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Jule Amp M700

Discussion in 'Amps and Cabs [BG]' started by nostatic, Dec 29, 2014.

  1. nostatic

    nostatic Supporting Member

    Jun 18, 2004
    central coast
    Endorsing Artist: FEA Labs
    Cross-posted from the Monique thread - figured these deserve their own thread. The M700 is Jule's take on a class D power amp. Instead of the usual ICE module (often pushed beyond it's original spec), the M700 uses a Hypex module and the amp is conservatively rated at 700W into 4 ohms. I have been running a Monique/Minnie combo for a couple years and love the "tubey" feel of the rig. Jule was involved in designing Minnie, though James Demeter did the builds. I love love love Monique and actually Jule and I talked about a new power amp at NAMM last year, when I picked up two power amp prototypes to test (one class D, the other low-power tube).

    Anywho, flash forward to today. The M700 has been out on four gigs, and two bass player friends have come over and done some A/B testing comparing the M700 with Minnie.




    So my bass player buddy Harry came over 25dec and we ended up doing some quick A/B test between the power amps. He was playing one of my Smiths, and commented about how the last time he came up he thought there was a lot of "tube sag" in the feel. Today he said it felt quicker. The difference? Last time was Minnie, this time M700. So I broke out Minnie and we went back and forth. Definite difference in sound. Minnie was a bit darker - less highs, more mids. There also was a bit of sag. The M700 by contrast was very quick feeling, and more neutral in tone. The Smith sounded more open and extended with the M700.

    Stuebig likely will come over this weekend so more thoughts to follow. But I'm liking the M700 so far. I've gotten over the form factor change, and actually like how the stack looks. The Gator 15x15 bag holds the amp just fine with some space to spare. The 12x12 does *not* fit.


    Some follow-up testing with Steubig in the house 28dec. We went back and forth using Monique as the front end, H1203 and TC112 cabs (both by themselves and in combination), and swapping the Minnie and M700. Bottom line is that they sound different - and fairly significant depending on how picky you are. At the risk of tonal descriptions:

    M700 - more extended highs, more open sounding. Maybe a bit "quicker", and enable harmonics to speak effortlessly.

    Minnie - more lower mid push, less open highs, more compressed

    I think if I were playing a rock gig, Minnie might get the nod as it is a tad thicker and a bit more punch. The M700 is a bit more "hi fi" to my ear. Form factor depends on what you like. Minnie certainly is smaller (both are about the same weight). I think I'm likely going to run the M700 and probably sell Minnie and just find something cheap as a backup amp. Steuart will likely chime in with his thoughts.
    Last edited: Dec 29, 2014
  2. esa372


    Aug 7, 2010
    I love Jule's work... really happy to see this.
    Jason Sypher likes this.
  3. Chef

    Chef In Memoriam

    May 23, 2004
    Columbia MO
    Staff Reviewer; Bass Gear Magazine
    It looks bigger than I thought it was; which is fine.
    It's still not big.
    From your descriptions, I presume I'd like the 700 better; and I think a clean, more open power amp is probably a great fit for the tube preamp; letting it's characteristics pass right on thru.

    Cool stuff. Exciting.
    This, and the wrecking ball deal. Cool cool cool.
    juledude, Jule Potter and Fat240 like this.
  4. Cashu


    Feb 9, 2008
    Boston, MA
    Looks like the fan operates in the same way as Minnie?
  5. tombowlus

    tombowlus If it sounds good, it is good Gold Supporting Member

    Apr 3, 2003
    North central Ohio
    Editor-in-Chief, Bass Gear Magazine
    It is my understanding that Jule and James designed the Minnie 800D with some intentional high frequency roll-off, to further that "vintage vibe." I presume that the M700 does not roll off the highs?
  6. Cool cat. Burmese?
    DrayMiles likes this.
  7. nostatic

    nostatic Supporting Member

    Jun 18, 2004
    central coast
    Endorsing Artist: FEA Labs
    Pound rescue - half Russian Blue. He's awesome.

