HOMER | Cement sound | Sound of Concrete | HC20BTS | Black Black

https://youtu.be/RKhn0nGfwks https://1.bp.blogspot.com/-f2G0n3KIpvc/Xpng98oAKEI/AAAAAAAAD3s/HeZoo1i_MSooO7z9HGeWKdPjhij_0MnuQCPcBGAYYCw/s1600/6688.jpg About design▼ HC20BTS is a micro-monitoring system, without excessively noisy bass, it is very sensitive to the quality of the sound source, and the lossless and high-resolution sound source will help to play its characteristics. In order to increase the hardness and weight of the box, reduce resonance, and improve the resolution, cement is used as the box material. In order to control the overall weight to about 6 kg, the design direction is to give priority to reducing the volume, and the distance between the two ears is used as the basic distance of the front reflection hole. The distance between the two monomers must be greater than this distance. Although the frequency response range of a single unit reaches 50Hz ~ 20kHz, the volume of the speaker is only 1/5 of the effective volume. Therefore, a two-way double inverted hole speaker is designed, that is, there are inverted holes in the front and rear, and the difference in path length and aperture size is helpful Separate different resonance frequencies and tune with internal sound-absorbing cotton to create a semi-enclosed speaker. Using a 160W power amplifier to drive an 8Ω 15W single unit is enough to cope with indoor spaces below 30 pings. The larger the space, the better the effect. If you want a speaker that does not take up space and has no messy wires, it can return simple living and expensive indoor space to you. HC20BTS audio actual playback recording audition (condenser microphone dual-channel independent recording, daily environment, non-no-noise room) ➦ https://1.bp.blogspot.com/-QC2i03QxevQ/XyZlPZ8fImI/AAAAAAAAD7U/r3CcCPleXw8Lwd-hoVQUYlRWKVYjrjL9ACLcBGAsYHQ/s200/TIPZF86PNR.png https://1.bp.blogspot.com/-_bDDb0z6V50/XpiiFlAfULI/AAAAAAAAD3Q/JPd9xBjVTRkS7wDiVe_-oLqG-FdYagG6wCPcBGAYYCw/s1600/222.gif Matters needing attention▼ HC 2 0 BTS is the result of cement and handicrafts. It will have color difference, pores, and slight unevenness. The upper and lower sides are the filling surface. The master uses pink light to make the surface. The upper heat dissipation hole must be wiped out without post-processing. These are the product features deliberately preserved by the design. They are natural beauty, flawed beauty, and a feeling. The products that are shipped out of the factory are products that meet the yield rate. If this is the product you are waiting for, I would like to thank you for your support. Order-made products are custom-made products, please think carefully before placing an order. https://1.bp.blogspot.com/-O7xw3EF_Pr0/Xpdf7Gh3vFI/AAAAAAAAD2s/oRmgQ915KdYsdKK_pkatDgnOi4XtQdVSQCLcBGAsYHQ/s1600/Webp.net-gifmaker.gif Specification▼ HOMER Bluetooth Speaker HC20BTS Effective frequency: 70 Hz~20 kHz Rated power: 15 W 8 Ω X 2 Sensitivity: 88 db Input voltage: Input AC 110-220 V / Output DC 19 V 4.74 A Input interface: 3.5 mm audio line input Machine size: 370 w × 120 d (145) × 100 h (110) mm (including protrusions) Weight: 5.0 ± 0.5 kg Machine configuration: external power adapter and power cord 2 unit of 3" Full-range speakers Frequency Responce: 70 Hz~20 kHz Power Handling Capacity: 15 W 8 Ω X 2 Sensitivity 88 db Input: AC 110-220 V / Output: DC 19 V 4.74 A AUX in: 3.5 mm Dimensions: 370 wx 145 dx 110 h mm (max) Weight: 5.0±0.5 kg DAC Output: Stereo Qualcomm® Kalimba™ DSP Qualcomm TrueWireless™ Technology Qualcomm® aptX™ audio technology Qualcomm® cVc™ audio technology Bluetooth Version: Bluetooth 5.0 Bluetooth Technology: Dual-mode Bluetooth Bluetooth Profiles: AVRCPv1.5, A2DP v1.3, HFP v1.7 Test the spectrum screen recording of the low frequency effect of the actual audio playback (note that the left side is 50 Hz, the video sound is the original sound source) ▼ https://youtu.be/OtKogYPGBm0 HC20BTS and the HC31SR Squarectabinet rectangular bookcase designed in 2012▼ https://1.bp.blogspot.com/---RaBx0ZXOs/XpniCk5XP7I/AAAAAAAAD30/OIDT-x040zAY4lKIiKEHq5f661Uq3oinQCLcBGAsYHQ/s640/666%2B1200.jpg 3 7 cm story▼ One day the designer wanted to see if the HC 20 BTS could fit into the rectangular bookcase designed 8 years ago. It turned out that it was also 37 cm. The designer himself wondered what special significance does the 37 cm have to him? It was already 3 o'clock in the middle of the night, and he looked at the origami clock on the wall, and the more he looked at it, the more he realized that the width of the clock was exactly 37 cm? ! The result is 37 cm! The designer is puzzled. He has never specified such a length in advance. 3 7 is not a lucky number. Later, he remembered that when he was making designs, he used to stretch out his hands to make gestures in front of him, with a width of 37 cm. That's how it came out, that is, the designer thinks that it is not too big or small. Although it feels very casual, the designer said that this is the most comfortable size for people to take things. https://1.bp.blogspot.com/-OsC1F-uWvXs/XpvmjBnk4nI/AAAAAAAAD4w/q683Jx-o0U4xjABQHKD3zGSaTylMEZd5wCLcBGAsYHQ/s1600/HC20BTS%2BZZ%2B2.jpg Precautions: Order-made products are custom-made products, please think carefully before placing an order.