Momentum M400MxV

**laynesaddiction** · November 18, 2021, 08:43 PM

I just heard about the upcoming rev of the M400 monoblock amplifiers.

MOMENTUM M400MxV MONOBLOCK AMPLIFIER | Dan Dagostino amplifiers

I was told it will be $10,000 a channel for an upgrade from M400 to M400MxV or $80,000 for a new pair outright.

If this revision is anything like the original Momentum to M400, there goes our bank account as I will jump on it in a heartbeat. ;-)

Thanks,

**joeinid** · November 18, 2021, 08:45 PM

I would absolutely love the S250 MxV. I don't know the price but it's probably not cheap.

**XV-1** · November 18, 2021, 10:25 PM

I wonder if they are keeping the M400 + S250 as is, or raising the price by 10 and 20k regardless?

I luv my S250, I wonder what a S250 MxV would be like? not much room left in those chassis

At least Dan D is giving existing owners the option of upgrading, rather than have to buy a brand new amp - Bravo for that

**Bar81** · November 19, 2021, 01:32 AM

The description makes it sound like it's another massive overhaul like from M300 to M400. Not sure why there's a big black stripe across the front, the design was perfect on the M400. Famous last words, but not sure how the MxV will be that much better than the M400 to justify the $20k upgrade cost

**Petzzz** · November 19, 2021, 01:32 AM

Originally Posted by XV-1

I wonder if they are keeping the M400 + S250 as is, or raising the price by 10 and 20k regardless?

I luv my S250, I wonder what a S250 MxV would be like? not much room left in those chassis

At least Dan D is giving existing owners the option of upgrading, rather than have to buy a brand new amp - Bravo for that

Definately agree with your statement and am looking forward to this upgrade for my stereo as well

**jlchen** · November 19, 2021, 04:17 AM

As the M400 has been out for a few years now, I am glad to hear the upgrade features trickling down from the much more expensive Relentless series.

Dan’s M400 is on my short list for my future upgrade. Regarding to the black stripe across the front, this may be just a light reflection in the picture. This same black stripe also appears in the existing M400 user manual’s.

**XV-1** · November 19, 2021, 06:55 AM

My dealer said they are getting in a S250 MxV so hopefully I will be able to compare to my S250.

**still-one** · November 19, 2021, 09:39 AM

I was expecting this. I wonder if the process will be the same as with the Momentum 400's. They filled the pipeline with new product before beginning the upgrade process. Last time in lieu of updating my original M300's I went with new M400's since there was a small design change I liked. This time I might just update my units as the exterior remains the same.

**Petzzz** · November 22, 2021, 12:32 AM

Originally Posted by XV-1

My dealer said they are getting in a S250 MxV so hopefully I will be able to compare to my S250.

Please kindly share your comparison with us at your convenience... will be looking forward to it thanks

**Bar81** · January 14, 2022, 09:25 PM

Originally Posted by jlchen

Regarding to the black stripe across the front, this may be just a light reflection in the picture.

You're right, it's been there since the M300 (maybe an attempt to show curvature?) so it doesn't look like there is any exterior design change.

**jlchen** · January 17, 2022, 03:05 AM

Just took delivery of our first pair of Dan D'Agostino amplifiers - M400. Definitely will want to upgade to MxV at a later time.

**exupgh12** · January 17, 2022, 05:25 AM

edited

**XV-1** · February 2, 2022, 08:09 AM

Has anyone done the upgrades on their M400's or S250's?

**still-one** · February 2, 2022, 10:08 AM

Originally Posted by XV-1

Has anyone done the upgrades on their M400's or S250's?

I haven't yet. I am waiting to hear the upgrade before pulling the trigger.

**laynesaddiction** · February 2, 2022, 12:06 PM

Originally Posted by XV-1

Has anyone done the upgrades on their M400's or S250's?

We comitted to the upgrade without hearing it since Dan has always come through for us in the past and we just loved the last upgrade. We have been on the list since mid-November, but have yet to hear form our dealer as to exactly when we need to send our units in.

