4D Furnishers Stereo Amplifier for 4 Speakers with Bluetooth VD99 (20.06.2023) 200 Watts

It's been almost a week since I got the amp, and I'm using it for Bose 201 (series V) speakers.It's around 1.5 ft. wide and nearly 1ft deep and around 4 inch height. So, it is not very compact. Build is good, strong enough. Looks OK. It has got rubber feet in the corners which is good.I tried out several things so far, but not all. So far, everything I tried worked as described/expected - AMP (for TV/laptop connected via RCA 2-1 cable), Bluetooth, FM radio and AUX (again for TV/laptop connected 3.5 mm 1-1 cable). There are knobs to control bass and treble. Overall operation is easy; just needs a bit of time to familiarize.And there is a cute remote. However, it works only for one particular source - FM/USB - under which there are FM radio, Bluetooth and AUX. It does not work for the source AMP, which is not a defect in the product, but a known limitation by design.Sound output is good; it perhaps depends on the speakers too, so I'm not sure how much responsible an amp is for the good or bad quality of sound.Overall, the product just does the job and does it fairly well too.A few things that can be improved:There is some background noise - it is not zero, but it is not audible from a few feet away and not certainly when playing music. So, practically, that is not a real issue.A knob to control mid-range too would be good.Some additional attention may be paid to the finishing of the product which can take it to a different level. For example, one of the knobs is a bit tight, which could be made smooth.Warning: FM radio volume is too much, in the sense that just turning a little bit from the zero level gives a lot of volume. One needs to be careful about the volume level when switching from Bluetooth (or other modes) to FM radio, because what may be normal volume level in Bluetooth mode would be too high in FM radio, so there would be a sudden jump in the volume level. If possible, this should be rectified.Overall, it's excellent value. I don't think I saw any other amp that has as many features as this one in the price range 4-5K. Other brands like Yamaha are much more expensive. But, I haven't used any other amp from brands like Yamaha, so I don't know how this compares to them, especially in terms of sound quality.And the seller is excellent in responding to questions before and after purchase, which gives one confidence about the purchase.Update: The issue I mentioned above in the Warning turns out to be a pretty non-ignorable one. Let's say I'm using the amp in bluetooth mode, playing music at "normal" volume level. Then, let's say power goes off. Once power comes back, the amp will start automatically in the FM radio mode because that is the first mode when FM/USB source is on. Then, as I said above, what is normal volume level for bluetooth mode becomes too high for FM radio, so one would hear very loud sound. I experienced the issue on a couple of occasions so far. Fortunately, I was at home (rather than going out when power was gone), so I could immediately reduce the volume, etc. But what if you went out after power was gone and power comes back before you did!! So, now I've sort of made it a habit to keep the volume on the amp at zero whenever power goes off, or when switching the modes. That's obviously not a convenient thing, and one may forget at times. So, the issue should be fixed in the product rather than the user finding ways of working around.Update: I've noticed recently that there is a kind of beep sound that keeps coming when the amp is in Bluetooth mode. This continuous beep-like sound is in addition to the background noise. The beep sound can be more clearly heard when the player starts playing a music/song file but the music/song hasn't yet started, or after the music/song has ended. The beep sound is generally lost (unnoticed) when music is being played, except in some simple instrumental music (say only flute) being played in a calm environment, like early morning. The beep sound seems to go away after a while after the music/song completed. If one is very critical about noise, they need to be aware of this.Update: It's over 1.5 years now since I started using this amp, and there have been absolutely no issues during this period (other than those I had noted earlier above, some of which seems to have even been fixed in the latest versions). I'm now using it to drive Polk S20. And the seller is as promptly responsive as ever.

Does what it promises well. I had one set of panasonic music system speakers and another set of Dayton book shelf speakers lying unused as their respective players/amplifiers were dead. I hooked them to this amp and they work fine. I am mainly using the arrangement to play the built in FM radio in the mornings and also to stream a few songs on bluetooth from my phone. I am happy with the result.Pros1. Simple straightforward operation, connect your speakers - red wire to the red speaker jack and black to black, power on and you are good to go. Simple bass, treble, balance knobs together with a big volume dial. bluetooth connection is easy2. Output volume is very high, I dont have to turn up the volume even 1/4th to fill my 300 sq ft room with FM3. Output is distortion free, depends on speaker quality as well4. Looks nice5. Offers karaoke, usb connection and aux connection options as well - I havent tried thoseCons1. Price may be a little high as cheaper alternatives are available. International budget brands like Pyle are also in this price range.2. There is no way to store FM stations in memory. They have to be tuned every time.3. Quality of the buttons and display is not good. Cost cutting or poor design may be the reason.4. Bluetooth range is very limited - 100 feet max. dont expect to stream from phone kept in another roomOverall:Its a nice basic amplifier to power upto 4 book shelf speakers - 4.5 to 6 inch size speakers for home use. Don't connect any bigger speakers like those used by professionals - DJs etc. Also this is not for home theater type arrangement - 2.1 or 5.1 systems.Other things like radio, bluetooth remote are add ons. Dont expect design and finish quality like branded amplifiers. It gets the job done. SimpleBuy it for the sound quality.

The media could not be loaded. Problem started within a year. Faced multiple problems. Seller wants it to be shipped to Delhi. It has some components which are good quality, but the knobs and selectors go bad often and need service or replacement. Go for it if you are okay dealing with regular maintenance using local technicians. Otherwise, sound quality is good and the functions work well.