The RMSMC5 Valvop

Shine a warm light on your performance

Classic optical compression with Roll Music’s transformer-coupled tube amplifier in a single, standard-compliant 500-series module.

At long last, all the warm sweet satisfaction of an optical compressor with a real transformer-coupled, high-voltage vacuum tube audio path in the convenient and cost-effective 500-series modular format.
You love the sound of the RMS5A7 Tubule tube mike preamp module, and now you can enjoy that same sonic bliss in a line-level compressor and the same form factor. The compression is all optical for a smooth compression that's ideal for both vocals and electric bass. (But don't let us stop you there!) The audio path uses the same all-tube amplifier circuit found in the Tubule.

The tube amplifier we designed for the RMS5A7 Tubule preamp module sounds great on a wide range of sources, so it made sense to lend that sound to our optical compressor module. The harmonic richness of the single-ended triode amplifier and transformer coupling perfectly compliment the smooth, musical compression of the Valvop. We’re not the first company to think tubes and optos are a great combination, but the Valvop is not another clone of the classic designs. This is all Roll Music: elegant simplicity, rugged construction, and innovative features. Our Program Dependent Release function brings smooth, musical compression to a new level of transparency. The soft bypass allows the Valvop’s tube and transformers to be used as a unity-gain line amp, great for lending a little color or solving a wide range of interfacing challenges like only good transformers can.

Our amplifier is not a wimpy starved-plate design, nor is it an op-amp based preamp with a tube stuck on top for marketing appeal. It's all tubes and iron, with sophisticated modern power management circuitry to generate the high-voltage plate supply and high-current heater supply to power the tube. Careful design of this high-efficiency power circuit allows the Valvop to work within the space and power consumption limitations of a single module.

The RMSMC5 Valvop is fully compatible, both electrically and mechanically, with any enclosure that complies with the standards for the 500-series format.

The RMSMC5 Valvop from Roll Music Systems is available from our global network of friendly, expert dealers.

Specifications

Frequency Response

+/-1dB, 10Hz-40kHz

Maximum Input Level

+28dBu rms

Maximum Output Level

+25dBu rms

Input Impedance

50kΩ balanced

Load Impedance
(Recommended )

Output Impedance

<300Ω balanced

>10kΩ balanced

Output Gain Range

-2 to +20dB
2dB steps

Threshold Control

“PDR” Switch

Program-Dependent Release

Variable, -30 to 0dB

Power Requirements

+/-16V @ 130mA

Vacuum Tube

ECC832
12DW7
7247

“Out” Switch

Soft Bypass
Unity Gain

Gain Reduction

0 to -30dB

Indicator

Proportional Brightness