Don,
I have owned many Ruby's H, 3H, 3. These cartridges are a bit of a pain. They really like about a 1000 ohm load. But will work well at 500. If you drop down to 100, forgetaboutit. Now, I have also owned my share of Step-ups and with out a doubt, Bent or any using the S&B trannies are the best. The problem you will have is finding one with a ratio of 1;10 which is 20db of gain. This will give you 470 or so ohms to start with. If you can find a 1;5 with about 15 db of gain your up well over 1000 and the sky's the limit. The more common 1;20 ratio w/ 26db or gain, you do not want. This will start you at 117 ohms way to low for a benz. I may be a little off on my numbers but there close. Now that being said, you can always re-wire them for what ever ratio you want. The Stevens and billington tx-102 copper trannies are out of this world and the silver are god speaking to you. The old mitch cotter step ups are also wonderful and they are getting better and better with age. I used the high version with a benz ruby 3 with great results.
Anyways, I'm sure there will be other recomendations just remember you need at least 500 ohms and preferably more to open the Benz up. Like the EAR MC-4 is not for you. Its good but not for you. John chapman has a new step up using a custom magnequest tranny. If he has put his step- ups back into production, I know their good. He will also get you where you need to be. One of the best guys in this business hands down.
I have owned many Ruby's H, 3H, 3. These cartridges are a bit of a pain. They really like about a 1000 ohm load. But will work well at 500. If you drop down to 100, forgetaboutit. Now, I have also owned my share of Step-ups and with out a doubt, Bent or any using the S&B trannies are the best. The problem you will have is finding one with a ratio of 1;10 which is 20db of gain. This will give you 470 or so ohms to start with. If you can find a 1;5 with about 15 db of gain your up well over 1000 and the sky's the limit. The more common 1;20 ratio w/ 26db or gain, you do not want. This will start you at 117 ohms way to low for a benz. I may be a little off on my numbers but there close. Now that being said, you can always re-wire them for what ever ratio you want. The Stevens and billington tx-102 copper trannies are out of this world and the silver are god speaking to you. The old mitch cotter step ups are also wonderful and they are getting better and better with age. I used the high version with a benz ruby 3 with great results.
Anyways, I'm sure there will be other recomendations just remember you need at least 500 ohms and preferably more to open the Benz up. Like the EAR MC-4 is not for you. Its good but not for you. John chapman has a new step up using a custom magnequest tranny. If he has put his step- ups back into production, I know their good. He will also get you where you need to be. One of the best guys in this business hands down.