Suppo Audio -- New Chinese EL84 PP amp for CHEAP. - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 15th November 2009, 11:32 AM   #1
diyAudio Member
 
Join Date: Jun 2009
Location: Berlin
Default Suppo Audio -- New Chinese EL84 PP amp for CHEAP.

So I'm diving into the EL84 PP world with the following:

Suppo Model Ruihui Co.| rc model manufacturer| model aircraft manufacturer|rc airplane model manufacturer| model brushless motor manufacturer|outrunner Brushless Motor manufacturer|brushless motor speed controller factory| brushless motor speed contr

For the price of this little guy, I don't think I'm risking much. It's not here yet, but the pictures on the website look like it might be fertile ground for some DIY modding. I'd love to hear people's thoughts on this thing.

The website says there is a lot of flexibility in the tube complement so I'm trying some of the "odd balls." I just ordered a stack of NOS Russian tubes from ebay (cut and pasted below):
6P15P-EV = EL83 = SV83
6P14P-ER = 7189 = 6BQ5 = EL84M
6N23P-EV = 6N23P-EB = E88CC = 6DJ8
6N1P-EB = E88CC = 6DJ8 = 6922

I've got some nice NOS Westinghouse 6922's to try up front as well. In addition, I've also been recommended some NOS Sylvania blackplate EL84's but I got skunked on the last couple pairs I bid on. I'd love to try some of the 6BQ7 or 6CG7 that the website says will work in this amp.

So, it looks like the Russians and the Chinese are invading my home and I'm pretty excited to see how everything stacks up to my very nearly completed Tubelab Simple SE. I've been dragging on that little baby (actually with all the jumbo Edcor iron I think its going to come in at 50-60 lbs with the chassis) but I'm getting close!

I know several other people here have purchased this amp as well so hopefully we'll got some good ideas flowing. Hopefully we've found a little gem!

P.S. Most of those tubes I bought came in big lots so if anyone's looking to try some, shoot me a PM. If anyone else has some "odd" tubes they think would work in this amp, I'd love to trade so we can both try something new.
  Reply With Quote
Old 15th November 2009, 01:53 PM   #2
Brit01 is offline Brit01  United Kingdom
diyAudio Member
 
Join Date: Jul 2008


I'm just amazed at the price. Even if you use it for the parts its a great deal - nichi caps, transformers, sockets, plugs etc.

Go for it and let us know how it sounds.
I've got a couple of 6CG7 GE's NOS and think they sound great (and looks).



Wish I could get that shipped down here to Uruguay (restricted customs)
  Reply With Quote
Old 15th November 2009, 03:26 PM   #3
diyAudio Member
 
Join Date: Jun 2008
I imagine you get what you pay for.

Two things to consider: 1) An amp is only as good as the OTs. How do they look to you? 2) You will probably want/need to mod some things and that could be difficult. I find PCB circuits to be difficult to alter compared to PTP. You may feel differently.

On the happy side of the street, that's not alot of cash to gamble.

Sorry for the negative waves. It's early, coffee's still brewing.
  Reply With Quote
Old 15th November 2009, 03:30 PM   #4
diyAudio Member
 
Join Date: Sep 2005
Location: london
not only are the transformers a hindrance, the circuit design too. Changing for better partrs does not always help that much with a lot of these Chinese amps. I now stay well away from most of them. But you might still find a gem
  Reply With Quote
Old 15th November 2009, 03:34 PM   #5
john65b is offline john65b  United States
diyAudio Member
 
john65b's Avatar
 
Join Date: Jan 2005
Location: Chicago
I have one on its way too. Should be arriving in a few days...
__________________
All right, but apart from the sanitation, medicine, education, wine, public order, irrigation, roads, the fresh water system and public health, what have the Romans ever done for us? Life of Brian
  Reply With Quote
Old 15th November 2009, 10:53 PM   #6
diyAudio Member
 
Join Date: Jun 2009
Location: Berlin
Quote:
Originally Posted by Captn Dave View Post
I imagine you get what you pay for.

Two things to consider: 1) An amp is only as good as the OTs. How do they look to you? 2) You will probably want/need to mod some things and that could be difficult. I find PCB circuits to be difficult to alter compared to PTP. You may feel differently.

On the happy side of the street, that's not alot of cash to gamble.

Sorry for the negative waves. It's early, coffee's still brewing.
No problem on the negative waves... I understand mornings!

I have to say though, I think that one of the reasons many of us have gravitated to DIY in the first place is that often you don't get what you pay for. I mean, maybe its just me but when I see some SET amps going for 70 grand... am I really getting what I'm paying for?

Now, I'm not saying I expect this little guy to take over the world, but who knows? I'm imagining it won't be trash (not that you said it would be )

I've lived and/or worked in China for several years now and they are really get quite good at building a lot of stuff. It wasn't always that way, but "times... they are a changing."

Anyway, for very little money companies like Suppo Audio are providing ways for many more people to try out various flavors of tube audio. Seeing as how I haven't even heard the thing yet I don't want to sing its praises, but I have high hopes! With people loving products like the Miniwatt its not totally out of the question.
  Reply With Quote
Old 15th November 2009, 11:01 PM   #7
diyAudio Member
 
Join Date: Jun 2009
Location: Berlin
Oh yes, I just requested the schematic for this amp as well so hopefully that will get everyone's creative juices flowing in regards to mods/upgrades.
  Reply With Quote
Old 15th November 2009, 11:10 PM   #8
lowpoke is offline lowpoke  Australia
diyAudio Member
 
Join Date: Mar 2009
Location: Australia
Send a message via Skype™ to lowpoke
Damn, these look pretty sweet for the money, even shipped to Australia. Please post a review after you've had time to evaluate!
  Reply With Quote
Old 15th November 2009, 11:56 PM   #9
mrevie is offline mrevie  Australia
diyAudio Member
 
Join Date: Jan 2009
Got one on the way as well. Received my first one, looked good but was unfortunately damaged in shipping with only one channel operational. Will be posting a review when the second arrives.

Joe from Suppo was unbelievably helpful with the damaged amplifier and after realising parts would need to be sent for it to be fixed is sending an entirely new amplifier.

Steve.
  Reply With Quote
Old 16th November 2009, 07:50 AM   #10
diyAudio Member
 
Join Date: Jun 2009
Location: Berlin
Suppo Audio was kind enough to send the schematic for this amp and is most open to hearing what the DIY community has to say on ways to improve its design. I can't figure out a way to edit/attach it to my first post, but here it is. They also have some hi-res pictures on there website of the interior of this amp.
Attached Images
File Type: jpg Suppo Audio EL84 Schematic.jpg (372.3 KB, 5036 views)
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
cheap Chinese amp modules on ebay . Anyone know what they are ? jives11 Chip Amps 36 28th November 2008 04:35 PM
FS/T: Lite Audio Chinese audio preamp PCBs CaliforniaBob Swap Meet 0 26th July 2007 09:36 PM
Cheap and Chinese KT88 SE amp andrew_whitham Tubes / Valves 46 19th May 2007 11:05 AM
WTT Amp6 Int. Amp for cheap chinese tube Int. Amp mrdon Swap Meet 2 28th July 2006 11:03 AM
Cheap SE EL84 DocLorren Tubes / Valves 8 13th September 2005 03:18 PM


New To Site? Need Help?

All times are GMT. The time now is 02:20 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2