Hypex Ncore NC 1200 Ultimate Audiophile monoblock power amplifiers 1200 watts rms

The listing is for the monblock amplifiers as shown in the photos
$3,920 per pair of monoblocks, discounted from $12,000 new
You can buy single pieces and there are no Krell badges

1 years warranty remaining. Barely run in – less than 100 hours

5 suround channels from my home cinema - I am still keeping the front amplifiers, as these amps sound so superb.
I have to very reluctantly downsize due to a much smaller apartment... They are professional models, custom made with extra high spec components listed below
Delivery and Paypal / card fees not included - at cost


TRULY EXCEPTIONAL SOUND QUALITY

*  S/N 130db  
*  IMD 0.001%   20Hz - 20kHz  @ 1 watt
*  THD less than 0.002% at 50% full power and full range 20Hz-20KHz into 8 and 4 ohms !!
*  Stable down to 1 ohm

*  1200 watts  @ 2 ohms    per channel
*  700 watts    @ 4 ohms        "    "
*  400 watts    @ 8 ohms        "    "


ULTRA HIGH END AUDIOPHILE PEDIGREE

These products use the same amplifier module

* Jeff Rowland 925   -  Eur 81,000 per pair of monoblocks
* Jeff Rowland 825   -  Eur 42,000 stereo amplifier
* Meridian
* Classe
* Mark Levinson
* Theta Prometheus     -  $12,000 per pair of monoblocks
* Merril Audio Veritas   -  $12,000 per pair of monoblocks
* Trinnov Amplitude 8  -  £12,000 power amplifier with restricted shared power supplies
* DataSat 7300            -  £14,400 power amplifier  
            -  uses smaller NC500 module & restricted shared power supplies
* Marantz PM10 Reference    -  £7,000 flagship power amplifier
            -  uses smaller NC500 module
* Nad Masters M22 v2 flagship power amplifier
            -   uses smaller NC500 module & restricted shared power supplies


PROFESSIONAL REVIEWS

Review in Stereophile of Theta Prometheus $12,000 pair
Highly respected audophile publication - uses same amplifier module
(https://www.stereophile.com/content/theta-digital-prometheus-monoblock-power-amplifier)

"Several seconds after I began listening to it, I knew that Theta Digital's Prometheus monoblock amplifier ($12,000/pair) was different from other amplifiers.
The violins and brass were more dynamic, and had more pace.
The orchestra sounded more three-dimensional, depicted in relief by a degree of hall ambience I hadn't heard when I played the same recording through my reference solid-state stereo amplifier, a Mark Levinson No.334
The most striking things about the Prometheus's sound were its huge dynamic range and bass impact.
The Thetas' high power and dynamics were heard in the stunning synthesizer percussion of struck chimes and thunderous bass drum The Prometheuses projected a broad, detailed, involving, three-dimensional soundstage.
The Thetas reproduced the full, surging power of the violins' emphatic, fierce fast pattern, coupled with pounding brass and drums.
The Thetas' reproduction of it was the best I've heard in my listening room.
The Prometheuses produced excellent imaging and soundstaging.
The Prometheus's bass response was outstanding.
The midrange response blossomed when my speakers were driven by the Thetas.
Whether the volume was low or high, I heard delicate differences in tone and timbre in male voices, piano, and percussion instruments.
Similarly, the Prometheus transmitted more of the timbres and harmonics of solo male voices, without tubbiness or midbass emphasis.
Overall, for me, the Theta Prometheus delivered the most emotionally involving sound.
The Prometheuses delivered better midrange and treble definition, greater depth of field, greater jump factor, and better imaging than any other amplifier I've heard in years.
It let the Revel Salon2s sound more alive and more dynamic than ever, with faster, deeper bass response, and made it possible for the combo of Revel Salon2s and Revel Rhythm2 subwoofer to deliver better synergy than I'd heard before.
The Theta Prometheus even delivered sweet, open highs and solid bass from my electrostatic Quad ESL-989s.

My last impression of the Prometheus was the same as my first:
It's one of the best-sounding amplifiers I've heard in my listening room.

Seven months after I began listening to it, its soundstaging, imaging, depiction of detail and speed and slam, and its exciting dynamic contrasts remain totally addictive.
I give it my strongest recommendation for inclusion in Class A of Stereophile's "Recommended Components."


