If you are a home theater audiophile, you will definitely sneak at this title: "Is this nonsense? One more subwoofer is definitely better than a single subwoofer!" Indeed, with the effect of two identical subwoofers, sure It is much better than a single effect, which is the result of countless people practicing. But this is not the subject of this article. What are the comparisons between two small dots, a cheaper subwoofer, and a larger subwoofer? In fact, this is the problem many people face. The typical situation is, how can the subwoofer at home not listen to the ear, get out of buying a good and bleeding too much, and then buy a same composition of double guns will it be good? This article is basically based on an interesting experiment by Gene Dellasala, the founder of the famous AV website Audiooholics. In one of his rooms for his family to watch a movie, an Axiom EP500 has been shouldering the burden of the bass alone. Gene is generally quite satisfied with the EP500. It is located in a large and high room. The EP500 can basically shake the whole room, which is quite good. However, his dissatisfaction is that the effect of the single shot is still relatively obvious, especially in a seat closer to the gun, it is easy to detect the presence of the gun. In terms of sound quality, there is also a clear difference between the emperor's position and the seat closer to the gun. Since Gene's mother-in-law usually sits close to the gun, Gene finds a good reason to convince his wife to remodel the bass system in this room. Welcome to China Home Theater Network For the beauty of the room, Gene chose two smaller subwoofers - the same as the Axiom EP400. This also provides a good opportunity for comparison. The EP500 is a 12-inch subwoofer, while the EP400 is just an 8-inch subwoofer. The power of the two is the same, the same is 500 watts. The maximum sound pressure that the EP500 can provide is 109dB, which is exactly the level of two EP400 (106dB). However, indicators such as sound pressure are not too important. The key is sound quality, and whether the bass is integrated with the surrounding surround speakers. The original EP500 was placed in a corner of the room. One EP400 is placed on top of it and the other is placed in a diagonal corner. Both are symmetrical for the emperor, which is also the way Gene proposes to place double guns. After some tuning of the system, Gene used a professional audio analyzer to measure the sound pressure curve over the entire frequency band. The picture below shows the test results of the emperor. The purple curve is a single EP500 and the green curve is a double EP400. It can be seen that the green curve is generally very stable, while the purple curve has a significant subsidence around 48 Hz. The dual Ep400 is +/-3dB in the range of 20 to 90 Hz, and the result is arguably very good considering that there is no electronic correction for the room. Next, Gene tested the original position with poor sense of hearing. Similarly, the dual EP400 is much smoother than the single EP500. Finally, Gene turned the volume to almost the maximum, this time still the double EP400 victory. After the instrument has been tested, it needs to be verified by the sense of hearing. Gene first tested with stereo music, and he set the amplifier in PLIIx Music mode. The content selected is a single by Will Smith. When using a single EP500, the bass dive is good, but the subwoofer can be felt and it doesn't sound too compact. Switching to the dual EP400 produced a huge difference, the bass no longer felt to be coming from the front left, but turned into the vicinity of the middle of the two main speakers. The effect of the two subwoofers is no longer the "two" subwoofers, but a "virtual" subwoofer. This is exactly what the bass should have! And, the combined effect of the two sounds more compact, with more mid-range low-frequency impact. This effect is convincing. Next, test the deeper low frequencies. Gene turned on Rhapsody on his Yamaha Z7 amplifier and chose some channels with particularly strong low-frequency content - not good, but suitable for testing low-frequency dive. This time, the single EP500 can be said to have won a great victory, and the dive is extremely deep. It feels that the wall can be shaken and shivered. Although the dual EP400 has a similar effect, it is much lighter in degree. In general, the EP500 has a lot more sense in the particularly low frequency range. Welcome to China Home Theater Network Then Gene took out the DVD-Audio disc of Beatles's Love album and listened to two of the two most powerful songs: Tomorrow Never Knows and Hear Comes the Sun. In the middle of the Tomorrow Never Knows deeper bass, the EP500 still has a little more volume, but the texture is obviously much better than the dual EP400. In terms of the overall frequency response, the effect of the dual EP400 sounds much smoother. And they are almost perfectly integrated with the main speakers. At the position where Gene's mother-in-law is sitting, the advantages of the dual EP400 are even more obvious. With a single EP500, its sense of presence often attracts attention. The double EP400 sounds like a whole and makes people happy. When listening to Hear Comes the Sun, the dual EP400 works better than the EP500. Finally, Gene released some movies, including Star Wars III: Revenge of Sith and Horton Hears a Who!. The listening experience is basically similar to the experience of listening to music. Both configurations performed well when the spacecraft in the scene at the beginning of Star Wars 3 exploded, but the EP500 once again exposed its position. During the listening process, Gene was considered to be a deeper EP500, but after listening for a while, he was conquered by the double EP400 smooth frequency response and the compact mid-range low frequency effect. Looking at the Gene test, I think you must understand the benefits of the dual subwoofer. Even two smaller subwoofers may end up better than a larger subwoofer. When you plan your home theater, you may wish to consider double guns as a consideration. Generally speaking, there will always be good results. Especially when your temporary budget is limited, why not buy one first, lay a good line, and wait until the time is ripe to complete it? Manila Power Socket,Philippines Travel Plug,Philippine Electric Socket,Power Outlets In The Philippines Heikki Technology Co., Ltd. , https://www.heikkipower.com
