FX Audio 6j1 tube preamp - a $31 wonder

[Poultrygeist]

Here's the Volt+ powered by an Astron linear regulated psu. I plan to try the Astron with the FX Audio preamp.

 

[Poultrygeist]

A dual chip TPA3116 powered by the same Astron.

 

[Poultrygeist]

A TPA3116 powered by the Pyramid

 

[Poultrygeist]

Another Astron powering a TPA3116.

 

[Poultrygeist]

My first power supply upgrade was with the T-amp on the right. That silver psu is a switching mode not a linear regulated.

 

[Poultrygeist]

I still have a version of this T-amp preamp. It never sounded great with it's wall wart but when I strapped it to the Pyramid it was jaw dropping good.

 

[cipriano]

My FX tube01j should arrive today. I'm excited to hear it. So how do I run the 2 different volumes? Amp all the way up and only use volume on preamp, or is it the other way around?

 

[Poultrygeist]

My FX tube01j should arrive today. I'm excited to hear it. So how do I run the 2 different volumes? Amp all the way up and only use volume on preamp, or is it the other way around?

Yes, max the amp and use the FX to control the volume. Let us know how you like it.

 

[cipriano]

Will do! I bought a pair of NOS Ericcson 403b's to try with it.

 

[Poultrygeist]

Will do! I bought a pair of NOS Ericcson 403b's to try with it.

 

[likebike23]

That looks promising. Do you have any experience with this preamp?
https://www.amazon.com/Nobsound-NS-...und+preamp&dpPl=1&dpID=51hVD6f6pxL&ref=plSrch

I like to have tone controls and am curious if this preamp is similar. I have a NAD power amp that I want to hook up and have been looking for an inexpensive and good sounding pre. Any insight is appreciated.

 

[winters860]

Is there any appreciable gain, or is this strictly a buffer/attenuator?

 

[likebike23]

Is there any appreciable gain, or is this strictly a buffer/attenuator?

It says there is 1.5-2.0x voltage amplification. I'm not sure exactly what that means . If it is a buffer would it be a good pair for a power amp? Sorry if it's a silly question, I don't have much experience with separates.

 

[Poultrygeist]

That looks promising. Do you have any experience with this preamp?
https://www.amazon.com/Nobsound-NS-...und+preamp&dpPl=1&dpID=51hVD6f6pxL&ref=plSrch

I like to have tone controls and am curious if this preamp is similar. I have a NAD power amp that I want to hook up and have been looking for an inexpensive and good sounding pre. Any insight is appreciated.

I'd go with this one if you want tone controls. It's 12v DC ( not 6v ) and it would be easier to add a better power supply. These preamps have gain so they're more than a buffer.

https://www.amazon.com/FX-Audio-TUBE-03-Treble-Buffer-Preamplifier/dp/B07D9G153F

 

[likebike23]

I'd go with this one if you want tone controls. It's 12v DC ( not 6v ) and it would be easier to add a better power supply. These preamps have gain so they're more than a buffer.

https://www.amazon.com/FX-Audio-TUBE-03-Treble-Buffer-Preamplifier/dp/B07D9G153F

Thanks for the recommendation. I missed that one.

 

[HiFiJeff]

Is there any appreciable gain, or is this strictly a buffer/attenuator?

There is definitely some gain with this pre-amp.

 

[HiFiJeff]

I'd go with this one if you want tone controls. It's 12v DC ( not 6v ) and it would be easier to add a better power supply. These preamps have gain so they're more than a buffer.

https://www.amazon.com/FX-Audio-TUBE-03-Treble-Buffer-Preamplifier/dp/B07D9G153F

Does it sound as good as the one without tone controls?

 

[john111/LZ]

Thanks for the recommendation. I missed that one.

Thats the one i purchased....its simply excellent

 

[Poultrygeist]

Does it sound as good as the one without tone controls?

Probably system dependent

 

[Poultrygeist]

View attachment 1356300 View attachment 1356301
Thats the one i purchased....its simply excellent

Very handsome. Those tubes look taller than mine. Are they stock?