[lpaudio2]

I currently live in a place where I have no control over the power - I cant run a dedicated line, or install a dedicated surge, what all is the best solution in terms of surge protection for an amp that draws as much as the 7b st does? I tried it in my monster power stuff, and it sounded restricted, and compressed.

Curious what others have found to work well with the 7b st in terms of power.

[James Tanner]

I currently live in a place where I have no control over the power - I cant run a dedicated line, or install a dedicated surge, what all is the best solution in terms of surge protection for an amp that draws as much as the 7b st does? I tried it in my monster power stuff, and it sounded restricted, and compressed.

Curious what others have found to work well with the 7b st in terms of power.

Hi lpaudio2.

I have also found that a lot of power line conditioners restrict the dynamics. When we were developing the Torus Power Isolation units we found we had to use 'transformers' at least 1.5 times larger than the specific rating you would normally assume would be adequate.

So for instance on The Torus 120v/15 amp unit we use a transformer TWICE the size required for a 15 amp service (this is true of all the Torus units). This also allows us to have a very low impedance on the output of the Torus which greatly improves the transient current draw for the amplifier.

As for surge protection make sure you go with a 'SERIES' surge protection unit (like in the Torus) and not MOV type surge protection which are sacrificial in nature and eventually become useless.

james

[lpaudio2]

Yikes. Way out of my budget! Is there anything more reasonable.

[James Tanner]

Yikes. Way out of my budget! Is there anything more reasonable.

You can buy series surge protection much cheaper but it will not offer power line conditioning.
http://www.surgex.com/

james

[lpaudio2]

do you think the 1810 (15a) is enough or do I need the sa20?

[James Tanner]

do you think the 1810 (15a) is enough or do I need the sa20?

HI,

The 15 amp would handle 2-7B's fine but for the price difference most customers buy the 20 amp unit and use a 15 amp wall plug power cord with it. That way if you ever put in a 20 amp wall plug service in the future all you need to do is change the power cord to a 20 amp version.

james

[James Tanner]

do you think the 1810 (15a) is enough or do I need the sa20?

HI,

The 15 amp would handle 2-7B's fine but for the price difference most customers buy the 20 amp unit and use a 15 amp wall plug power cord with it. That way if you ever put in a 20 amp wall plug service in the future all you need to do is change the power cord to a 20 amp version.

james

HI,

Sorry - I thought you were asking about the Torus and realized you meant the Surgex.  Get the 20 amp.

james

[ian.ameline]

I use a Furman PM-PRO 2 power conditioner -- works well, looks nice. Has series protection and blocks pretty much all RMI/EFI, and has overvoltage protection that shuts everything down at 135V

http://www.furmansound.com/product.php?div=01&id=PM-PRO_II