2. amps-preamps
  3. 133358-113

Vandersteen's new affordable mono blocks at the CES 18

Just got an email that his new amps will be unveiled at the CES.  Here is what I got.  I can't wait.  He has adjustable crossovers so you can use them on any speaker that doesn't go down to 20HZ, which is 99% of teh speakers on the market.  Here is what they said:

Vandersteen Audio Introduces the Next GREAT Amplifier at CES 2018!Venetian Suite 29-203
Vandersteen Audio shook up the audio world with its liquid-cooled M7-HPA monoblocks, a radical advance in power amplifier design and loudspeaker performance that is Stereophile Class-A rated as a true reference.Vandersteen is doing it again at CES 2018 in Las Vegas, where you can get the first look and listen at a pre-production pair of the upcoming M5-HPA (High-Pass Amplifier) monoblocks! The M5-HPA is a solid-state design descended directly from the flagship monoblocks. It will be substantially less expensive, but will offer an astonishing amount of the flagship's sonic magic. While the M7-HPA is designed specifically for Vandersteen's Model Seven Mk II speakers, the M5-HPA will work with a much wider variety of loudspeakers and Vandersteen powered subwoofers. To accomplish this goal, while the M7-HPA's high-pass is fixed at 100Hz, the M5-HPA's internal high-pass filtering is adjustable to any of the following five settings: 20Hz, 40Hz, 80Hz, 100Hz, 200Hz.Vandersteen for years has employed high-pass filtering with powered subwoofers for the ultimate in powered-bass performance. When paired with a Vandersteen powered-bass speaker like the Quatro Wood CT the M5-HPA forms a complete powered-bass speaker system in which the amplification is perfectly optimized over the entire frequency range.
Richard Vandersteen is responsible for the M5-HPA’s overall design and architecture; the amplifier was developed and is built in partnership between Vandersteen Audio and Dean Klinefelter, a talented designer and engineer in his own right. 
Vandersteen powered-bass speaker systems are the ultimate expression of Richard Vandersteen’s philosophies on design and performance, formed over decades of industry-leading design & research & innovation.
M5-HPA's technical attributes:
  • Zero-Feedback Solid-State Design With Dual Single-Ended Circuits Connected By The Speaker Load
  • All Signal Transistors N-Channel Bipolars 
  • No Emitter Resistors
  • Minimal Circuit Path- Only 5 Parts In Signal Path Per Phase
  • 10 Separate Power Supplies
  • Adjustable High-Pass Filter (20Hz, 40Hz, 80Hz, 100Hz, 200Hz)
  • 300-Watts Into 4 Ohms / 150-Watts Into 8 Ohms
  • Made In The USA


ctsooner
gdnrbob
4,478 posts
 
@blaven2, 
Welcome to Audiogon!
And, thanks for posting your impressions about the Vandy amps.
Ctsooner, and I are Vandy champions. (I bought his Treo's and think it was one of my better purchases).

I would be interested in comparing the Ayre MX-R's with the Vandersteen M5. I own the former and think they really are quite amazing with my Treo's-Though I just paired them with an Ayre KX-R and was so impressed as it smoked my Atma-Sphere MP-3. Now I have Ralph building an MP-1 for me.
I know, I need help🥴.
Bob
ctsooner's avatar
ctsooner OP
2,480 posts
 
Bob, I'm so happy that you love them.  I was worried as I always am when selling.  I will tell you that you will ike them better than the non 20 version of your amps.  The 20 upgrades were that large IMHO.  Everyone I have spoken with who had auditioned the new amps put them up against 30k amps. 
tomic601's avatar
tomic601
13,156 posts
 
Sorry I missed contributing to this thread since my post way back in January of 2018, when I first started running the M7-HPA amp. I have a thousand ish hours on them now and absolutely LOVE them. Zero issues, musical from day one, certainty no harsh midrange or treble and in fact I have been pushing speakers out into room and creeping a bit closer to side walls w no I’ll effect. In conversation w Richard he and Dean set some very ambitious goals for the smaller and much more affordable M5 amps. I believe they attained them. I can’t comment about 5a carbon driven by Pass other than to say I have deep respect for Nelson, his gear is always rugged and top notch. I still have a 400 A :-)
as to Quatros driven by a REF110, I have heard that and the M5 certainly should better it, a more direct comparison might be the REF150 se, Magic midrange like the 5
finally in filters, those of you using outboard high pass consider the model 7 high pass, better caps, more DBS juice and a non resonant case with WEL pigtails... I ran those w model 5a before getting the 7’s
have fun
enjoy the music
tomic601's avatar
tomic601
13,156 posts
 
But I will comment a bit further, the M5 amp and Quattro CT are reviewed and measured in this month Stereophile.JA keeping amps to review as stand alone as the high pass is switchable.

RV calls his approach an “ unfair advantage “ in that he can optimize the amp to work with a known load ( his speaker) and avoid the issues with trying to build an amp flat to zero and also allow for some additional features unique to his shared DBS patent like 128 V
non technical ???? Just freakin listen :-)))

ah.....
ctsooner's avatar
ctsooner OP
2,480 posts
 
agree. just listen.  I also agree on using the better high pass.  Mine was built into the Ayre integrated and they used the better parts.  
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