Data specifications

Tube complement two 6H30 or 6H6N as the drivers, two 6922 as the amplifiers
Frequence response 20 Hz ~ 100KHz
Input Impedance 47k ohms variable depending on the source
Volume control 33-speed 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 > 100dB
Distortion rate

under  0.5% / 5V

Power consumption

45 watts

Dimensions (W * D * H) 380W*340D*110H*(mm) x2
Weight 38 Kg shipping weight


The volume control system consists of a volume switch coupled to a volume transformer, that we have produced 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-T2 preamp is a dual mono design, from the transformers and power supply, to the voltage regulation, all completely separated to avoid noise and crosstalk. We use a large number of high value U-Cap copper foil capacitors, 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-T2" can be implied from the prefix: Magnetic, indicating its direct origin from the AM magnetic passive preamp. Not only does the AM R-T2 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 6H30 as the amplifiers). 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-T2 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 power supply in the R-T2 is also dual mono. The main power transformer, 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 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-T2 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.



Feature summary of the R-T2 preamplifier

Technical details about magnetic AM R-T2

  • 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 stabilization 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.TEFLON insulated wireand Japanese made POCC rectangular solid core copper wire all the way.
  • A fully machined aluminum alloy chassis and exceptional build quality.


Contact your AM dealer near to you to schedule an auditon, or contact us directly for any enquiry

Download:Audio Music RT-2 Manual

R-T1 review in 6moons
R-T1 review in Mono TEREO
R-T1 review in hifi+

Copy right® 2002 AM HiFi Technology LLC.