Power Output

32 Watts into 16, 8, or 4 Ohms.  

Rated Output Power

minimum continuous sine-wave power, 
at 1 KHz with no more than:

0.3% THD (FTC) @ rated line voltage
3% THD (FTC) @ rated line voltage

0.3% THD (FTC) @ rated line voltage
3% THD (FTC) @ rated line voltage

0.3% THD (FTC) @ rated line voltage
3% THD (FTC) @ rated line voltage

 

1 Watt into 16 Ohms. 
30 Watts into 16 Ohms.

1 Watt into 8 Ohms. 
30 Watts into 8 Ohms.

1 Watt into 4 Ohms. 
30 Watts into 4 Ohms.

Rated Output Voltage

with continuous sine waves, 
at 1 KHz  @ rated line voltage:

• 30.98 Volts peak into 16 Ohms, corresponding to 60 Watts peak.

• 21.91 Volts peak into 8 Ohms, corresponding to 60 Watts peak.

• 15.49 Volts peak into 4 Ohms, corresponding to 60 Watts peak.

Rated Output Current

with continuous sine waves, 
at 1 KHz z @ rated line voltage:

• 1.94 Amps peak into 16 Ohms, corresponding to 60 Watts peak.

• 2.74 Amps peak into 8 Ohms, corresponding to 60 Watts peak.

• 3.87 Amps peak into 4 Ohms, corresponding to 60 Watts peak.

Maximum Output Power

with continuous sine-wave power,
at 1 KHz, with no more than 5%
THD (FTC) @ rated line voltage:

• 37 Watts into 16 Ohms. 

• 37 Watts into 8 Ohms.

• 37 Watts into 4 Ohms. 

Maximum Output Voltage

with continuous sine waves,
at 1KHz @ rated line voltage:

 

• 34.41 Volts peak into 16 Ohms, corresponding to 74 Watts peak.

• 24.33 Volts peak into 8 Ohms, corresponding to 74 Watts peak.

• 17.2 Volts peak into 4 Ohms, corresponding to 74 Watts peak.

Maximum Output Current

with continuous sine waves,
at 1KHz @ rated line voltage:

• 2.15 Amps peak into 16 Ohms, corresponding to 74 Watts peak.

• 3.04 Amps peak into 8 Ohms, corresponding to 74 Watts peak.

• 4.3 Amps peak into 4 Ohms, corresponding to 74 Watts peak.

Small Signal Frequency Response

at 1 Watt into 16 Ohms @ rated line voltage:

(0, -3dB) 8.5 Hz - 32 KHz.

Frequency Response

at 30 Watt into 16 Ohms @ rated line voltage:

(0, -1.5dB) 20 Hz - 20 KHz.

Slew Rate

Vout=61.96 Volts peak-to-peak of
square-wave signal into 16 Ohms,
F=10KHz @ rated line voltage:

5 Volts per microsecond

Rise Time

Vout=61.96 Volts peak-to-peak of
square-wave signal into 16 Ohms,
F=10KHz @ rated line voltage:

10 microseconds

Fall Time

Vout=61.96 Volts peak-to-peak of
square-wave signal into 16 Ohms,
F=10KHz @ rated line voltage:

10 microseconds

Noise

Signal/Noise ratio ref. 4 Volts RMS
into 16 Ohms (1 Watt):

22 Hz – 22 KHz
A weighted

Signal/Noise ratio ref. 21.91 Volts RMS
into 16 Ohms (30 Watts):

22 Hz – 22 KHz
A weighted

typically 86.5 dB.
typically 92.5 dB.

 

typically 100.5 dB.
typically 106.5 dB.

IM Distortion 
(60Hz:7KHz  4:1) SMPTE:

from 1-30 Watts into 16 Ohms 
@ rated line voltage

from 1-30 Watts into 8 Ohms
@ rated line voltage

from 1-30 Watts into 4 Ohms
@ rated line voltage

no more than 10%

no more than 10%

no more than 10%

Voltage Gain

25.78 + 2% or 28.22 + 0.2dB into 16 Ohms.

18.26 + 2% or 25.2 + 0.2dB into 8 Ohms.

12.89 + 2% or 22.2 + 0.2dB into 4 Ohms.  

Inputs

Pseudo-balanced, non-inverting








Single-ended, non-inverting

3-pin XLR connector.  

Pin assignment:

pin 1 = signal ground;
pin 2 = non-inverting input;
pin 3 = signal ground.

gold plated RCA connector (connected in parallel with pin 2, non-inverting input, of XLR connector).

ONLY ONE OF THESE INPUTS SHOULD BE CONNECTED TO A PREAMP.

Input Sensitivity

             
0.85 Volts RMS ± 2% for 30 Watts into 
16, 8, and 4 Ohms.  

Input Impedance

 
41 KOhms shunted by 470pF.  

Outputs

 
Eight gold- plated binding posts.

Operating Temperature

-4 to +104 degrees Fahrenheit 
(-20 to +40 degrees Celsius) ambient.

Grounding

Grounding (earthing) post and chassis connected to mains earthing.

Power Supply

nominal line voltage

Input voltage range

100-240 Volts, 50/60Hz.  

