Old 10-18-2017, 06:43 PM   #1
pipelineaudio
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Join Date: Jan 2006
Location: Wickenburg, Arizona
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Default Low Output on iRig HD 2?

I have been testing a few of the iOS interfaces available. The specs for the iRig HD 2 show the maximum output at being 1.6vpp, which is roughly equivalent to a guitar output (my EMG 707’s put out about 1.5vpp if I hit an open A chord). If anything, these devices should be capable of MUCH more output, a regular audio interface will be on the order of +10 – +20dBu (1.6vpp is around -2.7dBu for reference). But I digress

I can’t get the actual output going through this device and through any software (even with everything bypassed) to get anywhere near this level. Here are the results of some testing I did, first setting guitar to DI to -15dBFS for reference levels

guitar into DI = -15dBFS

guitar into iRig HD 2 (not connected to lightning) into DI = -28dBFS Gain controls have no effect but Thru/FX switch mutes when set to FX

guitar into iRig HD 2 (connected to lightning) into DI = -15dBFS Thru/FX switch set to Thru. Gain controls have no effect

guitar into iRig HD 2 (connected to lightning) into DI Loudest with no distortion = -28dBFS Thru/FX switch set to FX. All Amplitube FX bypassed.

guitar into iRig HD 2 (connected to lightning) into DI Using Amplitube’s in/out controls to set for highest output, allowing distortion = -27dBFS
Thru/FX switch set to FX. All Amplitube FX bypassed.

I have exchanged some emails with IK’s tech support over this, and tested roughly the same on an iRig 2. Anyone know if the Sonicport has higher output levels?

Could there be some setting on the iPad telling it to drop the lightning connector’s audio 12dB?
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