Review in Positive Feedback of Merril Audio Veritas - $12,000 per pair
Same amplifier and power supply  (audophile publication) 
(https://positive-feedback.com/Issue68/merrill_audio.htm)

"Merrill has created an amplifier of superior sonic and musical performance.
Veritas have a remarkable ability to generate a stage populated by solid images, of yielding a wide frequency extension that remains consistently musical, of creating an immersive neutrality with no traces of clinicality, an astonishing imperviousness to intermodulatory fatigue, an authority and transient behavior which combine naturalness with speed, and a singular ability to reach into the subtle filigree of micro detail."
"The authority of the introductory low brass chorus in the second movement of Dvorak's New World Symphony stuns me with positioning in space, textured growl, breathing of players, resolution of individual voices, and the crisp cuivre of the tenor trombones on the fff climax of the section."
"The Merrill Veritas monoblock rests at the vanguard of a new performance paradigm in high power amplification—regardless of technology and class of operation".

"Veritas performance transcends any stereotypical subset of audiophiles, prefixed by competing technological qualifiers: be these lovers of solid-state amplification, or the militant wing of tubed audiophiles."

"Hence, let me restate for the record: the Merrill Veritas is a magnificent high power monoblock amplifier for lovers of music… It will deliver an enchanting and majestic sound for discerning audiophiles of every stylistic and technological persuasion."


BACKGROUND

These are the ultimate power amplifiers designed by internationally renowned Bruno Putzey of Hypex.
Never available second hand - all owners recognise they have attained audio nirvana with nothing to upgrade to.

I have been using different high end separates and power amplifiers now for twenty years and my last two home cinemas were over £250k each.
These have the best sound quality I have ever heard.


SPECIFICATIONS

*  1200 watts  @ 2 ohms    per channel
*  700 watts    @ 4 ohms        "    "
*  400 watts    @ 8 ohms        "    "
*  93% efficient at full power
*  Fully Balanced Differential design
*  Stable down to 1 ohm !
   Ultra Flat Super Linear Frequency Response
*  +0db/-0.4db  0Hz - 20kHz - All loads
*  +0db/-3db  0Hz - 50kHz - All loads


POWER SUPPLY

*  1200-1500w power supply incorporates highly efficient 2 quadrant DC/DC converter
*  Specially designed to handle reversed currents
*  Peak power handling is many times its rated power
*  1200w @20Hz, i.e. very strong deep bass


ULTRA LOW NOISE  -  Ultra High Musical Detail, Transparency & Resolution

*  THD  less than 0.002%   20Hz - 20kHz  at 50% max power 4 and 8 ohms !
*  IMD   0.001%   20Hz - 20kHz  @ 1 watt
*  Not enough distortion in the audio band at higher frequencies to measure !
*  Signal to Noise Ratio 130dB (A-weighted 400w @ 8 ohms, 700w @ 4 ohms
*  Power Bandwidth 35kHz
*  Output Noise 7 to 8 microvolts unbuffered!!
*  28 -30 microvolts buffered
*  Output Impedence  less than 2 milli ohms <15kHz,  3m Ohm <20kHz
*  Power Supply Ripple Rejection  75 to 80db
*  CM Rejection Ratio CMRR 55db


MAXIMUM OUTPUT CURRENT    38 - 40 AMPS  per channel

38-40 amps is unprecedented. Which is why these amps are known for having thunderous bass and a vice like grip on speaker drivers.
They can drive even the most difficult and low sensitivity speakers with ease.

Making many speakers feel they do not need subwoofers anymore.

Dedicated 1200-1500watt power supply and power supply connection per channel, true monoblocks

*  120v or 240v switchable (not auto switching)
*  These are famous for having almost unmeasurable distortion and the clearest most transparent sound ever


CUSTOM HANDMADE ONE OF SPECIALS

These professional models were hand built as one off custom specials for a very high spec home cinema. There are numerous upgrades over the standard specification, listed below.