Thanks.

**Grasshopper** · February 9, 2022, 02:18 AM

I’m sure it sounds awesome.

**laynesaddiction** · May 10, 2022, 04:27 PM

The local D'Agostino dealer just took away our M400 Momentums to be upgraded to the MxV version.

While it stinks to be without them for 4 weeks (2 weeks ship/back forth, two weeks at D'Agostino to rev them), I think it will take that long for my body to recover from pulling them from the system, moving them out of the house, and boxing them up. ;-)

Anyway, it appears that upgrades are starting to go through the system.

**still-one** · May 10, 2022, 06:40 PM

Congratulations. I am still on the fence, but I bet they will sound great.

**Ritmo** · May 10, 2022, 09:09 PM

Patience for the delight of what’s to come. I upgraded my previous Momentum Pre to HD and Power Amp to S250. Both upgrades were stupendous.

**jlchen** · May 13, 2022, 04:50 AM

Congratulations! Please let us know the sound differences when they come back!

**Marck1973** · June 7, 2022, 03:55 PM

So has anyone got their upgraded amps back yet? Mine are due to go back shortly and was wondering what level of improvement has been noticed.
Thanks
Marc.

**laynesaddiction** · June 7, 2022, 06:30 PM

Marc,

I am sitting four weeks to the day since they were picked up to be shipped to D'Agostino and I have yet to get them returned.

Thanks,

**jmusica** · June 7, 2022, 08:16 PM

If I’d paid that kind of money for something I would be none too happy with that level of service.

Why can’t they organize better and just say, “ok we’re ready for your amp in <1 week, please ship now” and have them turned around in a day or 2?

Then you’re not without very expensive hard-to-substitute gear for very lengthy periods.

**laynesaddiction** · June 8, 2022, 10:09 AM

Originally Posted by jmusica

If I’d paid that kind of money for something I would be none too happy with that level of service.

Why can’t they organize better and just say, “ok we’re ready for your amp in <1 week, please ship now” and have them turned around in a day or 2?

Then you’re not without very expensive hard-to-substitute gear for very lengthy periods.

In fairness to D'Agostino I was told it would be about 4 weeks (2 weeks at the factory, 1 week shipping to, and 1 week shipping from), so I am not unhappy at this point. Furthermore, I have had issues with the local dealer picking up the equipment from me in the past and sitting on it instead of immediately shipping it, so who knows how long the dealer sat on the units this time (regardless of them promising to ship it out immediately)? D'Agostino can't work on it if they don't get it in a timely fashion.

I do get your meaning, but over many years now I have always been taken care of with honesty and diligence by the D'Agostino team, so I am fine with their effort. Actually, I have nothing but good things to say about all the interactions I have had with them as they are truly professional folks.

Thank you for your thoughts though.

**jmusica** · June 8, 2022, 12:21 PM

@layne I think you're a more patient person than me!

But yeah, if the 4 weeks includes shipping both ways, that's not nearly as bad. I still would question 2 weeks at the factory, for what is likely at most a couple hours work per unit, plus a couple days burn-in/measurement (unless that bit takes longer).

Guess I shouldn't have given the impression I was impugning their service in general - just questioning the organizing around this process. I may be in a similar position soon for an upgrade on my amp. But I won't do it unless I can be sure I won't be without it that long as I have no back-up component.

**Marck1973** · June 8, 2022, 06:05 PM

Originally Posted by laynesaddiction

Marc,

I am sitting four weeks to the day since they were picked up to be shipped to D'Agostino and I have yet to get them returned.

Thanks,

So I was told about the same time when they have been picked up although may be longer since need to ship from the UK.

Hopefully yours will be back soon. Please let me know your thoughts when they are back in place. I’m assuming they will need to be run in again. Be good to find out if that is the case.

Thanks
Marc.

**XV-1** · June 10, 2022, 09:04 AM

I am sure the wait will be worth it. for the upgrade price, you would want Dag to do everything perfectly and in their own good time.

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