It's probably loud enough for a small gig but will be wanting for anything halfway serious. But I found the bass and trebles both boosted when flat. I found the Rumble 100 to have a special sound that some might like. It's an ok amp, but at $300 very limited when for approximately $20-30 more you can get a BG250 or a GK Mb110. In last place of 3 was the Fender Rumble 100.
#Gallien krueger backline 100 guitar amp plus#
On the plus side, the built-in tuner is really nice to have. Additionally I am told (though haven't experienced it) that XLR out bypasses any toneprint effect you might have.
#Gallien krueger backline 100 guitar amp download#
You cannot download EQ's and Toneprint editor is not available for the amp. The toneprint thing on the amp only allows you to download SPECIAL EFFECTS.
I actually felt a bit betrayed in this regard. Frankly, the toneprint on the amp is (IMO) over-hyped and has limited usefulness. One of my big complaints is how TCE really hypes the toneprint thing for the amp (as well as it's pedals). The separate gains and master volume are helpful in finding a variety of tones as turning up the gain really helps bring out crispness. When I went to change basses it was difficult to find the sound I wanted for each. Somehow it shifts frequencies of the adjustments, supposedly to make it easier to get a better sound with EQing, but I found it to be the opposite. While that undertone gives it an aura of depth it also eclipses some of the clarity of the notes. The natural sound of this amp has a deep undertone. 18.2" x 24.4" x 15.0" 35 pounds It too is a very good amp. Runner up and almost a keeper was the TC Electronic BG250-112. If your budget is only around $300 you should seriously consider this amp. LOUD! I'd probably have gone for this one but I got a deal on the 112 narrowed the difference to $70 for the 112 vs the 110. Again, only 30 pounds (13.7 Kg for those over yonder).Īs an alternative, I strongly considered the GK MB 110, the 100 watt/10" version. It's even smaller than the Rumble 100 and puts out significantly more sound. That is the key ingredient to it being the winner. No master, but 4 eq knobs, a single gain/volume control, a contour switch and -10db switch. Can't play it at home without the -10db switch and still the volume is at 2. This is the third of three amps that I purchased, returning the other two.
No signs of anything burnt or scorched at all (though again, I haven't flipped the board - will tomorrow).Īny thoughts? I'm more used to things with tubes in them.Finally settled on a new bass amp. Previous owner told me that a "resistor" had blasted apart, and indeed there was a small chunk of something rattling around in the amp, but that something looked like the plastic/rubber/whatever coating from an NTC thermistor, though the two in this amp aren't "blasted apart", and the amp wouldn't function at all without them. Haven't pulled the board out yet so I haven't checked for cold solder joints. Didn't bother with preamp, since it's completely disconnected for my testing. Here's the schematic for the power amp section: gallien-krueger-backline-600.pdf. Amp delivers plenty of power even while crackling, and fan turns on and off properly. Once the amp warms up enough to stop crackling (somewhere around 40☌ or ~100°f), noise at the output is around 1mv. I can see the noise when I probe Q14/18 base and emitter (perhaps it's coming from Q7A/Q7B, hmm.). Noise at the output is ~100mvP-P, and crackling can be up to 5vP-P, maybe higher (hard to catch on my analog scope). Power supply seems fine otherwise +-60v are nearly exact, +-35v and +-15v are within 10%, and no detectable noise on any of them. Scoping the power supply rails, there's a bit of ripple on the +-60v but nothing that matches the crackling at the output. Hi all, I've got a Backline 600 that's giving me some nasty crackling and noise, which sometimes goes away after the amp warms up, even without the preamp board connected at all - meaning it's the power amp or power supply.
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