6505MH HAS LANDED! My impression, review, and experiments...

  • Thread starter Thread starter napalmdeath
  • Start date Start date
napalmdeath

napalmdeath

Well-known member
First off, take this with a grain of salt.. It should be noted, (obviously), that cab/speakers/signal chain played a huge role in most of the reviews I've read, (good and bad), and personally, I'm astonished at the ignorance of some, when this isn't considered as a major factor. Case in point; a lot of "thin", and "not big sounding like the 120 watt", well, DUH.. EL84's and transformers less than half the size, you do the math... I read that shit-storm 6505MH thread, and it just got silly.

My 2-3 hour test-run was through my Randall 4x12,, loaded with V30's and G12T-75's, my ESP EC-1000T/CTM with EMG 81'60's, a couple boost pedals were demo'd, and I ran my MXR 10-Band, Boss DD-3, MXR Black Label Chorus, and NS-2 in the loop.

The cleans are ok, but I didn't care about this from the start. Crunch engaged, gain up a bit, it does just that, a nice crunch. Boosted, it gets even nicer, but I found it a bit tubby. I could work with it, but, I decided to dive right to Lead mode, and the magic began! WHAT A BEAST! Thin? Fizzy? Buzzy? Those are the last words I'd use. Most notably, the resonance and low/bass controls work very well. I had more punch out of the gate, (without the EQ in the loop engaged), than my JVM. No shit.. And adding the 10-Band, it just got ridiculously huge, tight, and extremely aggressive. Extremely. Absolutely viscous sounding, in a very good way.

I boosted the Lead channel, (as I would anyway), to achieve maximum results. I tried my MXR GT-OD, TC Spark Boost, Boss SD-1, and MXR Wylde OD. As crazy as it sounds, the Wylde OD just kills with this amp. The NS-2 eliminates the noise this pedal always dishes out, and I tend to back the level off on the OD and bump the gain just a tad. This works well to add some chunk, and kills some of the compression the pedal tends to add a bit much of. Works very well.

I did experiment with tubes. It comes with a JJ in V1, Ruby in V2, and JJ in V3. I tried several combinations, (I have a truckload of preamp tubes of all makes/types), and an NOS EI in V1, Tungsol in V2, and Sovtek LPS in V3 was just a magical recipe. I can't say enough how well changing them out really fine-tuned this thing. Lower gain tubes, (5751, AT7's, etc. to lower the gain a bit), didn't seem to do well. It kinda neutered the tone too much, rather than lowered gain. Like cutting it's nuts off.. I didn't care much for it. FWIW, I'm running lead gain at around 3.5 - 4, and boosting, and it just slays.

Overall, I'm very impressed with this amp. 1 watt mode works well for near silence, 5 watt even better, in terms of tone, (yet plenty loud), but full bore 20 watts is where it's at! What a killer little amp! It certainly has that 5150 DNA, I've owned both the 5150 & 6505, as well as the 6505+. To me, it has more of a 6505+ type of aggression, but I suppose that's just me. And for those who found it bright, fizzy, or buzzy, the presence control is your friend. I found it very effective, less is better, for sure, as well as the whole EQ section. I know tone is subjective, and we all have our tastes, but if you're a 5150 fan, you'll enjoy the shit out of this little beast.

Another tidbit - the overall EQ works VERY well, the slightest nudge makes a difference, whether it's bass, mids, treble, presence, resonance.. The volume taper is pretty good too. At about 2-1/2 - 3, it starts to breath fire! Under that, you're golden for killer tone at acceptable levels.
 
I have had mine about a week and I agree with you 100%....This Saturday I will be changing all the tubes to Gold Lion along with re-biasing it.I took off the front black wood panel along with the Peavey logo and it looks killer and keeps the little beast cooler.
 
Yeah buddy. I love this thing when I don't want to fire up my big boys.
This amp is brutal. You nailed it with the few things I do, to get the most out of the head. Keeping that lead gain down, and I have one of the new silver mxr 6 band eq I keep in the loop (that's the secret sauce), then my airis savage drive up front and it slays. Total monster for the size and power section. I was shocked to say the least. Enjoy it dude, I'm really enjoying mine. :rock:
 
I bought one 6 months ago but I returned because it had some issues and I've been wondering if I should give it another shot.
 
