PhazeQ - Audio Equipment Radial Engineering - Free user manual and instructions
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| Product Type | Phase Adjuster / Polarity Inverter |
| Brand | Radial Engineering |
| Model | PhazeQ |
| Category | Audio Equipment |
| Channels | 2 independent channels |
| Phase Shift Range | Variable 0° to 180° |
| Polarity Reverse | Toggle switch for 180° inversion |
| Frequency Response | 20 Hz – 20 kHz (±0.5 dB) |
| Input Connectors | 2 x balanced XLR |
| Output Connectors | 2 x balanced XLR |
| Input Impedance | 10 kΩ |
| Output Impedance | 150 Ω |
| Audio Level | Line level, +4 dBu nominal |
| Power Supply | 15V DC external adapter |
| Dimensions (W x H x D) | 9.5" x 1.75" x 6" (24.1 x 4.4 x 15.2 cm) |
| Weight | 1.1 kg (2.4 lbs) |
| Construction | Steel chassis |
| Mounting | Half-rack, optional rack kit |
| Cleaning | Wipe with a dry cloth |
| Safety Notice | Do not expose to moisture or operate with covers removed |
| Repairability | No user-serviceable parts; contact Radial Engineering |
Frequently Asked Questions - PhazeQ Radial Engineering
What is the primary purpose of the Radial PhazeQ?
The PhazeQ is designed to correct phase alignment between loudspeakers, such as subwoofers and main PA cabinets, reducing comb filtering and improving low-frequency response.
How does the PhazeQ adjust phase?
It provides a continuously variable 0° to 180° phase shift for each channel, plus a polarity reversal switch to instantly invert the signal by 180°, giving you precise control over speaker timing.
Can the PhazeQ be used with a single channel?
Yes. Although it is a stereo unit, each channel is independent, so you can use one channel to align a single loudspeaker while keeping the other channel separate.
What type of power supply does the PhazeQ require?
The PhazeQ uses an external 15V DC power adapter (included) to power its active circuitry. Always use the supplied adapter to ensure proper voltage and current.
How do I connect the PhazeQ between a mixer and an amplifier?
Connect the balanced output from your mixer to the XLR inputs of the PhazeQ, then run an XLR cable from the PhazeQ outputs to the amplifier inputs. This allows you to trim phase and polarity before the signal reaches the speakers.
What is the difference between phase and polarity?
Polarity is a fixed 180° reversal that is uniform at all frequencies. Phase is frequency-dependent and can vary with time. The PhazeQ offers both: a polarity switch for quick inversion and a phase knob for fine adjustments.
Can the PhazeQ be used in a recording studio?
Absolutely. It is useful for aligning multi-mic setups, such as miking a guitar cabinet or drum overheads, by compensating for slight physical distance differences between microphones.
Is the PhazeQ suitable for instrument-level signals?
The PhazeQ is designed for professional line level signals. If you need to use it with an instrument-level input, place it after a DI box or preamp to bring the signal up to line level.
How do I set the optimal phase for subwoofer/main speaker alignment?
Start with the polarity switch in either position and slowly rotate the phase knob while listening to a low-frequency source. The correct setting typically results in more bass output and a solid center image.
Can I rack-mount the PhazeQ?
Yes, the half-rack chassis can be mounted in a standard 19-inch rack using an optional Radial rack kit, allowing two half-rack units to occupy a single rack space.
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USER MANUAL PhazeQ Radial Engineering
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Product information
Brand : Radial Engineering
Model : PhazeQ
Category : Audio Equipment