Sound box overhauled with original box Columbia No. 9 Good quality From Japan
9 overhauled sound box with valuable original box. The sound quality is very good!
This is for those who want to enjoy SP records with good sound quality? This is an overhauled product, so you can enjoy higher-grade sound quality! This has the same outlet as No. This sound box has been completely disassembled and cleaned!! The 12 ball bearings have also been stripped of rust and coated with molybdenum grease.
The rubber gasket has been replaced with a good genuine used item. Since it has been adjusted, the damping is effective and the sound quality is rich and crisp, and it goes all the way to the low range. The diaphragm of the included No.
9 sound box is in near mint condition. There is no deterioration in the diaphragm, and the sound quality and sound pressure are close to new. As you can see in the images, there is no deterioration, tearing, tearing, corrosion, softening, etc. A sound box that is in good condition including the exterior will be valuable!
We tend to focus on the condition of the mainspring motor, but the condition of the sound box determines the quality of the sound. Most sound boxes still have rubber gaskets from 50 to 90 years ago, so they have deteriorated over time. It may have melted, or it may have hardened and solidified. In such a situation, the proper vibration from the record stylus cannot be sent to the horn through the tone arm.
The sound quality is poor. Most people sell their products in this condition with the description that the sound quality is good, but.. Personally, I don't think so. The only way to send proper vibration to the diaphragm and improve sound quality is to replace it with a new rubber gasket.15 sound boxes, it is important to remove the two rubber gaskets and inspect the outer circumference of the diaphragm on the front and back sides where the rubber gaskets were sandwiched. Even if the exterior is beautiful, there is a 70% chance that the diaphragm will be corroded or damaged. In most cases, the rubber gasket is stuck to the diaphragm, so it is difficult to remove it without damaging the diaphragm. We can remove the old rubber gasket that is stuck to the diaphragm without damaging the diaphragm. Unless you can check the condition of the diaphragm with the two rubber gaskets removed, you will not know the condition of the diaphragm, which is important for sound quality.
The images taken during disassembly are important, and the condition of the diaphragm can be determined from the images. Even specialty stores do not easily overhaul sound boxes. We have experience in overhauling approximately 600 sound boxes, so you can use us with confidence. Please attach it to your favorite gramophone! Please understand that this is an antique item before purchasing.
We also have high quality antiques and phonographs for sale. Items are to Japanese specifications.
All electrical appliances are 100V compatible.