MK3 UPDATES
- Difference between HE-1 MK2 and HE-1 MK3 is the chassis and display changes. No sound quality improvements.
- It has two gain modes for user select to match with the different gain power amps.
- It has double volume control can match well with the different output level sources.
- The new design apply the same board of Left and Right channels that make the design exact same,that we can measure and match the boards for assemble in the one unit to ensure the consistency.
The HE-1 MK3is a fully balanced Class A preamplifier with a built in regenerative power supply. Rende perfetta la nuova potenza e poi la fornisce al preamplificatore. Utilizza tutti gli stadi analogici discreti senza amplificatori OP o tappi di accoppiamento nel percorso del segnale. Ha uno stadio di uscita di corrente analogica ACSS a feedback zero. Il preamplificatore utilizza tre trasformatori R-core (in totale 260 W) e vengono utilizzati oltre 100.000 condensatori NOVER di grado audio per garantire un’erogazione di potenza ampia e regolare. ha alimentatori separati in classe A sia per il rigeneratore di potenza che per il preamplificatore completamente discreto che lo segue. The HE-1 MK3 uses a four-channel 100 step digitally controlled relay-based volume control to yield superb channel balance. Ciò migliora notevolmente l’imaging stereo e migliora la qualità complessiva del suono. È dotato di 5 ingressi analogici. Ci sono 2 RCA, 2 XLR e un singolo ingresso ACSS. Hai anche un’uscita ACSS disponibile per il tuo amplificatore e un ingresso ACSS, RCA o XLR. Il preamplificatore può pilotare 3 amplificatori di potenza contemporaneamente
INGRESSO ANALOGICO
- 1. XLR balanced
- 2. RCA single ended
- 3. XLR balanced
- 4. RCA single ended
- 5. ACSS balanced (mini xlr)
USCITA ANALOGICA
- Balanced (XLR)
- Balanced ACSS (4-Pin XLR)
- Single ended (RCA / Cinch)
Improvement may result in changesin specifications and design without notice. |
||
S/N Ratio | > 110dB | |
THD | < 0.0005 % | |
THD+N | < 0.0025% | |
Banda di frequenza (ingresso XLR) | 20Hz – 100KHz (<4 dB) | |
Caratteristica del volume |
100 passi Caratteristiche del volume esponenziale della cena | |
Guadagnare |
Alto guadagno: +16dB Basso guadagno : +6dB |
|
Livello di uscita (max) | 9.5V @ RCA 19V @ XLR 6mA @ ACSS |
|
Impedenza di uscita | 10 ohm @ XLR >10m ohm @ ACSS |
|
Impedenza di ingresso |
94K ohm @ XLR < 5 ohm @ ACSS |
|
Canali incrociati |
< -130DB | |
Squilibrio dei canali |
< 0,01 DB | |
Requisiti di alimentazione | 1 Versione 100-120V AC 50/60 Hz 2 Versione 220-240V AC 50/60 Hz |
|
Power Consumption | 50W Classe A @230V o 120V | |
Potenza del trasformatore | 260W (3 trasformatori R-Core) | |
Package Weight | Circa 22 kg |
|
Dimensions |
L430 X L485 X H123 (mm, Completamente alluminio ) | |
Accessories | 1x Cavo di alimentazione1x Telecomando in alluminio |
HIGH PRECISION VOLUME CONTROL
Volume control consist of relay-controlled attenuators. Fully-independent, fully-balanced stereo volume controls. The volume controls feature consist of high-precision 0.05% tolerance film resistors and golden contact relays. Buffered inputs and outputs.There 4 channels volume boards are built in the unit to achieve ultimate balanced volume control. They are controlled by a digital signal controlling the high quality relays switching the precision resistors in analog area.
Quality of volume control is very important in balanced applications . It have to effectuate the four channels to work as synchronous as possible to keep the balanced signal in perfect shape. In traditional volume controls the balanced output will introduce distortion which will negatively influence sound quality and performance and might even get worse than a single ended setup and waste the advantages of balanced designed solution.
REGENERATIVE POWER SUPPLY
An integrated regenerative power supply is a proprietary electric generator built into the unit to avoid any noise from main power and deliver ultra-low noise and clean AC wave to feed the preampIt will regenerate the main power and block noise from the power line, this way the preamp is able to reproduce the most neutral and analog sound you can imagine.First a transformer converts main voltage. DC conversion is done by class A PSUs power supplies.A discrete balanced regenerative wave generator produces the new ultra-low noise wave form at 400Hz. The 400Hz frequency was chosen because they have better efficiency compared to traditional 50Hz and at this frequency, 400Hz, it will boost the sound to reproduce real and pleasant analog sound.
The balanced gain amps with powerful output stages are driving the regenerative transformers to produce the extreme clean AC power. The extreme regenerated clean AC power is send to separate class A PSUs power supplies for both left and right channel.The discrete class-A DC power supply with high input impedance will avoid any noise and allow the amplifier stages to have low output impedance at very high speed and linear at frequency spectrum.
Recensioni
Ancora non ci sono recensioni.