M
MistaGuitah
Well-known member
First, the JJ Jr is a badass amp overall - love it. $1499, a little overpriced in my opinion, but I also think that of the PT20 and DS mini. I was disappointed that the clean channel has much less volume than the dirty channel, and that it starts going into overdrive around 12:00 at max volume. The clean channel can't really go beyond band practice. I didn't expect a great deal of clean headroom, but the difference in volume between the clean and dirty channel reminds me of a Hughes and Kettner Tubemeister 18 I used to have.
It has a decent low end available for an EL84 amp, and the low end holds up extremely well, but not so much that beautiful, massive low end the JJ-100 has. It's a little saggier on pick attack than the JJ-100, and tends to feel more immediate as the gain increases, but that's a very subtle difference from the JJ-100 and not like some other amps that have chewier dynamics. The BE channel seems like it has slightly less gain than the JJ-100 BE channel, and seems to saturate a little more on the JBE channel. I think I like the JJ-100 BE channel more than the JJ Jr BE channel. Where the JJ-100 BE channel was slightly more appealing to me than the BE-100 BE channel, the JJ Jr BE channel is slightly less appealing than the PT20 in sort of an opposite respect. I'm really nitpicking here though because it's nuance.
One of the most useful things about the JJ-100 is how well the EQ works. The JJ Jr EQ works very well but maybe a little less effective than papa bear. For example, you can take the mids down to 0 on the JJ-100 without really having to adjust the presence or treble. The EQ of the JJ Jr seems to respond to changes in some of the knobs. For example, if I cut the mids (for example, not that it would be practical to have mids on zero) out on the JJ Jr, something takes away from both the bass and treble, so they both need to be turned up to compensate; and it becomes a little darker so the presence has to be nudged a little too. If you do the reverse and want to turn the mids up to 10 then it seems to need a little nudge of the treble to get the mids to stand out similar to the JJ-100. I don't know if I'm explaining that right but it seems like the treble control affects the other controls somehow.
This is not a replacement for a JJ-100 if you play live gigs that require a fair amount of cleanish headroom in my opinion. However, it makes an excellent replacement if you use it for a home studio. I have not yet tried the speaker emulation yet but the cab I'm using is a DS Mini cab which I think has the same Celestion Creamback speaker, so I can tell you it sounds beefy enough through a 1x12.
Overall, I like this amp a lot. It really needs a 4x12 with a band I think, but that kind of diminishes the usefulness of it as a portable mini head when you have to lug around a 4x12. I am pretty disappointed with the lack of volume on the clean channel. However, my needs at the present time and probably for the next year do not require that much so it's adequate. I know I've offered a little criticism of this amp, but part of that probably stems from separating from my JJ-100 which was just too much amp. Honestly, the JJ-100 is just too much and the JJ Jr. is too little. For $1500, the JJ Jr. could have been a 25w. In that regard it could leave you left wanting a little bit. Having said that, it's a very fine little amp that's packed with useful features. The tone is very good and it has that great high gain definition and openness reminiscent of the JJ-100.
It has a decent low end available for an EL84 amp, and the low end holds up extremely well, but not so much that beautiful, massive low end the JJ-100 has. It's a little saggier on pick attack than the JJ-100, and tends to feel more immediate as the gain increases, but that's a very subtle difference from the JJ-100 and not like some other amps that have chewier dynamics. The BE channel seems like it has slightly less gain than the JJ-100 BE channel, and seems to saturate a little more on the JBE channel. I think I like the JJ-100 BE channel more than the JJ Jr BE channel. Where the JJ-100 BE channel was slightly more appealing to me than the BE-100 BE channel, the JJ Jr BE channel is slightly less appealing than the PT20 in sort of an opposite respect. I'm really nitpicking here though because it's nuance.
One of the most useful things about the JJ-100 is how well the EQ works. The JJ Jr EQ works very well but maybe a little less effective than papa bear. For example, you can take the mids down to 0 on the JJ-100 without really having to adjust the presence or treble. The EQ of the JJ Jr seems to respond to changes in some of the knobs. For example, if I cut the mids (for example, not that it would be practical to have mids on zero) out on the JJ Jr, something takes away from both the bass and treble, so they both need to be turned up to compensate; and it becomes a little darker so the presence has to be nudged a little too. If you do the reverse and want to turn the mids up to 10 then it seems to need a little nudge of the treble to get the mids to stand out similar to the JJ-100. I don't know if I'm explaining that right but it seems like the treble control affects the other controls somehow.
This is not a replacement for a JJ-100 if you play live gigs that require a fair amount of cleanish headroom in my opinion. However, it makes an excellent replacement if you use it for a home studio. I have not yet tried the speaker emulation yet but the cab I'm using is a DS Mini cab which I think has the same Celestion Creamback speaker, so I can tell you it sounds beefy enough through a 1x12.
Overall, I like this amp a lot. It really needs a 4x12 with a band I think, but that kind of diminishes the usefulness of it as a portable mini head when you have to lug around a 4x12. I am pretty disappointed with the lack of volume on the clean channel. However, my needs at the present time and probably for the next year do not require that much so it's adequate. I know I've offered a little criticism of this amp, but part of that probably stems from separating from my JJ-100 which was just too much amp. Honestly, the JJ-100 is just too much and the JJ Jr. is too little. For $1500, the JJ Jr. could have been a 25w. In that regard it could leave you left wanting a little bit. Having said that, it's a very fine little amp that's packed with useful features. The tone is very good and it has that great high gain definition and openness reminiscent of the JJ-100.