Recapping Genesis Base Amp

[malwic]

This is my first post in the forum. Really glad I found it. I have owned a pair of Genesis 350s for 25 years the last 14 or which they have been in storage. I am now setting up a new listening room in a second home and will be using these speakers in that setup. I have done an initial setup and everything is working properly. I did have to replace a couple of the base drivers as one had a faulty accelerometer and the other some friction in the movement. Fortunately, I had purchased spares just after putting these in storage so I had drivers ready to install. Now at Gary's suggestion I want to recap the Base Amp as a precaution. I have ordered 8 LLS1K103MELC‎ caps based on posts I read in this forum (thanks). For people who have been down this path is there anything I should be aware of before I attempt this replacement? Was it relatively straight forward to identify the parts to be replaced and to disconnect / reconnect them? Is there any value in me capturing some photos along the way for others to have as a reference later? Thanks in advance.

 

[garylkoh]

This is my first post in the forum. Really glad I found it. I have owned a pair of Genesis 350s for 25 years the last 14 or which they have been in storage. I am now setting up a new listening room in a second home and will be using these speakers in that setup. I have done an initial setup and everything is working properly. I did have to replace a couple of the base drivers as one had a faulty accelerometer and the other some friction in the movement. Fortunately, I had purchased spares just after putting these in storage so I had drivers ready to install. Now at Gary's suggestion I want to recap the Base Amp as a precaution. I have ordered 8 LLS1K103MELC‎ caps based on posts I read in this forum (thanks). For people who have been down this path is there anything I should be aware of before I attempt this replacement? Was it relatively straight forward to identify the parts to be replaced and to disconnect / reconnect them? Is there any value in me capturing some photos along the way for others to have as a reference later? Thanks in advance.

Hi there Malwic,

Yes - if you've had them in storage for 14 years, you definitely need to get your servo-bass amplifier re-capped. For sonics, there will be numerous signal coupling and decoupling caps that will also need to be replaced.

It is relatively straight-forward. Just replace like for like. However, lately I've been recommending that the amp be sent to a professional tech because you could damage it if you are not careful removing and soldering the new caps in. Also, you could damage the control circuitry and that cannot be repaired as parts are no longer available. Even if you could find some of the EPROMS, you can't get it programmed.