What causes undesirable echo or phasing with Universal Audio Accessories?
Undesirable echo or phasing with your Universal Audio Accessories can occur if input monitoring is enabled in both Console and your DAW. Confirm input monitoring is not enabled in both Console and DAW.
What to do if my Universal Audio Recording Equipment won’t power on?
If the unit doesn’t power on: * Confirm the power supply connections at the power supply input and the back of the unit. * Confirm that the power switch is not in the "OFF" position. * Confirm that AC power is available at the wall socket by plugging in a different device.
Why is there static or white noise when nothing is plugged into my Universal Audio Recording Equipment?
If you hear static or white noise when nothing is plugged in: * Mute or lower the preamp gain to minimum on all unused preamp channels. Mic preamps can emit noise even when nothing is plugged in. * Some UAD plug-ins model the noise characteristics of the original equipment; defeat the noise model in the UAD plug-in GUI or mute the channel containing the plug-in to temporarily mute the noise.
What to do if my Universal Audio Recording Equipment is behaving unexpectedly?
As a last resort, perform a hardware reset on the unit by following these steps: 1. Power off Apollo. 2. Press and hold the PREAMP, LOW CUT, and POLARITY controls. 3. Power on Apollo while continuing to hold all three controls. 4. After all front panel LEDs flash rapidly (after several seconds), release the controls.
Why is there no monitor output from my Universal Audio Recording Equipment?
If there is no monitor output: * Confirm the connections, power, and volume of the monitoring system. * Confirm that the monitor knob is turned up. * Confirm that the monitor outputs are not muted (push the monitor knob). * Confirm that the monitor LEDs are active (check signal flows).
Why can't I adjust input channels 1-4 on my Universal Audio Accessories?
You can only adjust input channels 1-4 on your Universal Audio Accessories because signal levels for all other inputs, including digital inputs, are adjusted at the device connected to those inputs.
What to do if I can't hear anything from channels 1-4 on my Universal Audio Accessories?
If you cannot hear audio from channels 1-4 on your Universal Audio Accessories, make sure the preamp gain is turned up for the affected channel(s).
What to do if I can't hear anything from my mic or line inputs on Universal Audio Accessories?
If you're not getting any sound from the mic or line inputs on your Universal Audio Accessories, check these: * Confirm the mic/line switch setting is correct for the channel you are using. * Ensure that nothing is plugged into the channel's Hi-Z input.
Why preamp controls have no effect on channel of my Universal Audio Recording Equipment?
If the preamp controls have no effect on the channel: * Confirm that the desired channel is selected for control (push the PREAMP knob to select). * Note that preamp controls are available for channels 1 – 4 only.
What to do if I can’t hear mic input(s) on my Universal Audio Recording Equipment?
If you can’t hear the mic inputs, confirm that +48V phantom power is on (if required by the microphone).
General| Type | Audio Interface |
|---|---|
| Bit Depth | 24-bit |
| Connectivity | Thunderbolt |
| Input Channels | Varies by model |
| Output Channels | Varies by model |
| Compatibility | Mac, Windows |
| Sample Rate | Up to 192 kHz |
Describes analog inputs/outputs, monitor outputs, and digital interfaces like ADAT and S/PDIF.
Covers Word Clock I/O, termination, and host connections via FireWire and Thunderbolt.
Provides simplified steps for installing Apollo hardware and UAD software.
Outlines the essential steps for registering and authorizing the Apollo unit online.
Provides installation advice and a basic setup diagram for recording and mixing.
Illustrates typical and complex interconnection scenarios using Apollo with other audio gear.
Explains the importance of clock sync for digital conversion and transmission, master/slave concepts.
Details I/O complement, sample rates, analog and digital interface specifications.
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