Template:PS1 Power Stand / What Do the LEDs Mean

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L1 Model I This information is applicable to the L1 Model I
Classic This information is applicable to the L1® Classic

PS1 Signal OL LED

Signal/OL LEDs

How to Interpret the LEDs Near the Channel 1 and Channel 2 Inputs

There are two LEDs on the PS1 Power Stand (Classic) / Model I near the Trim knob labelled Signal/OL -- one for Channel 1 and another for Channel 2.

The Signal/OL LEDs indicate when the signal level in the input preamplifier reaches certain important thresholds. The trim controls located near the LEDs adjusts the amount of gain in the preamplifier.

The LEDs turn from off → green when the signal level exceeds a small amount.
The LEDs turn from green → red when the signal reaches a level that's about 10 dB below a level that would clip the preamp and cause objectionable distortion.

When the LED is off (but you are playing an instrument you think is connected to the PS1 or singing/talking into a microphone you think is connected): Increase the level of the trim control. If the LED still does not turn green or red, check instrument/microphone and cables to the PS1.

When you see green only: This indicates that there's some signal in the channel but not enough. While singing or playing the loudest you ever plan to in the performance, increase the trim level until the LED is only flickering red. This is the optimal gain.

When you see red most of the time: Decrease the trim level until you see only flickering red. This is the optimal gain.

Phantom Power LED and Switch

Phantom Power LEDs

The LEDs near the Phantom Power button are either off or red, indicating the state of the Phantom Power on the balanced input. Note: Phantom Power is generally only required for certain types of microphones, and should not be on unless you know the microphone which is directly connected to that channel requires the "phantom power".

Power / System Status LED

This LED normally is a steady green when the power is on. If it is not lit or if it is yellow/amber, call

this picture taken circa 2003

Support team in 2003/2004 - all musicians!

North America

Call Support

Telephone the Bose Live Music Product & Technical Support Team (877) 335-2673 (U.S. and Canada only)* Hours of operation Monday-Friday: 9:00 AM - 9:00 PM ET


Australia

Bose Australia

Product & Technical Support; Service & Repair within Australia: 1800 061 046

New Zealand

Bose New Zealand

Customer Service Dealer Locations & Product Information please call: 0800 501 511 (during office hours 11Am- 7PM). For any enquiries email us.

United Kingdom

Andy-at-Bose-UK andrew_rigler@bose.com has provided the following information.

If you have any questions about your L1® please contact your dealer initially; they are there to support you and, in return, Bose UK want to fully support retailers with physical music stores, where you can see and hear L1® for yourself.
These stores are the lifeblood of live music in the UK and that is why we do not offer Bose dealerships to internet only/mail order only organisations.
Other support for the Bose L1® can be accessed either by calling Bose UK Head Office on 0870 741 4500 or Andy Rigler on 07738 801130.
Bose L1® systems can be purchased from the following UK authorised Music Partners:

Bose Dealers in the UK


Loan Units

Please note that the 45 Day Trial scheme only applies to US residents, although short term loan units can be provided, subject to availability.


If you need any help

UK Section last reviewed ST 11:51, 3 November 2015 (EST).

Power LED

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