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  1. Holton Five-Zero-Zero Supreme

    Here is a photo of what resides inside...
  2. Holton Five-Zero-Zero Supreme

    Great look forward to meeting you guys. The loudspeakers that will be paired with the Supreme amp is the largest one on the left. I hope to have a second system running as well running one of the One-Zero-Zero amps with a pair of the smaller SGR loudspeakers.
  3. Holton Five-Zero-Zero Supreme

    Thanks @soundfan , it is really good to get some comfirmation on the case design. Sorry to hear you cannot make it to the show this year perhaps next year?
  4. The Holton Five-Zero-Zero Supreme is the latest design from Holton Audio and is a true dual mono bloc power amplifier encapsulated in one chassis. Featuring a 2KVA toroidal power transformer which is suspended underneath the main amplifier circuitry mounted on its own mezzanine floor. The power supply features 300,000uf of storage and extensive additional supply decoupling on the input VAS driver stages. The new supreme also has additional MOSFET driver stage to tightly control the main Dual Die MOSFET output stage, resulting in much improved bass authority and extention; improved imaging and spacial 3D sound stage control. The enlarged power output stage on the Holton 500 Supreme allows 2 ohm loads to be driven to 750 watts RMS per channel allowing even the most demanding loudspeakers to be powered with ease. The Holton Five-Zero-Zero Supreme Will be exhibited at the Internationa HiFi Show next week on the 3rd-5th of November 2017 Holton Five-Zero-Zero Supreme Specifications 300 Watts RMS continuous sine wave into 8 Ω 500 Watts RMS continuous sine wave into 4 Ω 750 Watts RMS continuous sine wave into 2 Ω Biased into Class A/B Power Bandwidth 3.5hz to 250khz -3dB Dampening Factor At 100hz 8Ω = 1300 RCA Single ended Input impedance 20kΩ Differential Input Impedance = 40kΩ Single Ended Input Gain = 30.6dB Differential Input Gain = 33.8dB SNR -110dB THD-N = 0.005% @ 10 watts 8 Ohms Unconditionally Stable into any load from 2 ohm loads and up High powered Solid State output relays for silent turn on/off and loudspeaker protection Extra Heavy Duty Two ounce copper gold plated printed circuit boards Rugged Single Die Lateral MOSFET Output Stage Total of 300,000uf supply storage Almost no internal cabling; both channels are embedded into a single PCB Outside dimensions of case 400mm x 366mm x 182mm high including feet Weight 30kg
  5. Holton Audio Testimonials

    Holton Audio Testimonial#5 Holton Class A NXA50L Amplifier I have built two mono blocks. Each has a 600 VA encapsulated transformer, a RCRC filter with 0,5 and 0,25 ohms resistors and 600.000uF electrolytic capacitors, inrush current limiter, a mains DC-filter and loudspeaker protection. The bias is adjusted to 2,85 A the heatsinks are about 50-51 degrees Celsius (125 F) when warming up from about 22 degrees Celsius is complete. This should leave headroom for use even during a hot Danish summer. But a lot of cooling IS recommended and cooling can hardly be overdone. The sound is magnificent. No less. The soundstage is huge and very roomy, the tonal balance is very neutral. Details are abundant and very natural sounding. They let you hear all the detail you could possibly wish for, in a way that sounds utterly right. The details are there, you can clearly hear them, yet they do not seem exaggerated, on the contrary, they blend in in a very naturally sounding way. This is easily among the most detailed and transparent I have heard, yet totally without being too bright or too focused on the detail. They are equally good at making the tonal textures a joy to listen to. Piano music, for example sounds very natural, and all stages of the sound from the hammer hitting the string to the final reverberation in the room evolve smoothly, and, the recording permitting, this amp lets you know that this is happening in a room. Transients are delivered with power and attack. The bass is tight and well controlled. I thought I had a major low-frequency room resonance problem – and I probably have to some extent – but these amps have reduced this problem considerably, revealing what superb control in the low-end region can do to tighten up bass response. Dynamics is excellent, even at low volume I was often surprised at how much weight they can give to instruments demanding it, even at low listening levels. Best of all they are very musical: They let you connect directly with the music’s emotions – from sadness to joyful foot tapping. They are utterly pleasurable to listen to with all kinds of music and I am extremely happy with them. Ole Thomsen Denmark
  6. Here is a pair of Ex Nihilo mono blocs I am assembling for a customer in Victoria.
  7. Hi Guys The 501 mono block amplifier is now available for a further discount of $6190.00 including shipping.
  8. Awesme job Ozzie well done mate! Looking forward to seeing how it all comes together mounting up in the case.
  9. Holton One-Zero-Zero Power Amplifier Special!!

    Yes correct Guys, its a chassis change. The old case measured 300mm x 118mm x 215mm Deep The new case case measures 300mm x 170mm x 215 Deep which includes the mounting feet It's weight has gone up a bit as well; going from 8kg with the original chassis to exactly 10kg for the new unit. The new Integrated Amplifier will be accomodated in this chassis...
  10. Item:Holton One-Zero-Zero Power Amplifier Location:Launceston, TAS Price:$2490.00 - $2090.00 Including Shipping Item Condition: Brand New with 3 Year Warranty Payment Method:Direct Deposit, Credit Card, Cash Extra Info: I have a available one new Holton One-Zero-Zero power amplifier rated at 100 watts per channel. Power Output 2 x 100 watts into 8 Ohms and 2 x 160 Watts 4 Ohms Class A/B 2 Ohm permissible for short periods XLR balanced inputs with the option of RCA inputs. Great sounding circuit topology that Holton amplifiers are known for. 80,000uf of DC supply filtering in the standard model Bridgeable into a high power mono block amplifier. On board AC power controller with Inrush current limiting soft start. Lightning fast loudspeaker protection. Super quiet turn on and turn off. Precision full aluminum chassis with CNC milled AL front and back panels Dimensions: 300mm x 215mm x 170mm including feet Weight 10kg Net Pictures:
  11. Just in time for the International HiFi show in Melbourne. Here is the new look Holton Zero-Five-Zero 100W +100W power amplifier. Building off the Zero-Five-Zero plateform, this new amplifier features 50% higher case and heat sinks for increased efficiency and making room for the integrated SE version that will be released later this year.
  12. This one is a mono block amp so just one channel per case. Here are the specs. Just sold a pair of these Ex Nihilo amps to a customer in VIC. I will post some photos of it when I have completed the build, these ones have some nice updates on the cases. Specifications EX Nihilo Mono Bloc Amplifiers Power rating 275 W RMS into 8 Ohm 525 W RMS into 4 Ohm 900 W RMS into 2 Ohm Frequency response 1.5 Hz to 200 kHz -3 dB Signal to Noise Ratio -110 dB Unweighted Gain 26.8 dB Unbalanced Input 32.8 dB Balanced Input Input Impedance Single-ended Input: 20 kOhm Balanced Input: 40 kOhm Input sensitivity 2.0 V RMS Damping Factor 100 Hz 8 Ohm = 1300 Power Supply Transformer 2.5 kVA Custom designed encapsulated fully shielded 225,000 μF total filtering Connectors ETI Research, Neutrik, Schaffner and ESO Outside Dimensions W 355mm x H 220mm x D 420mm Weight 35 kg approx. per mono block
  13. Hi Niss_man The one that was at the show last year was this one. Cheers Anthony