Dayton Audio PC105-4 4" Full-Range Poly Cone Driver

Dayton Audio PC1054-4, 4" full range speaker -- big magnet, strong construction. Buying a 2 to 4 Watt practice guitar amp costs around $30 to $90 and will probably have 2" speakers. This build probably cost around the $90 range with the power supply I made. I put the speaker in a "Filthy Chooligan" cigar box I got at a local cigar shop. It just fit between the ribs. I wanted to preserve the label side of the box. I 3D printed a cover for the speaker and the box for the power supply. I used a TDA8932 mono digital amplifier board, also bought on Amazon. Something like $9 for two boards. With a Dremel tool, mounted the jack and power jack, as the wood has to be reduced to mount the jacks. I didn't put a power supply or batteries inside but two 9V USB rechargeable batteries in series would power it well enough and mount a USB-C charge jack on the outside -- cable on Amazon. It plugs into these batteries to charge them. Need a USB-C Y adapter to charge two batteries at once. I made a linear power supply - the other orange box on the right. The sound is clear and bright.

業務で簡易モニターとして屋外で使用してきた、YAMAHAのMS101Ⅱの交換ユニットとして購入しました。 ユニットのサイズですが、取り付け穴や奥行きフレームの大きさなど、ほぼ同じでした。 そのまま交換出来ると試みましたが、裏面からの取り付けでは、バッフルとフレームの間に、隙間が出来ます。 このユニットは、フレームの前面部分にガスケットが無く、代用品としてクッションテープを使う必要がありましたが、問題なく取り付ける事が出来ました。 交換後の音ですが、高密度かつフラットな周波数特性で解像感も高くモニター用途に最適な音だと思います。 交換前のユニットと比べると100Hz～12kHzから85Hz～15kHzくらいワイドになった感じで、中音域のもっさりした変な盛り上がりもなく、ソースを選びません。 耐久性はわかりませんが、エッジが厚めのゴム製なのでウレタンよりは長持ちしそうです。 業務で使うので、末永くこのユニットが販売されることを望みます。

When I ordered this Dayton Audio PC105-4 4" Full-Range Poly Cone Driver, I tried to cancel the order about 20 minutes later. It turned out that the speaker I mistakenly believed to be faulty was fine (it was a poor connection) and did not need to be replaced. Twenty minutes was too late, and the order could not be cancelled. It arrived about 14 hours later. I began processing a return of the product before the package had been opened. However, I was intrigued by the weight of the package. My curiosity got the best of me, so I opened it and was favorably impressed! I decided to remove the OEM speaker from its Logitech Z313 Speaker System Subwoofer enclosure. When the speakers were next to each other, the mass of the Dayton Audio PC105-4 was about twice that of the original. The quality of the materials & manufacturing is superior with Dayton Audio's product. After soldering the wiring to the new speaker and mounting it into the enclosure (with no modifications), I reconnected the rest of the wiring and the power. The real test was while it was in use. I was surprised in a good way! Typically, I do not listen to audio at high dB/SPLs (nor do I recommend it), but did so to gauge the efficiency of its power handling and output. It was amazing when I noticed that a sheet of paper sitting about a foot away began vibrating from the sonic shockwave... The dirt-cheap price and great quality are enough on their own to make this an awesome buy. Quick delivery, and the fact that I changed my mind to keep a product that I have no need of when I could have returned it for free, can only mean that gets two BIG thumbs up!

Nice full range speaker. The bass is deeper than I imagined it could be. Clear and crisp sound also. I replaced the speakers in my Spark amp with these.

These are very nice sounding speakers with surprising high range and easy to install with my Bluetooth amplifier