Für den Betrieb zweier Fosi Audio V3 Monoblöcke und einem von Hifi Zeile revidierten Harman/Kardon PM655 Vollverstärker benötigte ich einen Umschalter, um beide Verstärker "Infrastrukturen" an meinen Canton Ergo 91DC Lautsprechern spielen zu lassen, ohne dabei ständig die Kabel umstecken zu müssen.Das funktioniert verdammt einfach und perfekt! Die laststabilen Relais sind super, die Verarbeitung des Gerätes ist vorbildlich.Egal ob ich den Harman/Kardon an den Lautsprechern laufen lassen möchte, oder die Fosi Endstufen...ein Klick auf der Fernbedienung oder am Gerät selber und ich höre den jeweils anderen Zuspieler.Die Beleuchtung der VU Meter lässt sich in der Helligkeit anpassen oder sogar ganz abschalten, was ich auch sehr angenehm finde.Auch die Leuchtfarbe geht in Ordung und sieht sehr schön Vintagemäßig aus, ohne prollig zu wirken.Wobei ein dezentes Blau ala McIntosh auch sehr gefällig wäre.Leider!!!!! LEIDER !!!! LEIDER!!!!!! sind die VU-Meter keine echten VU-Meter, sondern sie zeigen einem die Stromstärke an, bzw. tanzen danach. Das führt dazu, dass sich bei steigendem Lautstärkepegel auch die Anzeige exponentiell verändert und man über den mittigen Drehknopf nachregeln muss, damit die Nadeln nicht in den Anschlag laufen.Die Anzeige von Watt und Dezibel ist damit auch eher kosmetischer Natur und völlig ohne Aussagekraft.Es sind einfach nur Zappelanzeigen, mehr nicht! Immerhin sehen sie gut aus und sind schön groß :)Dabei wäre es ein leichtes, dieses Gerät mit richtigen, echten VU-Metern auszustatten. Die Bauteile dafür kosten vielleicht 20EUR, in der Massenproduktion eher deutlich weniger.Ich werde mein LC30 entsprechend nachrüsten.Dazu muss man die Singaleingänge der vorhandenen VU-Meter nur vom Gerät abkoppeln und an einen VU-Meter Treiber anschließen, der dann seinerseits über RCA-Buchsen (Chinch) mit dem NF Signal vom Vorverstärker angesteuert wird.Die Stromversorgung müsste dann auf 12V umgestellt werden. 12V für die VU-Meter + StepDown Regler für den 5V Zweig des Gerätes.Alle nötigen Bauelemente gibt es fertig zu kaufen.Man braucht also gar nicht so viel am Gerät zu verändern und hat einen schönen Bastel-Nachmittag.Vielleicht wäre das eine Idee für eine kommende Version des Gerätes @Fosi Audio ;)

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Très belle qualité, c’est exactement ce que je cherchais.

Leider eine große Enttäuschung. Die Meter sind untereinander überhaupt nicht kalibriert, wie hier auf dem Bild zu sehen, wenn kein Ton anliegt und die Empfindlichkeitseinstellung entsprechend hoch gedreht ist.

This is not particularly cheap, but is easy to install and works well. It looks smart when in use. Perhaps the only downside is that I chose the dark coloured meter option. The unit has ver fine needles on the meters and they can be diifficult to see, but this is a mall issue. The light coloured meters might be easier to see. However, it's a worthwhile addition to a hi-fir separates system.

