This new AM RT-3 is designed as a no-compromise Flagship Preamplifier is an upgraded version of the already quite stunning AM-RT-2, its is very similar but with 2 separate power supplies and all Silver cabling

This is a minimalist in operation, but no effort spared, quite over the top, nothing to degrade the audio Preamp.  The power supply is a lot bigger than used in most large output amplifiers. The combined units weigh 56kG. 

This preamp sets a new standard in sound quality. Even superior to the already stunning RT-1 and RT-2 preamps.

The volume control system consists of a volume switch coupled to a volume transformer, that we produce and used for many years.

The benefit of this volume control is that the sonic background is very quiet and natural with a detail rich retrieval and a rich musicality that will clearly reveal every note of any piece of music.

We use a Single Ended design which is more natural sounding and dynamic than Balanced designs employed mainly for the studio environment.

The R-T3 3 box preamp is a dual mono design, from the transformers, power supply to the voltage regulation, all completely separated to avoid noise and cross talk. We use a large number of high value U-Cap copper foil capacitors, which were carefully chosen for their naturally detailed sound. The output transformers bandwidth will extend from15 HZ to 120KHZ

The unique design of our new tube preamplifier named "Magnetic AM R-T1" can be implied from the prefix: "magnetic", which indicates its direct origin from the AM magnetic passive preamp. Not only does AM R-T3 utilise transformers for volume attenuation, it also employs another two transformers for the signal output and two more for power supplies.

The remarkable level of performance has been achieved with an all new audio and power supply circuit design. This new audio circuit is all tube, Class-A, with zero feedback, utilising a total of four long-life tubes (2 x 6H30 as the drivers and 2 x 6922 as the amplifiers); and furthermore, it is a true dual mono circuit design in both the input and output stages, with the support of two volume control transformers.

The Magnetic R-T3 is a direct upgrade from the Audio Music reference version of the magnetic passive preamp, which already delivers an exceptional performance over other similarly employed designs, by using both tube amplifiers and output transformers. One great advantage of this magnetic feature is that it is capable of optimally matching any power amplifier and interconnects, while accepting inputs from any sources of various impedance levels, with the least possible interference to the signal.

The 2 box power supply in the R-T3 is also dual mono. The main power transformer, which is used to power the audio circuit, and Mosfets, that are used for both the voltage stabilisation and for a constant current supply. This enhances the reliability, and makes the tube amplification as linear as possible.

With its great build quality, audiophile grade components, versatility and the ability to musically transform any system, not only does the AM R-TI deliver striking clarity and detail that presents instrumental timbres and textures in an amazingly lifelike way, it also represents great value, with great reliability and stunning looks.


* Virtually all wiring is gold plated silver wire.
* 2 transformers for volume attenuation with 33 steps.
* Transformer output.
* Independent regulated power supply.
* The left and right channels are a completely independent design.
* Pure tube, Class-A, with a zero feedback audio circuit. 
* Versatility to match all kinds of amplifier and interconnects, based on a fully magnetic or transformers implemented design.
* MOSFETS for voltage stabilisation and constant current supply.
* U-cap capacitor in signal path.
* Detachable IEC power cord. High quality gold-plated AM custom binding posts and RCA jacks. 
* A fully machined aluminium alloy chassis and exceptional build quality.


Tube complement: 2x 6H30 as the drivers, 2x 6922 as the amplifiers 
Frequency response; 20 Hz ~ 100KHz 
Input Impedance: 47k ohms variable depending on the source
Volume control: 33-position volume control
Output Impedance: 600 ohms . RCA output & BAL output.
Input selections: 3 pairs RCA single-ended ; 3 pairs balanced / XLR
Gain: Input 0.5V output: 2.5V
S / N:  > 110dB
Distortion rate: under 0.5% / 5V
Power consumption: 45 watts
Dimensions: 380W x340D x165H (mm)
Weight: 58 Kg shipping weight