SPL Volume2 Stereo Volume Controller

SPL Volume2: A high-quality stereo volume controller

SPL’s Volume 2 offers a less expensive alternative to the company’s more advanced monitoring controllers. This small guy is devoted to audio-level management. It contains active circuitry to avoid the inherent limitations of passive operation, such as impedance change and a decrease in frequency-response linearity. In the studio, place Volume 2 between your playback machine’s analog outputs and your monitoring system for a direct, audiophile-quality playback path. Another excellent application for this handy gadget is in your home audio system. Regardless of how you utilize SPL Volume 2, you will receive the purest monitor signal available.

Analogue level control in the studio

If you use a DAW,  has found that analog level control may be really useful. Most D/A converters are ineffective here, resulting in fluctuating signal levels at the converter outputs. What was the result? A monitor signal has a decreased bit rate, resulting in a loss of audio quality. SPL Volume 2 to the rescue! For an audiophile-grade stereo playback chain, connect Volume2 to your playback machine’s analog outputs and your active speaker system (or power amp and speakers). This solution requires minimal financial and electronic effort while providing the most direct playback channel conceivable.

Ideal for your home audio system, too

Another excellent application for Volume 2 is in your home audio system. Your AV receiver has VCA and DAC components, which tend to generate distortions, and your signal is frequently routed via extra converters for volume control. This is especially true for SACD or DVD-A sources, where only direct, high-quality analog control of the source output ensures uninterrupted playing of the original material.

SPL Volume2 Stereo Volume Controller’s Features:

The instrumentation amplifier is transformerless and electronically balanced (differential).

•  Inputs and outputs
•  Nominal input level: +4dBu.
•  Input impedance = 22kOhm.
• output Impedance: 600 Ohm.
•  Maximum input level: +20dBu.
•  Volume Gain: -4dB

 Measured data:

•  Frequency range: 10Hz to 100kHz (100kHz = -3dB).
•  CMRR: 60dBu at 1kHz.
•  THD: & N (at +15dBu input level) -100dBu
•  S/N A weighted: -102dBu.
• Crosstalk L/R (at 1kHz): -80dBu.
• Dynamic range: 120 decibels.

 Power supply:

•  Toroidal transformer: 3.5 VA.
•  Fuse: 250mA/230V and 500mA/115V.
• Voltage Selector: 230/50Hz, 115V/60Hz.
• · Power consumption: around 15W.

 Dimensions and weight:

•  Housing dimensions: 8.5″ x 3.1″ x 8.8″.
•  Depth with potentiometer and sockets: 9.8″
•  Weight: 3.52 pounds.