±10%.

Two power transformers, one filament transformer, six filter
 chokes, seven separate power supplies, six rectifier tubes.

AC voltage intensively filtered by special RFI power line filter.

Power Supply Energy Storage

Approximately 265 joules.

Front/Rear Panel Controls and
Chassis Connectors & Controls

ML3

Front Panel Controls 

LED control.

Chassis Connectors and Controls

 

MULTI-TURN TRIMMING POTENTIOMETER for setting the nominal value of plate current  of the output tube V1

Set of testpoints for measuring the value of plate current of the output tube by using an external voltmeter.

Plate FUSE for the output tube, along with a corresponding fuse-folder.

LOCAL NFB ON-OFF switch, allowing to introduce small
amounts of local feedback in the output stage.

NFB1 - NFB2 switch, allowing to vary the amounts of local feedback (2.4dB and 1.2dB, respectively).

One input RCA connector, gold plated (located on the left side of the chassis).

One input XLR connector, gold plated (located on the left side of the chassis).

Rear Panel Connectors and Controls

Eight gold- plated BINDING POSTS

PANEL RECEPTACLE, MALE for connecting the power supply cable.

ML3-PS

Front Panel Controls 

LED control.

 
Chassis Connectors and Controls

Six RECTIFIER TUBES (V101 – V106).

Rear Panel Connectors and Controls

POWER SWITCH.

AC POWER INLET.

AC MAINS FUSE, along with a corresponding fuse-holder.

FRONT-END PLATE FUSE, along with a corresponding fuse-holder.

PANEL RECEPTACLE, FEMALE, for connecting the power supply cable.

Two DC POWER JACKS (central pin 2mm dia.) for connecting remote link cables.

GROUNDING (EARTHING) POST (gold plated).

Features

AC voltage selector

100/120/220/230/240 Volts, internally switchable.

Ultra low-noise power and filament transformers

Custom-made torodial power transformers have no mechanical contact with either the transformer covers or the chasses, as transformers are suspended in a special encapsulant that almost completely absorbs even the residual mechanical vibrations. This plays a significant role in assuring the absolutely unique clarity and micro-resolution during sound reproduction.

Wide-band output transformer

Custom-made output transformer especially designed for handling high-plate voltage power triodes and assuring reproduction of a full spectrum of audio frequencies at any level of output power up to the maximum specified.

Remote control

Power on/off.

Available remote link cable coordinates the remote functions of two or more amplifiers.

Safety/Protection

"Soft-start" circuit protects power supply components from large in-rush currents when the amplifier is turned on.

Protection against possible damages from high voltage transients on AC power line.

Unique delay time and electronic protection circuits secure the delay of approximately 45 seconds before connecting a speaker to the amplifier's output upon its turn-on and also an instant disconnecting of a speaker upon the amplifier's turn-off.  That  excludes the unpleasant thumps or transients in the system.

Thermal resetting fuse controls internal temperature of the power transformer.

Threshold: 248 degrees Fahrenheit
(120 degrees Celcius)

Fuses:

6.25 Amps slo-blo for 100/120 Volts            (ML3-PS),

3 Amps slo-blo for 220/230/240 Volts          (ML3-PS),

0.125 Amp slo-blo for on/off and
         remote control circuitry,
         internally mounted                                (ML3-PS),

0.125 Amp slo-blo Front-End Plate fuse       (ML3-PS),

0.5 Amp fast-acting Plate fuse for the
      output tube                                                  (ML3).

General

Power Consumption

Typically 400 Watts @ rated output @ 16 (8,4) Ohms and 
at idle.

Burn-in Time at Factory:

Minimum 72 hours.

Recommended Burn-in Time in End-user's System:

Minimum 100 hours.

Warm-up time:

Minimum 25 minutes.

Dimensions
                                           ML3




                                           ML3-PS

8.25 inches (21cm) high x 16 inches (40.64cm) wide x 
20.375 inches (51.75cm) deep
[add 1.3125 inches (3.3cm) of depth for handles located on rear panel]

8.25 inches (21cm) high x 16 inches (40.64cm) wide x 
20.375 inches (51.75cm) deep
[add 1.3125 inches (3.3cm) of depth for handles located on rear panel]

Unit weight
                                           ML3

                                           ML3-PS

79 Lbs (35.9 Kg).  

80.2 Lbs (36.41 Kg).

Shipping weight
                                           ML3

                                           ML3-PS

99 Lbs (44.95 Kg).

100.2 Lbs (45.5 Kg).  

Tube Complement
                                           ML3













                                           ML3-PS

 

V101 - 12AX7/ECC83, first amplification stage; 

V102, V103, V104, V105 -
            -  6N30P-DR / 6H30П-ДР (original),
               second amplification stage;
NOTE: we recommend replacing 6N30P-DR tubes about once every 1.5-2 years to maintain the best performance of the amp

V1 – GM-70, output stage.
NOTE: we recommend replacing GM-70 tube about once every 1-1.5 years to maintain the best performance of the amp

V101, V102, V103, V104, V105, V106  -
           - 12AX3, rectifier tubes