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V4 is the obvious as it’s for both the send and the return. Intermittent loop jack is another, but since you’ve ruled out those, I think there’s not much else you can do without getting the chassis out and start poking around. You could further narrow it down running the signal from send to...

What happens when you jump the loop with a cable?

I use whatever household detergent I have on hand and warm water. Just a tiny drop though, not cause too much foam. And a toothbrush. That gets the gunk out of the grooves. I only do this for ’new’ amps (newer than 1960 :)), which the previous owners have not cleaned. After that i might just...

Never thought of that, but you’re absolutely right. Deluxe Reverb should not be called Deluxe, there’s nothing luxurious about it. Ordinary Reverb at best.

Ah, ok. With this logic ’Single rectifier’ should be called just ’single’ or ’No rectifier’. I would say ’single’ because ’no rectifier’ implies that it runs on either battery or AC. This is propably why it was removed from the lineup, it just does not fit to the naming scheme. Sad really...

Rectifier just rectifies ac to dc. From functionaly point of view it does not matter whether one uses tube of diodes as rectifier, ac turns into dc. It is still rectifier which has specific purpose in electric circuit. So yes, single rectifier has only one rectifier which uses diodes. Dual has...

Def not a bad choise. That lower sensitivity is not a bad thing when se talk about mk3 amp which gets pretty loud pretty quick.

You’re fine with V30 unless you need to constantly go above 120dB. V30 also sounds fine in mark combo but I guess it depends on the sound you’re going for. If you want loud and fat clean then maybe it’s not ideal. I’ve had V30 on and off in mark3. It’s a solid speaker.

Leds are nice as you can choose the colour temp! There you really have differences (other than clear or opaque glass) between brands, very few are great most are ****. Poor ones show the different colours on the spot like blue ring and stuff. Awful. I agree about the plate dissipation, 50% is...

Can you imagine having a discussion about which brand of 60w incandescent lightbulb is best suited for kitchen? If you really want to tune the poweramp and have difference you can pick up in a blindtest, install bias trimmer. I modified my dual in such way that el34 setting biases the 6l6gc...

Chassis is the same that was used for Mk3. So atleast mk2-3-4 head shells fit just fine. I’ve changed those back and forth.

I have not been truely satisfied with the dual i have. I’m able to track with it however and after the usual post processing one does (LP, HP, 1k boost) is sounds like a recto. But in a band contex it just was too woofy, compressed, lacks any clarity and is lost in the mix. It also makes bass...

Has anyone measured bias with those sets that are advertized as having right bias range? The set i have is supposed to be for mesa, but i dont think 19% is correct bias range. Though that’s propably how ’mesa’ tubes bias in dual.. Mine are not from eurotubes but one of those well regarded...

JJ. And have it biased. I dont think any tube will bias properly in dual. Mine was running 19% of the max dissipation on stock setting. Now it is quite a bit less fizzy.

order as far as i can remember 1. Peavey Classic 20 2. Mesa Subway Rocket Reverb 3. Engl Screamer 4. Carlsbro Top50 5. Marshall 1987x 7. Fender Twin Reverb 8. Thd bivalve 9. Hiwatt Dr103 10. Mesa Mark 4 11. Mesa Mark 3 12. Marshall Superbass 13. Marshall jtm45 14. Marshall 1974 15. Marshall...

For me there's no best. Mk1 is lovely. Mark 2b/C+ have awesome clean sound as does early Mk3. 3CH Dual rectifier has tencency to sit in a mix very nicely, it is always present but not pokey plinky plonky i.e. you can saturate it a little to get some compression while still sounding clean. If I...

Thanks for this, I was looking for ev graph but this is clearer than what I found. That’s pretty much what I’m hearing as well, good amount of mids and quite a bit upper mid sizzle. I’m not so sure this is that neutral speaker. Eminence swamp thang has also that 1k midbump and sounds really good...

Easy! 1=single 2=roadster.

Greetings, Based on the serial I have 2005 dual recto. I have noticed weird precence pot behavior on orange channel. This only happens when modern mode is selected, vintage mode has no issues. Symptom is that after 3 o'clock the tone is not getting brighter, but the opposite happens. It gets...

Cool collection! My amps have remained the same for years. What I actually use changes every couple of years. Amps - 2021 Diezel VH-2 - 1990 Marshall JCM900 mkIII 2500 head (single channel) - 1987 Marshall JCM800 Silver Jubilee 2553 - 2007 Mesa Dual Rectifier - 1986 Mesa MarkIII+ - 1986 Mesa...