a stronger grip on the outer surface of the port and reduces the effect of the connector losing grip strength over time. This results in the connector putting pressure onto the port both from the inside and outside, in effect squeezing it from both sides, as opposed to a basic cable that grips from the exterior only. It does make insertion require a bit more force, but the result is a connection that is unlikely to vibrate out of the subwoofer port.
- It's gold plated. Gold is the second best metal conductor of electricity (after silver), about even with copper. Gold plating is used on connectors because it's an excellent conductor, and more corrosion resistant than silver or copper. The conductivity is actually the less important aspect here, as the steel that is being coated with gold would be perfectly adequate to provide a connection. The cable is carrying information, not power (like speaker wire) so there's no practicable difference between an adequate connection and a perfect one. The corrosion resistance is the important part - gold plated connectors don't rust like steel or tarnish like copper, both of which lower the conductivity over time. Zinc would also work for corrosion resistance, but it's less conductive than gold is. In short, anything more conductive would corrode with time, and anything with the same corrosion resistance isn't as good a conductor. Gold can also be applied in a very thin coat and still retain the corrosion resistance property, making it economical as well.
- It's double insulated and magnetically shielded. As the pictures show, there are five layers to this cable. The part carrying the signal is a relatively thin copper strand in the middle. Unlike with speaker wire, thicker isn't better because the cable is carrying information, not conducting power, which is supplied by the subwoofer, so you don't need a very thick cable. That strand is covered with a layer of foam dialectric insulation, followed by an aluminum mylar sheath, a copper sheath, and finally the PVC outer cover. The copper sheath provides magnetic shielding from the large magnet in the sub, the fields produced by the receiver, static electricity, and any signals the cable might otherwise pick up from the environment. All of these are picked up by the copper sheath, preventing them from getting to the cable carrying the signal. This shielding effectively creates a faraday cage for your entire cable. The alumnum mylar layer inside of that is highly reflective of any sort of electromagnetic radiation, which includes radio waves, heat, and all of those signals sent out by remotes and other wireless devices. The dialectric foam insulates the aluminum and copper layers from the inner, signal carrying copper strand. The effect is that you have a layer of physical insulation, magnetic insulation, electromagnetic insulation, and another layer of physical magnetic insulation. This cable will not transfer or pick up any signal other than the one coming from your receiver.
It's overkill in the protection department, four layers of protection, probably more than most people would ever need, but it's only $10 for the 15 foot cable, so it's not like you're throwing away money on protection you don't need. It's better to have it and not need it than the other way around.
The packaging was excellent, a simple cardboard box with a coiled cable inside. Easier to open and better protection from damage is a win-win over plastic clamshells.
My only regret is that I ordered a 15 foot cable when 8 feet would have been enough.
Hooking it up is a snap - plug one end (it doesn't matter which one) into the subwoofer out on the receiver (a Denon AVR S700W 7.2 network receiver), plug the other into the LFE input on the subwoofer LFE input, making sure both are well seated, and you're done. You can also use the left input if your sub doesn't have a dedicated LFE input and get the same effect. I believe Mediabridge also sells a similar cable with a Y splitter for those with right and left inputs as well, but LFE out to the left input works for most subwoofers just fine.