It is possible to connect a line output to JAM, however the output must be unbalanced. JAMʼs input can be driven up to 14dBu unbalanced and it is recommended that the output device be set to a -10dBv reference output level. If the output level is +4dB referenced, it is recommended to be cautious with the amount of output gain being sent to JAM. (6-10 dB below maximum output level). Examples of line output sources may be, mic preamps, mixing consoles, outboard signal processing equipment, etc.
This firmware update is intended for JAM users who require 48 kHz sampling rate functionality or are experiencing connection issues on an iPad 2 after updating to iOS 5. This update MUST be installed from a Mac.
To play along through JAM with your music on iPad/iPhone, you’ll need to have the latest versions of GarageBand and iOS software installed. Select the desired song and begin playback BEFORE opening GarageBand.
A Line-matching Transformer is an adapter with a female XLR connector on one end and a male 1/4” connector on the other. This transformer converts the low-impedance signal of a microphone to high-impedance for connecting to a device like JAM. In this process, the transformer is providing additional gain for optimal signal level.
Also Called: Impedance Matcher, Impedance Transformer