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Static Stabilizers vs Servo Stabilizers

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mannukiddo

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Jul 15, 2019
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Jabalpur
If its a double conversion online ups ( NOT BACK or Line interactive UPS ! ) then no further surge protect required.
Even better if you have a servo stabilizer followed by a online double conversion UPS !
Thanks yes its a double conversion online UPS. I couldn't get the regular recommended Servo Stabilizer guys to deliver to my city. So I guess I will just stick to getting a plain vanilla good quality distribution box.
 

Cherian

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May 25, 2011
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213
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Location
Goa
I live in an area where the power goes off for a few minutes a couple of times on most days. I'm looking for protection for my 60 x 2 Watts Marantz PM7005 stereo amp with power consumption of 170 Watts according to the manual.

The dealer who sold me the amp had suggested an 800 Watts Pure Sine Wave UPS. The problem is that all the solutions I could find online over 600 Watts required an external battery that would add to the cost.

I only need the power to stay on till I can switch off the amp correctly and avoid an abrupt cut off.

Would a 600 W Sine Wave UPS from APC solve my problem? Could you suggest a model number?

Would this be sufficient?

Emerson Liebert iTON CX 600 VA​

https://www.amazon.in/gp/product/B00PBAA4UU/ref=ask_ql_qh_dp_hza
 

selvaa_pr

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Sep 26, 2020
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Bought a double conversion online UPS and received it today. Connected to mains and flipped the switch. At the very moment i got shocked that, that UPS is sounding like a car waiting in idle running. Pretty disappointed. When i spoke to that dealer he said fan will be running only when UPS running in full load. But, that stupid UPS fan running all the time. One of the Emerson brand spec mentioned that max noise level 45db. But, this stupid local make from NanTech, Chennai is giving more than 50db. My wiring doesn't support to keep outside the room. Really don't know what to do. Spent almost 15k for 1KVA UPS.
 

IndianEars

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May 18, 2008
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795
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Mumbai
Contact the dealer.

Maybe the fan therostat connector has got loose during shipment ?

Maybe u can call the manufacturer also ?
 

r_senthil

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Nov 8, 2015
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Location
chennai
In our area there is almost 4 to 5 hours of power cut and the voltage fluctuations are also routine throughout the year .So to tackle the situation i have installed a 12kva servo stabilizer on the mains and from there to a 1000 va Luminous sine wave inverter/ups and both are outside my audio room/ bedroom.The voltage output from the servo varies from 220 volt to 225 volt depending on the input variations.
Hi Imtiyaz, Other FM's
Can Luminous 900 va (Luminous Zelio 1100 Inverter Model) take load of 47" LED TV + Av receiver and Sub and this inverter can be connected to Servo stabilizer output (Mains---> Servo--> Luminous Zelio 900va inverter ---> 47" LED TV + HT AV receiver + sub woofer)?
Since 900va inverter is approx 750w, can it take load for LED TV, AV receiver and sub incase of power failure for 2 or 3 min for safe shutdown.
Also what would be servo stabilizer capacity for 900va inverter with 150ah battery?
Also is it recommended to connect AV receiver to Home inverter as some of the earlier thread says it will void warranty. Luminous zelio 1100 model specs mention as sinewave. Really confused. Please help
 
Last edited:

OM_2K19

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Sep 2, 2019
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Bangalore
Hi Imtiyaz, Other FM's
Can Luminous 900 va (Luminous Zelio 1100 Inverter Model) take load of 47" LED TV + Av receiver and Sub and this inverter can be connected to Servo stabilizer output (Mains---> Servo--> Luminous Zelio 900va inverter ---> 47" LED TV + HT AV receiver + sub woofer)?
Since 900va inverter is approx 750w, can it take load for LED TV, AV receiver and sub incase of power failure for 2 or 3 min for safe shutdown.
Also what would be servo stabilizer capacity for 900va inverter with 150ah battery?
Also is it recommended to connect AV receiver to Home inverter as some of the earlier thread says it will void warranty. Luminous zelio 1100 model specs mention as sinewave. Really confused. Please help
Before you proceed with this set-up, make sure that the switch over time of your Inverter is less than 5ms. Modern AV equipment specially Denon AVR is very susceptible to Switch-Over time.
 

selvaa_pr

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Sep 26, 2020
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Location
Chennai
Just note that double conversion means that it is very noisy so make sure it's outside the listening area.
I too bought a online UPS and measured the noise @1m in a quite place with 42dB ambient noise. The moment I started the UPS, noise level gone to 53 - 55dB. Really annoying..

Friends, can someone please help me here. Is this 55dB noise is expected from a 1 KVA online UPS. I am into debate with them now. Planning to return the same.
 

sud98

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Nov 13, 2008
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bangalore,india
Check the specs. The APC one is noisy and is meant to be kept outside the listening room and if possible, outside your house.
 

selvaa_pr

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Sep 26, 2020
Messages
92
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Location
Chennai
Friends, can someone please help me here. Is this 55dB noise is expected from a 1 KVA online UPS. I am into debate with them now. Planning to return the same.
After so much of argument with the vendor, I went with replacing the stock fan with Noctua Redux 80mm fan at my own cost which has near compatible spec for air displacement. Now, fan noise reduced to a great extent. Now, I get max of 41db from 1m. Its just a slight hus which is barely noticeable during day time. Only in late night i could hear the him. UPS temperature also stays at 34 - 35 deg Celsius. Now, UPS sits next to AVR.
 

HIEND-Raja

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Joined
Feb 11, 2015
Messages
35
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18
Location
Cuddalore
For the audio system Servo stabilizer is best option the output voltage is very constant. I use servo stabilizer 15 kva with inbuilt OBO surge protector and 5kva "Topaz" (US) Isolation transformer Hospital grade for audio system.
 

Vivek Batra

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Mar 13, 2019
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Chandigarh
For the audio system Servo stabilizer is best option the output voltage is very constant. I use servo stabilizer 15 kva with inbuilt OBO surge protector and 5kva "Topaz" (US) Isolation transformer Hospital grade for audio system.
What brand and where to buy it?
 

HIEND-Raja

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Feb 11, 2015
Messages
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Location
Cuddalore
What brand and where to buy it?
Vertex I bought in Chennai. but I am not happy with this product. Earlier I was recommended my audio friends, now not recommend! This stabilizer have "Variable transformer"and "Buck Booster" Transformer, variable transformer used copper wire Buck Booster used aluminum wire not good! Other problem is in case of neutral line failed we will have unbalance power output. My worst experience broken rotary shaft of one servo variable transformer. Luckily I have high voltage protection in my isolation transformer so it was prevented audio equipment failures. Out there other servo stabilizer manufacturer have with neutral protection.
 

arunkvivek

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Dec 2, 2015
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Bangalore
Hi Imtiyaz, Other FM's
Can Luminous 900 va (Luminous Zelio 1100 Inverter Model) take load of 47" LED TV + Av receiver and Sub and this inverter can be connected to Servo stabilizer output (Mains---> Servo--> Luminous Zelio 900va inverter ---> 47" LED TV + HT AV receiver + sub woofer)?
Since 900va inverter is approx 750w, can it take load for LED TV, AV receiver and sub incase of power failure for 2 or 3 min for safe shutdown.
Also what would be servo stabilizer capacity for 900va inverter with 150ah battery?
Also is it recommended to connect AV receiver to Home inverter as some of the earlier thread says it will void warranty. Luminous zelio 1100 model specs mention as sinewave. Really confused. Please help
you can compute yourself. Go to this link, scroll down for the calculator. It is fairly easy.
 
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