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Post by covenant on Jan 26, 2019 14:14:40 GMT
The Croft Series 7 power amp I use is excellent but I am thinking of changing the valve to a NOS one. I cant really fault the supplied one but would hope to improve soundstage. Just wondered if there was any point with it being a power amp and if there were any that especially suits the Croft?
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Post by MartinT on Jan 26, 2019 14:29:37 GMT
I changed my EL34s many years ago in my Croft Series 4 for some Groove Tubes and they definitely sounded tighter. It's worth a try with power amps as well as other kit. What valves does the 7 run?
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Post by ChrisB on Jan 26, 2019 14:33:36 GMT
It's an ECC83 - plenty of choices there. Fairly cheap to try a few different flavours unless you want to go crazy. I'd try a few cheapies to get a feel for the magnitude of gains to be had before you go mad! You never know you might find something you like.
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Post by Firebottle on Jan 26, 2019 14:40:13 GMT
It's the driver valve in the Croft 7 and can make quite a difference.
Talk to Jimbo on AoS he has the same.
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Post by covenant on Jan 26, 2019 14:54:06 GMT
It's the driver valve in the Croft 7 and can make quite a difference. Talk to Jimbo on AoS he has the same. Thanks for the tip-will do. Maybe start saving for your monoblock amps..... |
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Post by julesd68 on Jan 26, 2019 14:55:22 GMT
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Post by covenant on Jan 26, 2019 15:38:58 GMT
Thanks, This one for example?:https://www.tubeampdoctor.com/en/shop_TAD_Premium_Tubes_TAD_Pre_Amp_Tubes_SELECTED/ECC83_WA_TAD_Premium_Selected_2191 |
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Post by julesd68 on Jan 26, 2019 16:26:47 GMT
Yes something like that worth a try at the price.
I haven't used the ECC83 myself but super impressed by their very neutral 6SN7; they also do a good value GZ34.
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Post by Chris on Jan 26, 2019 18:01:50 GMT
I use the TAD KT88s ang they're excellent.
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Post by covenant on Feb 3, 2019 12:07:55 GMT
Quick update:
I bought a TAD ECC83 Cryo teated tube from Watford valves and have initially been disappoined with it. It sounds a bit clinical although the soundstage is very good. Then I had a look at the tube I took out-it was a Harma ECC83 Retro. I remember returning the amp to Glenn a while back who did some upgrading which must have included fitting this particular tube.
I am going to keep the TAD tube in for a couple of weeks to see if it improves but the Harma has a sweeter top end and just sounds more musical so will probably go back in.
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