the input is short (potentiometer to zero), the output is connected to a load or speakersWhat are the testing conditions? At idle or playing a test tone? With or without speaker load?
I just tested. The right channel (that was fitted to the amp) was running at 9.7mv. The left channel (that was sent as a replacement) was running at 32.5mv. Both have now been adjusted to 8.3mv.the input is short (potentiometer to zero), the output is connected to a load or speakers
Try at 13 mV, at first I also listened at 8 mV, but it seems to me that 13 mV is much better, I now have 18 mV
Do you know where the midpoint voltage measurement points are located?Try at 13 mV, at first I also listened at 8 mV, but it seems to me that 13 mV is much better, I now have 18 mV
Hi,I have bought several of the FM clones over the course of the last 6 yrs. After the first purchase I was very impressed, especially for the cost.
I did a ton of research on the Chinese language sites as well as Baidu. For starters it should be understood that all the items on Aliexpress or Baidu are NOT all the same. There are several small shops making clones and some are somewhat "Boutique" if there is such a thing in China, and some just make poor quality look alikes.
What I did find is that the FM modules have proven difficult to replicate, however the module in the entry level Preamp FM155 was cracked with great success and that was my first purchase which unfortunately skewed my perception of the quality of China gear. Several Baidu sits recently claim they have cracked the latest 19200 HR modules as earlier ones had some noise when SE outs were used.
Most of the gear is single ended with the modules being Balanced to SE converters that have good rejection. The amps are not bridged and use a SE signal.
There is a "House" sound to FM gear that is spacious and gives outstanding vocal reproduction. I have heard better low bass and slam but the midrange is really special.
I did find a shop based in Beijing ( Oak Leaf )that makes very good units but they are expensive and bought a 222MK2 Phono stage from them.
The 711 schematic has a special high breakdown diode that gets subbed for a regular diode and that is the only thing I can find in good power amp clones other than matching of transistors and their branded power transistors. They also use 2 bridge rectifiers which gives lower forward resistance and is a ground loop breaker.
The PCB's have been cloned for identical layouts as well.
The FM amps are quasi complimentary like the Phase Linear and JLH amp so they do not use complimentary NPN / PNP outputs.
FWIW I sold my Levinson ML333 and kept the FM711 clone.
Please I’m interested to buy a module FM 19202 cracked , Can you tell me where I can buy it? Thanks
hi, I'm looking for a cracked FM 19202 module, can you help me? Thanks .I have bought several of the FM clones over the course of the last 6 yrs. After the first purchase I was very impressed, especially for the cost.
I did a ton of research on the Chinese language sites as well as Baidu. For starters it should be understood that all the items on Aliexpress or Baidu are NOT all the same. There are several small shops making clones and some are somewhat "Boutique" if there is such a thing in China, and some just make poor quality look alikes.
What I did find is that the FM modules have proven difficult to replicate, however the module in the entry level Preamp FM155 was cracked with great success and that was my first purchase which unfortunately skewed my perception of the quality of China gear. Several Baidu sits recently claim they have cracked the latest 19200 HR modules as earlier ones had some noise when SE outs were used.
Most of the gear is single ended with the modules being Balanced to SE converters that have good rejection. The amps are not bridged and use a SE signal.
There is a "House" sound to FM gear that is spacious and gives outstanding vocal reproduction. I have heard better low bass and slam but the midrange is really special.
I did find a shop based in Beijing ( Oak Leaf )that makes very good units but they are expensive and bought a 222MK2 Phono stage from them.
The 711 schematic has a special high breakdown diode that gets subbed for a regular diode and that is the only thing I can find in good power amp clones other than matching of transistors and their branded power transistors. They also use 2 bridge rectifiers which gives lower forward resistance and is a ground loop breaker.
The PCB's have been cloned for identical layouts as well.
The FM amps are quasi complimentary like the Phase Linear and JLH amp so they do not use complimentary NPN / PNP outputs.
FWIW I sold my Levinson ML333 and kept the FM711 clone.
Ago
They are available on Taobao. For most people its easiest to use an agent like Superbuy or Buytome.
https://www.superbuy.com/en/page/bu...om/item.htm?id=798590471728&nTag=Cart-product
https://www.superbuy.com/en/page/bu...om/item.htm?id=798590471728&nTag=Cart-product
Does anyone have the schematic of the FM Acoustics 19202 modules or can show me some photos of the inside? Thank you

Moduli FM Acoustics 19202, qualcuno ha lo schema?
English please. We keep telling you.
FM Acoustics 19202 modules, does anyone have the schematic?
sorry, this doesn't seem like the diagram of the FM 19202 module above, can you send it to me, or do you know where to find them cracked? Thank you
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