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Peavey MiniMega 1000

HPF in this case is referring to infrasonic filtering, or in other words filtering out lows that are just below or barely within the audio range. There's an easy way to tell if an amp has it. Grab a bass string and shake it back and forth over a pickup while you watch your speaker cones. If you see the speakers mimic your actions, the amp does not have an infrasonic filter.

I don't understand "Grab a bass string and shake it back and forth over a pickup".
My english is not that good, can you explain it.
 
Wow, that seems like a lot of amp for 5 bills. I could sell one of the amps I have now, buy two of these, and have some money left over. Tempting ...

The approach that I am taking is that I can possibly have another very nice amp at my disposal without setting myself back a lot of coin. But hey, the stuff I own is probably not in the same price range as your's. It performs well though. I may even look at getting the MiniMax also. At $299.99 it looks very intriguing....
 
Your Kosmos-C, that's the one that adds psuedo-bass right?
Does it also reduce actual subbass or simply increase upper bass harmonics relative to the lows it's synthesizing?

Yes, that's what Kosmos C does. Harmonics are added and nothing is subtracted. The phase of the synthesized harmonics is shifted so that when they sum back in, the harmonic series slightly alters the wave shape (additive synthesis). This process is all analog BTW.

As a matter of course how do both Kosmos' interact with the bass EQ knob?

The signal feed to the two processors is pre EQ. Dialing up the bass EQ knob reduces the Kosmos C effect in that it sort of defeats the purpose. You can actually turn the bass EQ all the way down, and use the Kosmos C harmonics instead for maximum effectiveness. Increasing the bass EQ with Kosmos A would just add even more bass.

Can you talk Hz about these?

Not specifically, just that each processor has a certain window of input frequencies that it works within.

What's the effect of using both together?
Pointless, magic, paradox?

People in a parallel universe loose control of their bowels, so Kosmos should be used responsibly.

How does the signal routing go are they before effects loop, parallel to each other, etc?

Pre effects loop. The output of the processors are in parallel.

All this stuff is spelled out in the operating manual by description and block diagram.
 
I don't understand "Grab a bass string and shake it back and forth over a pickup".
My english is not that good, can you explain it.

Hold your lowest string between two fingers over a pickup. Use your hand to move the string side to side over the pickup. Basically, you want to move the string slowly (less than 10 times per second) compared to how fast the string would vibrate if it were plucked. Watch the speaker cones while you do that.
 
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Hold your lowest string between two fingers over a pickup. Use your hand to move the string side to side over the pickup. Basically, you want to move the string slowly (less than 10 times per second) compared to how fast the string would vibrate if it were plucked. Watch the speaker cones while you do that.
I tried moving the string less than 10 times per second, but I guess my movements were too fast. Any advice on how to move the string more slowly? Maybe try doing it under water or within some kind of gel medium?
 
Tried to hang in there but my backup MegaBass head went down last night. Went to the Ashdown Rootmaster 800. Good fortunes to those who can wait. After 35 years of Peavey bass amplification use, I sort of regret moving on, but I also switched from a Boogie head to an older Marshall DSL100 and am finally happy with my guitar tone. Maybe this will do the same for my bass rig, it will certainly be a different sound than the one I've had for so many years. I have liked my bass tone over the years, so I'm not dissing the fine people of Meridian MS at all. I just wished they could have hit the streets a tad sooner.
 
I, too, would like to thank Bobby B. for his thoughtful replies here. It's appreciated.

More questions:
Are the pots mounted to one of the circuit boards? I've read differing opinions on the implications of doing this. I suspect that they have been so mounted in most of the micros I've owned or just played - don't recall any catastrophic failures because of this (indeed, it seems more likely that something else would go wrong). Still, mounting the pots to the chassis with leads to the board seems a safer bet... Anyway, I'm curious about this.

Slightly off topic: are the stereo and selectable stereo/bridged mono versions of the power section available for purchase? I am nowhere near DIYing an amp - even a simple power amp - just yet, but I've thought about it, and the tiny poweramp has become a popular topic here of late.

Related: Is there a power-amp in? I see them less on amps these days. If not, how "clean"/uncolored is the effects return? Basically, can you use this as a small poweramp, bypassing the EQ and inherent voicing of the amp? I'm not necessarily expecting the amp to have this - most integrated heads I know, don't. It would just be a nice bonus.

Am slightly intrigued by the KOSMOS, even though I don't usually go for onboard effects of any kind - more so, admittedly, after reading that it's all analog.
 
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Related: Is there a power-amp in? I see them less on amps these days. If not, how "clean"/uncolored is the effects return? Basically, can you use this as a small poweramp, bypassing the EQ and inherent voicing of the amp? I'm not necessarily expecting the amp to have this - most integrated heads I know, don't. It would just be a nice bonus.
The Aguilar Tone Hammer 500 works like this when using its effects return, with just the master volume control in the path on its way to the great sounding (IMO) power amp. At home, this is how I use the amp, actually, as it sounds so good with my LDS cabs and all my basses, no EQ needed. :hyper:
 
Ha! I had a TH500 and sold it. Nice amp - and I really dug some of the sounds I could get with it and my fretless P - but wasn't quite clear/articulate enough for some of the things I like to do with my P/J. I have a rack-mounted Demmie HBP 800D that, as far as I know, works this way. The effects loop is switchable in/out and the send/return levels are adjustable. Lets you switch between it and another pre quickly - fantastic feature, in my opinion, but it's three times the price of this amp.
 
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First picture of Hartley's"purse".
1600-MiniMEGA_detail6.jpg

Doesn't look too bad. Wish they'd have taken the picture with the amp in it though.
Would like to know if it fits snug.
 
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