不只木吉他，電吉他也有空心的!!
大部份的電吉他與木吉他其中一個最明顯的分別是實心與空心，空心琴身有響孔的就是木吉他，而電吉他就是一整塊實心木頭的琴身。
但事實上，電吉他都有空心的，另外還有半空心以及挖洞減重等的設計，它們是為了因應不同的曲風和音色，樂手們亦會對特定設計有偏愛。
各種的琴身設計都有它們的特別之處，以下會逐一介紹。
實心吉他(Solid body)
(Source: https://www.musicradar.com/reviews/guitars/taylor-solidbody-classic-128429)
9成的電吉他都是實心設計。一整塊實木的琴身是製作難度較低的，所以能夠快速生產，並有多變的外型和款式，一般琴身比較薄，為了避免過重。
實心吉他有一整塊完整的琴身可以振動，所以會有較好的延音和扎實的低頻，合適多種音樂。
實心的設計會出現較少因高音量和高Gain產生的回授(Feedback)。
常見的實心琴身作法是會用兩片紋路相近的木頭黏合成一塊，較粗劣的琴身製造會用到5塊或以上的木頭接拼，這樣造對延音表現有負面影響。
(Source: http://www.guitargearforum.com/forum/viewtopic.php?f=5&t=46913)
空心吉他(Hollow Body)
(Source: https://stringjoy.com/hollow-and-semi-hollow-body-guitars-the-complete-guide/)
顧名思義，空心吉他的內部是完全空心的，為了加大原聲的共鳴音量，最早的電吉他是空心吉他，在很多方面最接近原聲吉他。空心吉他比實心吉他做的更厚，對於習慣彈奏木吉他的樂手來說，空心吉他可以更好的上手，多數會在正面左右側開F字型的響孔，有如小提琴般典雅。
空心電吉他具有最強勁的低頻但最少的延音，中空的設計也更容易收到喇叭送出的訊號而產生回授(Feedback) ，不過會使用空心吉他的樂手通常不會有High Gain音色的需求。
這些吉他又被稱為“爵士盒”吉他，因為爵士樂手往往喜歡它們溫暖、圓潤的音色。雖然有部份搖滾樂手會用空心吉他，但總括來說，尋求溫暖、乾淨的吉他聲音的人往往更喜歡空心吉他。
(Source: https://www.oatesguitars.com/how-theyre-made)
半空心吉他(Semi-Hollow Body)
(Source: https://spinditty.com/instruments-gear/Best-Semi-Hollow-Body-Guitar)
半空心吉他介於在實心和空心吉他之間。半空心外型和空心吉他很像，但結構完全不同。半空心兩側也有挖空，但在中間安裝拾音器和搖座的部位是實心的，這有效減少Feedback。由於不易Feedback，搖滾、藍調等樂風也能勝任，十分廣泛。
半空心吉他提供非常溫暖的音色和非常共鳴的聲音。延音稍短於實心吉他，共鳴略少於空心吉他；相對的延音也比空心吉他多上許多，共鳴感也比實心吉他明顯不少，半空心琴身吉他通常也比實心琴身吉他輕。
如果想要追求充滿空氣感的共鳴聲，又不希望會嚴重Feedback的話，半空心吉他會是很適合的一個選擇。
(Source: https://www.quora.com/Should-you-humidify-a-hollow-body-or-a-semi-hollow-body-guitar)
挖洞減重吉他(Chambered Body)
(Source: http://bluesguitarunleashed.com/forum/index.php?threads/chambering-a-solidbody.23008/)
較重的實心吉他揹久了對肩膀做成負擔，所以有製琴師決定挖掉一些木頭，降低琴身的重量，這就是挖洞減重吉他 (Chambered吉他) 的由來。
Chambered吉他的目的主要是減重，音色上希望能跟實心吉他盡可能地接近。所以去除的木頭不會像半空心或空心吉他那麼多，通常減少1/4到1/3左右的重量。這同樣會增加些許共鳴，低頻也會比較柔和，由於外觀是密封的，所以也不太有回授（Feedback）的問題。。
雖然實心吉他和Chambered吉他沒法從外觀判斷，但有一個簡單的方法可以辨別，用手輕輕敲琴身的表面，如果感覺是中空的部分，那應該就是Chambered吉他。
(Source: https://www.mylespaul.com/threads/i-didnt-do-my-homework-before.416985/)
逆月音樂為大家提供不類型的電吉他 – 立即遊覽
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Not only acoustic guitars, electric guitars can also be hollow!!
