Shure PSM1000 (P10R+)

Compare the two signals entering the transmitter first, then the receiver mode and balance. Similar indicators do not prove that the whole chain is balanced. Compensating with balance before locating the difference can hide a routing, cable or monitoring problem.

In Audio → MODE, STEREO keeps left and right separate. MIXMODE combines both inputs in both earphones; BAL MIX controls their proportion. To compare a stereo mix, check STEREO and note BAL ST. A MixMode setting can change what you hear even when the transmitted signals have not changed.

1. Record transmitter model and band, firmware on both units, console output, input and mode. Turn down receiver volume before connecting or changing earphones, then raise it gradually for listening, as Shure specifies during setup.
2. Outside the live program, feed the same test signal to both console outputs with identical level and processing. Check those outputs before the wireless link. If they already differ, inspect console sends, pan, patch and cabling before changing the receiver.
3. If the transmitter is a P10T, also check its transmission mode. The manual specifies Audio → Mono for a mono source; this comparison needs two independent channels. Check Util → Audio → INPUT. Select sensitivity for the source: +4 dBu and −10 dBV are not universal settings. Adjust input so the upper two yellow LEDs flicker at average level and the lower LEDs remain on. If the red clip LED lights, correct the overload before comparing.
4. At low listening level, compare L and R separately, then together. Change one connection at a time and note whether the difference follows an output or cable, or remains on the same transmitter channel. The P10T headphone output is another comparison point; check which transmitter channel you are monitoring.
5. On P10R+, center BAL ST for this stereo comparison and use known working earphones and listening cable. If another compatible receiver is available, compare with the same mode and settings. A difference repeated on two receivers points toward what they share; it does not, by itself, prove a transmitter fault.
6. If the signals before the link match but the difference persists, keep a record of modes, sensitivity, connections and results for Shure support. A balance offset may suit the performer’s preference, but do not record it as a repair without finding the cause.

Use UTILITIES → LOCK PANEL after agreeing and checking the balance. Shure specifies that it locks all controls except power and volume. The P10R+ manual does not describe a lock for BAL ST or BAL MIX alone: it locks the rest of the panel too.

Treat Audio → V LOCK separately. V LOCK fixes the volume at the physical knob position; if the performer needs to adjust it, check that this function is off. LOCK PANEL and V LOCK serve different purposes.

Before locking, choose what the performer should hear. In STEREO, BAL ST changes balance between earphones. In MIXMODE, BAL MIX changes the proportion of L/CH1 and R/CH2, with the combination heard in both ears. One example is the performer’s own vocal on L/CH1 and the band on R/CH2. Switching to MixMode changes the agreed monitoring setup and removes that stereo separation.

1. With volume low, verify the P10R+ model, Audio → MODE and the relevant balance setting. Listen to each input separately to identify it, then to the combination agreed with the performer. Do not use MixMode to test left/right separation in a stereo mix.
2. Enable LOCK PANEL and test outside the live program that the buttons no longer change balance while the volume knob remains usable. If volume is fixed, check V LOCK rather than assuming LOCK PANEL caused it.
3. To adjust the panel again, press exit, select OFF and press enter. After changing mode or balance, listen again before locking.
4. After an IR sync with P10T, recheck the result: Sync → RxSetup can transfer mode and lock settings as well as RF parameters. Record what you intend to retain so a later synchronization does not silently change the setup.