Description

Radial ProRMP is a passive reamper that requires no power. The integrated transformer converts the signal from low to high impedance, eliminating any ground loops. Ideal for sending prerecorded tracks from your audio interface or DI box to your effects chain, then to the amplifier.

The Radial ProRMP is a passive reamper that requires no external power. The signal quality is provided by a transformer that converts the balanced line-level source into a Hi-Z output for your amplifier. At the same time, its special circuit eliminates annoying ground loops, which are often the cause of hum or other disturbances in our sound. With the Radial ProRMP, you can focus on the performance and then sculpt the sound later.

Plug and play and extremely easy to use:

    
• Connect the output of your audio interface to the input of the ProRMP
    
• Connect the output of the ProRMP to the amplifier or effects units
    
• Adjust the level using a flat-head screwdriver

Connections of the Radial ProRMP

    
• XLR INPUT: receives a balanced +4dB line-level signal from the audio interface
    
• LIFT: disconnects the ground at pin 3 of the XLR to eliminate hum caused by ground loops
    
• JACK OUTPUT: the ¼” Hi-Z jack output connects to the amplifier or effects chain/pedalboard
    
• LEVEL: allows you to set the output level

Features of the Radial ProRMP

    
• Play prerecorded tracks through amplifiers and pedals
    
• Output level control
    
• Transformer-isolated to eliminate ground loops
    
• Passive audio circuit, transformer-isolated
    
• Frequency response: 20Hz to 20KHz (+0/-1dB)
    
• Dynamic range: >137dB
    
• Gain: > -10dB
    
• Total Harmonic Distortion: 0.003%
    
• Phase deviation: 0.3° at 100 Hz; 5° at 20 Hz
    
• Input impedance: 1600 Ohm
    
• Output impedance: 1850 Ohm, balanced
    
• Equivalent input noise: > -98dBu
    
• Noise: -111dBu
    
• Maximum input: > +26dBu
    
• Input pad, 180° polarity reverse, Ground lift
    
• Input connectors: XLR
    
• Output connectors: 1/4" jack
    
• Construction: steel chassis
    
• Dimensions and weight: 84x127x48 mm; 720g
    
• Power: Passive, no power required

VIDEO: What is reamping and which Reamp to choose

Answers to frequently asked questions about the Radial ProRMP

What is the difference between Radial ProRMP and Radial X-Amp?

The ProRMP is passive, while the X-Amp is active. This means the ProRMP uses a transformer while the X-Amp uses an active buffer or internal amplifier to drive the signal. The advantage of having an active buffer is that you can drive more than one amplifier simultaneously. The advantage of a passive Reamper like the ProRMP is that it requires no power and costs less.

What is the difference between the Radial ProRMP and the new Reamp JCR?

Both units are similar in that they are passive. The difference lies in the quality of the transformer. The Reamp JCR uses the original ultra-low noise transformer designed by John Cuniberti. Both perform very well and are often compared. On the input of the Reamp JCR, the XLR features a latch.

What is the difference between the Radial JDI and the ProRMP?

The ProRMP's transformer is designed to accept a balanced +4dB input from an audio interface, while a DI box is designed to accept a very low -50dB signal from an instrument. The ProRMP is optimized for recording, while the JDI is optimized to work in reverse as a direct box.

Can I split the ProRMP signal to drive more than one amplifier?

Yes, but you might encounter ground loops. The Radial X-Amp, on the other hand, has two outputs, one of which is transformer-isolated to eliminate this problem. Whereas the Radial JD7 has 6 isolated outputs, allowing it to drive 6 amplifiers simultaneously.

Why do guitarists use Radial ProRMP on wireless systems?

Because the output of a wireless system is buffered and tends to sound artificial. The internal transformer of the Radial ProRMP naturally warms up the tone and sounds more like a guitar plugged directly into an amplifier.

Can I use the ProRMP as a direct box?

No. The transformer is not sensitive enough to act as a DI box.