One of the most obvious differences between most electric guitars and acoustic guitars is solid and hollow. Hollow guitars with sound holes are acoustic guitars, and electric guitars are a solid wood body.
But in fact, electric guitars can be hollow as well, and there are also semi-hollow and chambered body to reduce weight. They are designed to respond to different styles and timbres, and musicians also have a preference for specific designs.
Various body designs have their special features, which will be introduced one by one below.
Solid body
(Source: https://www.musicradar.com/reviews/guitars/taylor-solidbody-classic-128429)
Ninety percent of electric guitars are solid designs. A solid wood body is less difficult to make, so it can be manufacture quickly, and has a variety of appearances and styles. Generally, the body is relatively thin, in order to avoid being too heavy.
A solid guitar has a whole body that can vibrate, so it has better sustain and solid low frequency sound, which is suitable for a variety of music genre.
The solid design will have less feedback when it is playing with high volume and high gain.
The common method of solid body is to glue two pieces of wood with similar texture into one piece. For some coarser manufacture of the body, 5 or more pieces of wood are used to join together. This will have a negative impact on the sustain performance.
Hollow Body
(Source: https://stringjoy.com/hollow-and-semi-hollow-body-guitars-the-complete-guide/)
As the name suggests, the hollow guitar is completely hollow inside. In order to increase the resonance volume of the acoustic, the earliest electric guitar is the hollow guitar, which is the closest to the acoustic guitar in many respects. Hollow guitars are thicker than solid guitars. For musicians who are accustomed to playing acoustic guitars, hollow guitars can be better used. Most of them have F-shaped sound holes on the left and right sides of the front, which looks as elegant as a violin.
The hollow electric guitar has the strongest low frequency sound but the least sustain. The hollow design is also easier to receive the signal sent by the speaker and generate feedback, but the musicians who use the hollow guitar usually do not have the High Gain sound. need.
These guitars are also known as "jazz box" guitars, because jazz musicians often like their warm, round sound. Although some rock musicians use hollow guitars, in general, those who seek a warm, clean guitar sound tend to prefer hollow guitars.
(Source: https://www.oatesguitars.com/how-theyre-made)
Semi-Hollow Body
(Source: https://spinditty.com/instruments-gear/Best-Semi-Hollow-Body-Guitar)
Semi-hollow guitars are somewhere between solid and hollow guitars. The semi-hollow shape is similar to the hollow guitar, but the structure is completely different. There are also hollows on both sides of the semi-hollow, but the part where the pickup is installed in the middle is solid, which effectively reduces the feedback. Because it is not easy to feedback, rock, blues and other music styles are also competent and very wide.
The semi-hollow guitar provides a very warm tone and a very resonant sound. The sustain is slightly shorter than the solid guitar, and the resonance is slightly less than that of the hollow guitar; the relative sustain is much more than that of the hollow guitar, and the resonance is much more obvious than that of the solid guitar. The semi-hollow guitar is usually lighter than the solid guitar.
If you want to pursue an airy resonance, but don't want serious feedback, a semi-hollow guitar will be a very suitable choice.
(Source: https://www.quora.com/Should-you-humidify-a-hollow-body-or-a-semi-hollow-body-guitar)
Chambered Body
(Source: http://bluesguitarunleashed.com/forum/index.php?threads/chambering-a-solidbody.23008/)
The back of the heavier solid guitar is a burden on the shoulders for a long time, so some guitar makers decided to dig out some wood to reduce the weight of the body. This is the origin of the Chambered guitar.
The main purpose of the Chambered guitar is to reduce weight, and hope to be as close as possible to the solid guitar in tone. Therefore, the wood removed will not be as much as a semi-hollow or hollow guitar, and the weight is usually reduced by about 1/4 to 1/3. This will also increase a little resonance, and the low frequency will be softer. Since the appearance is sealed, there is no feedback problem.
Although solid guitars and Chambered guitars cannot be judged by their appearance, there is a simple way to distinguish them. Tap the surface of the body lightly with your hands. If it feels like a hollow part, it should be a Chambered guitar.
(Source: https://www.mylespaul.com/threads/i-didnt-do-my-homework-before.416985/)
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