AMPLIFICATORE VERO Royal Device - ENG

 

AMPLIFICATORE VERO the sole amplifier in the world using only transformers to VOLTAGE and power amplification

 

Hit Counter

dal 29-12-2009

 

 

 

AMPLIFICATORE VERO

(true amplifier)

the SOLE amplifier in the world that does not use active components to make voltage amplification

NO ACTIVE amplification made by tubes, transistors, mosfet or else

2 Stages - 3 trasformers - up to 170 or 200 watt channel

the technology that overpass any type of up to date amplifier.

The transformer is the unique PASSIVE element that can VOLTAGE AMPLIFY without the use of Feed Back from 20 to 100.000 Hz with no problems, the sole  LINEAR element between INPUT and OUTPUT available on the Earth

minimum power available: 55 watt/ch

 

 

AMPLIFICATORE VERO with "BLU POWER" power supply unit

AMPLIFICATORE VERO with BLU POWER model 120

TOP and sides with bi-sectioned cristall

 

 

 

 

 

a tecnology not available on the market even by means of thousands of dollars

 

 

 

AMPLIFICATORE VERO

the block diagram - SIMILAR BI_AMP on the output transformer - more than 50 impedance available for the maximum coupling toward the speaker

The frequency response of the interstage transformer of the AMPLIFICATORE VERO: the main responsible of all the VOLTAGE GAIN (21 dBs): 12 Hz-230 KHz (+/- 1 dB)

   

 

R.M.S. Power

MODEL 55: 55+55 Watts

MODEL 80: 70+70 Watts

MODEL 120: 120+120 Watts  

MODEL 200: 200+200 Watts (announced)

power available on any load chosen (see table for the relevant possibilities)

Power on half the impedance chosen from 30 to 50% more (example: setting at 8 ohm 55 watts/ch, loading 4 ohms amplifier still supply 80 watts/channel)

Available Impedances Impedance available on the 55 and 80 models

0,2 ohm

7,1 ohm

0,4 ohm

7,4 ohm

0,5 ohm

7,7 ohm

0,8 ohm

8,1 ohm

1 ohm

8,4 ohm

1,8 ohm

9,0 ohm

2,1 ohm

9,6 ohm

2,4 ohm

10,2 ohm

3,5 ohm

10,7 ohm

4,0 ohm

11,2 ohm

4,5 ohm

11,4 ohm

4,7 ohm

11,8 ohm

4,9 ohm

12,8 ohm

5,0 ohm

12,9 ohm

5,1 ohm

13,1 ohm

5,3 ohm

14,4 ohm

5,5 ohm

16,0 ohm

5,6 ohm

16,5 ohm

5,9 ohm

18,2 ohm

6,1 ohm

20,0 ohm

6,4 ohm

20,6 ohm

6,6 ohm

23,0 ohm

6,8 ohm

25,7 ohm

 

Example of impedance available (above 5 ohms) on the 120 model. Below 5 ohms other 20 impedances available.

 

5 ohm

10,7 ohm

5,2 ohm

11,3 ohm

5,3 ohm

12,0 ohm

5,8 ohm

12,7 ohm

6    ohm

13,5 ohm

6,2 ohm

14,3 ohm

6,5 ohm

16,0 ohm

6,6 ohm

 

6,9 ohm

 

7,0 ohm

 

7,4 ohm

 

7,5 ohm

 

7,9 ohm

 

8,0 ohm

 

8,3 ohm

 

8,5 ohm

 

8,6 ohm

 

9,0 ohm

 

9,3 ohm

 

9,6 ohm

 

9,9 ohm

 

10,2 ohm

 

10,6 ohm

 
 

Frequency response

Model 55:   

14 Hz - 70.000 Hz   -3 dB  at  2 watts/8ohm                

22 Hz - 65.000 Hz   -3 dB  at 90% of max power /8 ohm

Model 80:   

14 Hz - 70.000 Hz   -3 dB  at 2 watts/8ohm

24 Hz - 65.000 Hz   -3 dB  at 90% of max power /8 ohm

Model 120:

17 Hz 70.000 Hz   -3 dB at 2Watts/8ohm

20 Hz -  70.000 Hz   -3 dB at 90% of max power /8 ohm

Sensitivity

Model 55: 1 Vrms  - Model 80: 1,11 Vrms - Model 120: 1,25 Vrms

Input impedance 600 ohms on input transformer - Balanced or unbalanced.

S/N ratio

>= 125 dB

THD < 0,25 % up to 10 Watts

< 0,5 % up to 90% of max power /8 ohm .

Amplifier Dimensions                (L x D x H)

390 x 245 x 83 mm

BLU POWER  Dimensions                 (L x D x H) 140 x 240 x 80 mm

total weight

22 Kg

Chassis

MIRROR SHINING Stainless Steel frontal panel - Stainless Steel cabinet - Metalized varnish on BLU POWER power supply

NOTES

DUAL MONO internal assembly.  Cabling and assembling all hand made

GENERAL NOTES

14  pi-grec inductive cells on the supply. Current signal transformer feeding. Feeding cannot control the current flowing into the primary coil as consequence no local feedback applied. BLU POWER power supply reduces mains interference and 50 and 60 Hertz electromagnetic influences. HIGH END golden RCA connectors, GOLDEN Speaker Post, FULL Aluminum KNOB - DUAL MONO layout - BLU LEDs peak meter.  All the distorsion circuitry completely eliminated as differential, totem pole, current mirroring and no linearity devices as triodes, penthodes, MOSFET, FET etc used. Unique transistor supply current to the primary coils of thansformers. No microporcessor. Thermal switch. "SIMILAR BI-Amp" available on the output transformer. More than 50 impedances avaialble for best speaker dumping

CONNECTION as the AUDIO REPRODUCTION WORLD HAS TOUGHT YOU  UP TO DATE.

THIS COUPLING CREATES PROBLEMS

THE CONNECTION BETWEEN AN AMPLIFIER AND A SPEAKER MUST HAVE A MEAN FOR DUMPING REGULATION. THIS IS A TRANSFORMER THAT HAS SEVERAL POSSIBILITY TO CHOOSE FOR THE BEST COUPLING. ROYAL DEVICE OUTPUT TRANSFORMER HAS MORE THAN 50 POSSIBILITY FOR THE PURPOSE.

   

INTERCONNECTION EXAMPLE  for SIMILAR BI_AMPING with decoupling of tweeter and woofer using 2 separate coils in linear mode

INTERCONNECTION EXAMPLE  for SIMILAR BI_AMPING with decoupling of tweeter and woofer using 2 separate coils with a 0,6 dBs difference in amplitude                                             

 

 

SPEAKER SYSTEM  OVERDUMPED

Speaker impedance chosen on the output transformer is a bit lower than necessary of about 0,3 - 0,4 ohms below the correct one

 

SPEAKER SYSTEM CORRECTLY DUMPED

Speaker impedance chosen is the correct one

 

SPEAKER SYSTEM  UNDER DUMPED

Speaker impedance chosen on the output transformer is a bit higher than necessary of about 0,3 - 0,4 ohms

 

SPEAKER SYSTEM  UNDER DUMPED

Speaker impedance chosen on the output transformer is a bit too high  than necessary.  About 0,6 - 0,7 ohms over the correct one.