UPGRADES FROM STANDARD SPEC FACTORY CABLING
*  Special connections and professional cables
*  Designed for the lowest noise most transparent sound
*  With maximum current capability and least resistance possible


SPEAKER CABLE

CRYOGENICALLY TREATED  FOR  ULTRA LOW NOISE

*  Mogami W3104 "Superflexible High Definition Professional Studio Cables"
*  "Originally designed to deliver maximum performance from state-of the-art Bi-Amp & Tri-Amp Systems"
*  Ultra premium cable made in Japan using Neglex Oxygen Free Copper (an ultra pure grade)
*  Larger bass and more dynamic than Neotech etc Ohno Continuous Cast Copper
*  Cryogenically treated speaker cable - very clean power delivery
*  Cryogenic treatment reforms the copper into far longer crystals
*  And makes the outside surface of the strands far smoother
*  Greatly improves the electron flow along the cable
*  Through greatly reducing the micro distortion from the micro diode effect of crystal to crystal electron transmission


ULTRA LOW RESISTANCE
             &
BI-WIRED AS STANDARD

*  Transmits the massive currents to the speakers with the least resistance possible
*  4 x 4mm of Neglex oxygen free copper helix wound and double insulated to reduce cross talk and interference
*  Each 4mm core directly connected to the amplifier output modules
*  2 x 4mm dedicated for woofer connection
*  2 x 4mm dedicated for tweeter connection
*  The over size 4mm cores have a very low resistance
*  0.005 ohms/m
*  Extremely low inductance
*  0.06 micro H/m


EXTREMELY LOW INTEREFERENCE

*  Enables the large dynamic current transients produced from these amplifiers to transfer with minimum resistance to the speakers
*  Diagonal connected pairs greatly reduces mutual inductance
*  Cross-talk interference is negligible
*  Very low capacitance between diagonal pairs
*  No binding posts and inferior small gauge internal cable
*  Therefore no electrical noise from an internal cable connection to a speaker post
*  No electrical noise from a speaker binding post to speaker cable

*  Included - they cost £70 per meter and have 3 - 5 meters per side
*  I have different sizes, let me know what you need
*  Mogami is famous for being used in high end recording studios.
*  This cable is normally not used, due to its very high cost for long runs.


INTERNAL POWER CABLE

from 1200 watt power supply to amplifier
*  Upgraded from factory standard 2mm to 3.3mm
*  Using special cables from the 3.6kw power supply to the 2,000 watt power amplifier module
*  Cryogenically Treated - very clean power delivery
*  Gives a far higher current delivery to the amplifier module, for better transients and dynamic delivery


POWER SUPPLY CONNECTIONS

* Neutrik professional 15amp silver plated heavy duty connection
* Not the average C15 kettle lead connection
* Far higher current delivery
* Lower noise connection
* Twist locks for safety
* Will not get pulled out easily by accident or a loose connection


AUDIO SIGNAL CABLE

* Cyrogenically treated Hypex Quiet Conduit signal cable
* Direct connection to Neutrik XLR using silver solder
* I also have the RCA connection if you do not have XLR


QUIET CONDUIT CABLE

The design incorporates several refinements over normal balanced cables.
A conductive polymer interface layer between the braid shield and the insulation of the signal conductor short-circuits triboelectric currents where they are generating, virtually eliminating microphonic noise pickup.
A secondary benefit of this layer is to improve the electrostatic shielding effectiveness of the braid shield.
Another crucial improvement is the elimination of drain wires, which is normally included for ease of termination but which allow shield currents to couple noise asymmetrically into the signal conductors.
The geometry of the QuietConduit cable is precisely controlled, insuring that any noise coupling is strictly limited to common mode.   


CASES

* Anodised Gold Effect Aluminium Slimline cases
* Large gold effect Aluminium Heatsinks on the outside
* 3mm thick solid aluminium internal shielding between power supply and amplifier
* Acts as internal extra heat sinks
* Keeps separate runs for power cables away from speaker and signal cables
* Specially designed to have minimum cross talk and interference between cables
* i.e. lowest noise possible, you will hear things in the music you never heard before
* Far less energy consumption and far cooler than Class A and A/B
* Over 90% efficient
* No Krell badges



DIMENSIONS

* 336 mm wide
* 75 mm high
* 208 mm deep


NOTES

* There are no switches in the power or signal paths of these amps.
* The power cable goes directly into the Neutrik professional 15 amp connectors
* They are best left on to stay warm for the best sound like nearly all power amplifiers
*  Very efficient and do not burn much electricity - unlike Class A amplifiers !
* Only 15-17 watts at idle, i.e. less than a traditional 100w light bulb
* Some of the photos show the case with sockets and speaker connections etc.
* There are no sockets and connectors, due to the direct connection methods for higher quality and lower noise
* These were sent to me and are just for illustration to show the case
* There are no Krell badges on the case


DELIVERY

Express Courier is at cost price
International Express Courier is available to many countries
Please contact me for an exact quote. The price quoted is just for guidance.