What is the MEGAschino Cherry ?

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AmpDesigner333

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What is the MEGAschino Cherry ?
« on: 24 Apr 2017, 04:19 pm »
Introducing the MEGAschino Cherry Amplifier!

Here's an "old" Cherry PLUS amplifier.  It is one of several versions of what we call the "Classic Cherry"....


We started producing the DAC4800A amplifier in 2006.  It was a pro-sumer type product with a Run/Stand-By toggle button and Power/Clip/Protect/Run LEDs on the front.  We later put the LEDs inside (they shine through the lid vent holes) and added a red anodized 3/8" thick brushed aluminum faceplate.  This was our first Cherry Amplifier®.  Later, we moved to a simple lineup: Stereo or MONO and Standard or ULTRA.  Several faceplate options were added, like silver, black, and even cherry wood.  We still make these amplifiers today.  The ULTRA versions have 1500W transformers and GOLD WBT posts with improved output filters and double power supply capacitance on the MONO ULTRA version.

After years of successful production and great reviews, we introduced the Maraschino Amplifier.  The Maraschino was a new circuit design able to reach 100kHz bandwidth with end-to-end DC coupling for response down to 0Hz and no bass phase shift.  The ground of the amplifier is locked to the preamp (or DAC) ground to eliminate hum and ground noise.  The result?  Customers and pro reviewers alike praise the Maraschino for sonics that go way beyond today's cookie-cutter "me-too" module based high-end amplifiers.

The Maraschino Amplifier product line grew to include Desktop Maraschino, a new shape for monoblock amplifiers, In-Line Maraschino, amplifiers so light, you can hang them from your speakers, yet so powerful, they can deliver up to 1000W into 1.8Ω, and Stereo Maraschino, an integrated amp with front and back inputs plus volume control.  All of these are powered by external switching power supplies, until now.  We are now offering an external linear power supply as part of our rewards on this project, but back to the matter at hand....

Although the Maraschino's power delivery into 4Ω is an admirable 400W (with 60V 1kW power supply), what if you crave even more power with that signature super-clean-and-fast Maraschino sound?  How about more than double the power?

Enter the MEGAschino amplifier: Maraschino sound with Classic Cherry power.  Through years of R&D, we were able to build a new, high-voltage version of the Maraschino.  This was no easy feat.  With this new design, we are able to provide all the benefits of the Maraschino design with the voltage and current carrying capability of the Classic Cherry, and MORE!  With even lower output impedance and wider pulse differentials, you can get approximately 10% more power into your speakers from the same power supply.

As with the Classic Cherry The MEGAschino uses an internal large toroidal transformer (no external power supply) in a built-like-a-tank 16 gauge steel chassis.

This graph shows the difference in sonic performance versus power output of the Cherry Classic, Maraschino, and new MEGAschino:


The MEGAschino is ONLY available through our current Kickstarter project at this time. The cost of getting yours will go WAY up once we get into production.

PLUS....  You're in luck if you're a Classic Cherry owner!  We are also offering a motherboard upgrade reward to convert your amp to a MEGAschino (browse the rewards).


Here's our current Kickstarter project, Maraschino Video Series:
https://www.kickstarter.com/projects/378044010/maraschino-video-series

Thanks.

-Tommy O

AmpDesigner333

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Re: What is the MEGAschino Cherry ?
« Reply #1 on: 2 May 2017, 11:14 pm »
Preliminary power output of MEGAschino:



These are conservative numbers.  We expect between 900W and 1000W with the 1800W transformer (these were available for a limited time, but we may start making them again), and probably 900W+ with the 1500W models.  That's into 4 ohms.

n2djazz

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Re: What is the MEGAschino Cherry ?
« Reply #2 on: 19 Aug 2017, 01:54 am »
so, is the 1500W transformer equipped Cherry Ultra the same as the MEGAschino?

AmpDesigner333

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Re: What is the MEGAschino Cherry ?
« Reply #3 on: 19 Aug 2017, 10:02 am »
so, is the 1500W transformer equipped Cherry Ultra the same as the MEGAschino?
Yes, it is.  Thanks for your post.

AmpDesigner333

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Status update
« Reply #4 on: 19 Sep 2017, 03:46 am »
We had to divide the design into two boards.  There was just not enough room on one!

So....   The first board is complete, and we're working on the second one now, maybe about 2 weeks from the prototyping phase.

AmpDesigner333

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Re: Status update
« Reply #5 on: 10 Nov 2017, 01:10 pm »
We had to divide the design into two boards.  There was just not enough room on one!

So....   The first board is complete, and we're working on the second one now, maybe about 2 weeks from the prototyping phase.
Quick update:  The Channel Boards checked out.  Measurements were better than expected.  We're getting the Motherboards soon (less than 2 weeks) for testing.  So, we're almost there!  Just a few things to do on the side, like the faceplates (for new MEGAschinos, not the upgrades which will use the original plates)....

-Tommy O