I’ve been an audiophile and techie most my life and love testing and comparing equipment especially since my first job as a teen where I had access to a room full of audio equipment with switchers to let customers hear the differences. But since those days, I’ve mostly had to rely on memory when trying to compare my own equipment. I have also always been a fan of the vintage and high end feel of analog meters. I never thought to buy a separate switcher or meter because it seemed impractical but here comes Fosi to solve those two things in one, high-quality, efficient and affordable product! I first learned about Fosi a few years ago when I was looking for a solution to put some extra speakers I had to use in my bedroom with emphasis on getting the best sound I could and also modern flexibility to use with my TV and streaming from other devices. After looking at a lot of options, including high end streaming amps and smart speakers that all didn’t seem good enough for the price they were asking for, I came across the Fosi T-20 which seemed too good to be true but I took the risk and haven’t been happier since. I’m getting better sound than most the other options I looked at for a fraction of the price and I even have a cool hybrid tube amp that fulfills the desire I’ve also always had for tube equipment. When hooking up this amp for the fist time, I tested it with all the extra speakers I had to see which ones matched for the best sound but being impatient with having to switch wiring every time, I didn’t do more than one quick listen with each one to decide and left it at that. Since then, I’ve felt I could improve my sound systems everywhere with Fosi equipment so I’ve been checking them out and mainly focusing on their amplifiers until I heard about their new DAC that just came out and then read the features of the LC30 when I was browsing their products. I could use it to give my speakers a true A-B test and add a cool meter to my T-20 at the same time!First thing I noticed when I got the LC30 was the quality, protective packaging to make sure the item inside was unharmed from shipping. The item itself is very cleanly designed and feels solid. Setup and operation is simple and straightforward and it’s nice they used all the buttons on the kind of generic remote to give you different ways to change the settings. I don’t have a tool to test how accurate the meters are but they seem to work fine and let’s face it, it’s just fun to watch the lit up meters dance while your system is playing. For those who have the tools or desire, it’s very easy to dial in the sensitivity of the meters although I don’t think you can set it for two different amps at the same time since there is only one analog dial but that hasn’t come into play for me yet as I’m only using it for one amp at the moment. Switching speakers is seamless with no pop, click or anything else jarring. It just switches flawlessly between my two setups and I can finally give them a true comparison which has already been a very revealing experience for me. I did notice that overall output is decreased slightly with the LC30 between the amp and speakers but that was to be expected and I never listen at full volume anyways so there is still plenty of headroom to work with. Overall, the LC30 is a great addition and tool for me to finally have again as I almost forgot how invaluable it is to be able to switch equipment on the fly. Right now, I have my two top contending speakers set up so I can just switch whenever I have a feel for hearing their different signatures or when one is better suited for the content I’m listening to and it’s another benefit I never gave much thought to having in my audio systems. Highly recommend and I look forward to adding more Fosi products to my systems!

the indicators don't move with love volume listening despite the knop set to max. besides that, It's perfect. I will pro return this to a more sensitive unit. the light is also too bright even at the lovest setting.

This is a cool gadget to have if you want a pair of VU meters for you amp. Goes well with a good Single Malt when listening to Music. In the off position, AMP B is connected to Speaker B. So You can use this unpowered too (ofcourse VU meters will not work and remote control will not work).The box is well constructed. It comes with a remote control to switch to one of two amps or switch to 1 of 2 speakers. It needs to be powered by any 5 volts power supply using a USB-C cable

Alles gut geklappt. Ein tolles Gerät, super zur Ergänzung der Hifi Anlage. Gutes Design und super Verarbeitet. Absolute Kaufempfehlung....

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The product arrived in the usual dark gray-blue Fosi packaging, generously secured with foam and in a sturdy cardboard box. The switcher itself is wrapped in antistatic bag. Furthermore, there is a basic user manual, remote control (you can control everything using it) and USB power cable.In the hot summer, its cool all-metal body was extra pleasant to touch, and thanks to four soft pads, it does not slide on the table. VU meters are placed behind glass panels. The surface is elegantly matte, but you can see every fingerprint on it. (I understand the remote now.) It has some weight to it and it gives you a solid feeling of a quality product. Button are nice and tactile, but their sound is overshadowed by the switching of the relays inside.The brightness can be set up in steps 100%, 75%, 50%, 25% and off. There is a VU sensitivity knob, but unless you are driving rhinos, you will probably keep it dialed way up to see the VU needles jump across the scale.Main function is switching between two sets of speakers and two amps, which is done be relays, which mean that even without power it passes sound through (2B config). Relays switch with a nice click, but it is instantaneous and doesn't effect the speakers at all.Tested it with Fosi V3 and tube Aiyima T9 Pro, together with Dali Spektor 2s. You can close your eyes and using the remote switch blindly between them and boy, was it worth it. (After matching volume levels of course.) The switcher at full brightness with both relays engaged took only around 2 watts.Closing thoughts?It's pretty, it's solidly built, does its job well, the remote is wonderful and you can keep it in your audio chain permanently even when powered down in 2B configuration.However, it is a bit pricier and I would welcome the VUs to be more sensitive and even the tiniest mark on the sensitivity knob.Other ideas? Most people would probably do without the switching part, so I guess there could be a market for 1on1 VU meter like this just as an eye candy. (Maybe on RCA if possible?) Peak signalling LEDs would also be a nice addition together with automatic start (like with the volume knob on V3)

sehr zufrieden

Ganz zufrieden bin ich nicht. Zwei Gründe sind dafür entscheidend. Zum einen ist der Dynamikbereich recht klein, d.h. mit ändernder Lautstärke ist auch ständig die Verstärkung anzupassen. Zum anderen schaltet sich das Gerät nicht selbständig ein, wenn die Spannungsversorgung über den USB-Anschluss des Verstärkers erfolgt. Schaltet man diesen ein, sollte die Lautsprecherzuschaltung automatisch erfolgen. Vorgewählte Einstellungen 1/2 - A/B sind gespeichert. Die Umsetzung wäre ganz simpel: der Taster ein/aus sollte rastend sein.Dass die Bezeichnung auf den Instrumenten keinen Bezug zu einer echten Messgröße hat, ist eher nebensächlich.