Q: What is a 500 series module?

A: A 500 series module is a standardized format for modular audio processors like preamps, EQs, and compressors. They require a compatible 500 series rack or 'lunchbox' which provides power and I/O.

Q: Do I need a separate power supply for the MR3eq?

A: No, the MR3eq draws its power from the 500 series chassis it is installed in. You must have a compatible chassis to use this module.

Q: Is this a mono or stereo EQ?

A: The Harrison MR3eq is a single-channel, mono equalizer. For stereo operation, you would need to purchase two units and match the settings manually.

Q: What does 'Proportional Q' mean?

A: Proportional Q means the bandwidth of the EQ curve becomes narrower as you increase the boost or cut. This makes it very musical, allowing for broad, gentle shaping at low gain and more precise, surgical adjustments at higher gain settings, all without a dedicated Q knob.

Q: How is this different from the Harrison 32C EQ?

A: The MR3eq is based on the EQ from the Harrison MR3 console (from 1981), which is a 3-band design. The famous 32C EQ is a 4-band design from an earlier console. Both have the signature Harrison sound but with different features and workflows.

Q: Can I use the MR3eq for tracking vocals?

A: Absolutely. It's excellent for tracking. You can use the HPF to cut out low-end rumble and the EQ bands to add clarity, presence, or body to a vocal right at the recording stage.

Q: Is this EQ good for mastering?

A: While it can be used for broad tonal shaping on a master bus, the MR3eq is primarily designed as a tracking and mixing EQ. Mastering EQs typically have detented (stepped) controls for precise recall, which the MR3eq does not.

Q: What kind of music genres is this EQ best for?

A: Its musical character makes it suitable for nearly any genre, from Pop and Rock to R&B and Acoustic music. It excels where a smooth, analogue, and punchy sound is desired.

Q: How do the shelf and bell modes differ?

A: In 'shelf' mode, the EQ boosts or cuts all frequencies above (high band) or below (low band) the selected frequency. In 'bell' mode, it creates a bell-shaped curve that boosts or cuts a range of frequencies around a central point.

Q: What is the warranty and service process in India?

A: As an authorized dealer, we facilitate the official Harrison Audio warranty in India. In case of any issues, you can contact us directly for service and support.

Q: Does this module add a lot of noise?

A: The MR3eq is a high-performance analogue unit designed with modern components to have a very low noise floor, consistent with professional studio equipment standards.

Q: What is the purpose of the resonant peak on the high-pass filter?

A: The slight resonant peak at the corner frequency of the HPF adds a touch of characterful low-mid punch just before the frequency roll-off. This can help retain weight and presence in a sound even while cleaning up the sub-bass.

Q: Can I bypass the EQ section but keep the filter engaged?

A: Yes. The EQ and the High-Pass Filter have separate 'In' (bypass) switches, so you can use the HPF on its own to clean up a signal without engaging the three main EQ bands.

Q: Is it easy to recall settings?

A: The MR3eq uses continuously variable potentiometers without steps (detents). While this allows for very fine adjustments, recall requires taking photos or detailed notes of the knob positions.

Q: How does this compare to an EQ plugin?

A: While plugins offer convenience, the MR3eq provides genuine analogue circuitry. This results in a unique, non-linear character and musical saturation that is difficult to perfectly replicate with software. It also offers a hands-on, tactile workflow.