    I think Minnie is rolled off a bit on both ends. From what I can tell the M700 is flat in both directions. I'll gig it tomorrow night in a loud situation but from the gigs already along with at home I don't think it will break a sweat. One advantage to using a module at below its spec.
    Jule Potter and Jim Nazium like this.
  8. nostatic

    nostatic Supporting Member

    Jun 18, 2004
    central coast
    Endorsing Artist: FEA Labs
    Yes, but it is quiet and from what Jule says, probably overkill. One reason for the larger enclosure is to provide a huge heat sink. I haven't even noticed it getting warm yet.
    Jule Potter likes this.
  9. SanDiegoHarry

    SanDiegoHarry Inactive Supporting Member

    Aug 11, 2008
    San Diego, CA
    My boy nostatic, once again, is making me think financially irresponsible thoughts. He is a very bad man.
    Amplified, preside, Randyt and 4 others like this.
  10. foderaman


    Jun 14, 2005
    Should be getting my M700 tomorrow !!! See what you started chadds !!! I had to say that because as far as i remember chads was the first TBer that had a Monique that was about 3 years ago and he was my go to guy to find out everything about Monique when i got mine about 2 1/2 years ago.
    Last edited: Dec 30, 2014
    Jule Potter and tombowlus like this.
  11. Dominick C.

    Dominick C. Guest

    Jul 2, 2012
    Austin, Tx
    I don't like mean people or mean comments....
    My first impressions follow along the same lines. The sound seems more "open" or "flatter" in both directions. "Faster" is also a great way to describe her. Kinda reminds me of a Stewart amp with how fast and defined it is, especially down low. I thought the notes were jumping outta my fingers when I was playing the Minnie, but after an A/B test there is a hugely noticeable difference. Nuances are being more clearly reproduced through the M700. The Minnie defiantly seems to be rolling off both lows and highs, making it seem a little darker. I have also noticed a large difference in the way my pedals sound. I recently picked up a new Nimbus with the new bass and high control. With the Minnie I felt like the difference was nominal when I tweeked the high setting. The M700 makes the control super usable now. I was able to get some really "shimmery" tones.

    I was not crazy about the form factor, or the front input. After 2 hours with it I could not care less. It could smell and look like a turd on my amp as long as it sounds like it does.

    Lastly.....Noise. I did a dry test A/Bing the two amps. Basically o just plugged everything in and turned everything all the way up. No signal, just the bass plugged in like in between songs. The Minnie was noticeably noisier. I know that the fans are simular or the same but I feel like the Minnie's fan is also noticeably louder. All in all I feel like the M700 is just way less noisy. The M700 also seems more powerful. Maybe that is just the flat response making it feel so much bigger, but I feel like this thing is going to melt my face off.

    I did notice that with Monique all the way up I was not able to get the M700 to even flash the yellow indicator on the front. I was playing a passive Smith so I will have to try the active Dingwall later.....
    Last edited: Dec 31, 2014
    Jule Potter likes this.
  12. foderaman


    Jun 14, 2005
    Well it looks like the Fedex driver took a super long nap over the road in Kansas! So what was supposed to be delivered today is now Friday!!
    Jule Potter likes this.
  13. Peter Lufrano

    Peter Lufrano Blues. and nothing but the Blues.

    Apr 18, 2004
    Berkeley, CA
    Hi Tom,

    From the test results in your magazine, I don't recall there being any indication of the frequency response being rolled off at either end of the spectrum, or did I miss something?
  14. Baird6869

    Baird6869 Supporting Member

    I hate what that happens!
  15. evilgus

    evilgus Supporting Member

    Feb 27, 2006
    Sydney, Australia
    Does anyone know what the amp outputs into 8 ohms?

    Jule Potter likes this.
  16. Hey! I resemble that remark!
    Jule Potter likes this.
  17. nostatic

    nostatic Supporting Member

    Jun 18, 2004
    central coast
    Endorsing Artist: FEA Labs
    We were loud last night. This this scoffed at the volume and forced people onto the dance floor...

    Randyt, azwhofan and Jule Potter like this.
  18. Jule Potter

    Jule Potter Guest Commercial User

    Apr 16, 2014
    Santa Cruz California
    Owner of Jule Amps
    Nay. No roll-off for the M700. Not on the bottom or on the top.

    As the Monique community has grown, I have learned a lot. I now understand that players are greatly more capable than I will ever be at managing their sound, including both the very bottom and the upper end. I see my job increasingly as providing a wide and accurate representation of everything that comes off the fingers.
    WG Plum, irbass, 31HZ and 4 others like this.
  19. Jule Potter

    Jule Potter Guest Commercial User

    Apr 16, 2014
    Santa Cruz California
    Owner of Jule Amps
    Loud is good. :)
    mbelue likes this.
  20. Jule Potter

    Jule Potter Guest Commercial User

    Apr 16, 2014
    Santa Cruz California
    Owner of Jule Amps
    It is about 400 watts.