"had more punch out of the gate, (without the EQ in the loop engaged), than my JVM. No shit.."

You're JVM is broken or dialed in poorly.
 
D-Rock":38y6xljq said:
"had more punch out of the gate, (without the EQ in the loop engaged), than my JVM. No shit.."

You're JVM is broken or dialed in poorly.

Neither. It's the design of the FX loop, and having to run it maxed for certain pedals, (NS-2). It killed the tone,
 
So when you strip away the boosted front end and the augmented eq with the MXR...what kind/level of amp are you left with?
 
D-Rock":1lo0z16y said:
So when you strip away the boosted front end and the augmented eq with the MXR...what kind/level of amp are you left with?

The fact is, unless you run the FX loop 100% WET, the noise suppressor causes havoc with the tone, through the loop. Not sure if you've run it 100% wet before, but it's a fact, it sucks the punch right out of it. I've owned a JVM 3 times, I know it well. And, running the NS-2 in front, and setting the loop balanced - the punch is there, but I'm left with god-awful hum, attributed to multiple pedals, my particular environment, etc.. Compensating with the EQ is the only way for me to get the punch back, as the NS-2 in the loop was the better of the two evils, in terms of noise reduction, which only works with the loop 100% wet. Have you ever run a multi unit in 4 cable with the JVM? Works/sounds like absolute shit unless set 100% wet.

Keep in mind here, I'm in an apartment. The JVM needs decent volume to wake up, as expected. With the stars aligned, the JVM, obviously, shits all over the 6505MH. The rules are quite different, when playing at lower volumes, of course. No need for butthurt, I'm not bashing the JVM - It's meant to be juiced up a bit, whereas I get better results with the Peavey for my needs, plain and simple.

P.S. - I sold the JVM.
 
NECRO-Bump! (Forgive me...)

Swapping out tubes in my newly acquired 6505mh (got her in a trade) to soften her up just a bit as the aggressiveness is unearthly... I tend more towards a Mark V:25 as a standard marker for what I like, and I'd love to move this little beast just a bit more in that direction... meaning, not so 'cutting' and more 'I'm godzilla stomping heavily through your town.'

Replaced everything with some nice tubes (a Tung Sol, a Tad, and a Ruby HG) and even yanked the matched pair EL84's from my Egnater Rebel 30 II... there was a definitive change that seemed to smooth some things a bit, (might have to bias up again for more fine tweaking), but essentially, there always seems to be a subtle 'fizzy' element I can't quite dial out...

I'm wondering if there is a different power tube that might take that edge off without killing the aggression (my Mark V:25 is PLENTY aggressive!) Looking at Dougstubes and seeing some Sovtek EL84 with 'early/soft, average/medium, hard/late' options and wondering if this might get me where I'm thinking?

Anyone else done this with these little fire breathers?
 
I have one too, love it. I use an SD-1. I never messed with different tubes, I thought the ones it came with sounded great. Fun amp!!
 
I just piped it through the power section of my Boogie Mark V:25 and HOLY SHIT.... jesus just stumbled... the preamp section of the 6505 was definitely NOT the problem... the 'fizz' is coming from the power section. Perhaps a readjustment on the bias? Followed the advice of this guy:



So they might be running a bit cold as I barely got into the green (per the video).

But man oh man, the preamp of the 6505 into the power section of the Mark V is GLORIOUS...
 
Yet another update:

Re-biased the tubes again... took it further into the green until it started to hum and then backed off until the hum was gone. Although there is still a hint of the fizz still present, it's got MUCH more depth and much bigger and closer to the Boogie... however, the Boogie is crystal clear where the Peavey still sounds just a hair less 'hi fi' for lack of a better descriptive word. (I'm sure the tubes are running MUCH hotter, but hopefully if I cranked it a bunch the protect circuit will kick in)...

I need an 8ohm load box and I think recording this beast might be a very fun supplement to the Boogie...

(that preamp through the Boogie power section is just so tasty!)
 
Any recommendations on power tubes that will make this sharp aggressive beast a little more smooth and warm toward Boogie land?
 
Back
Top