6
IMPORTANT:TheSPEAKER1jackhasanopenloadprotectionfeature.Ifnocableisconnected
tothisjackthePowerStationwillremainlockedinBYPASS/STANDBYmoderegardlessofthe
front panel Standby switch setting. This is done to prevent potential damage to your valuable
vintageampshouldthespeakercablebecomedisconnectedwhileinBypassmode.
11. CABINET IMPEDANCE – When one or both of the two parallel jacks are connected, simply set the
impedance selector switch for connection according to the chart below:
16Ω + None = 16Ω, 4Ω + None = 4Ω
16Ω + 16Ω = 8Ω, 4Ω + 4Ω = 4Ω
8Ω + None = 8Ω 2Ω + None = 2Ω
8Ω + 8Ω = 4Ω
IMPORTANT:The2/4Ωampandspeakersettingisdesignedtobesafeandcompatiblewithall
vintage2Ωand4Ωampliers.Becauseareactiveloadisnotanactualspeaker,theimpedance
behavioroftheloadwillnotvaryaswildlyasanactualspeakerandwillthereforemaintainasafe
and stable load for your treasured vintage amps at this low impedance range. Even so, we do
recommend that your power tubes are in good condition when using this device.
12. GROUND LIFT – This switch separates the internal circuit ground from chassis and power ground
in order to eliminate possible ground loops between the Power Station and the load amplier
connected to the AMP IN jack. Select the position which yields quietest operation. With a properly
wired AC outlet and factory supplied AC cord, this switch may not produce a noticeable dierence.
13. MAINS FUSE – Protects the amplier from electrical faults. Replace only with type and rating spe-
cied on the rear panel of your amplier.
14. AC MAINS INPUT – Connect to a grounded outlet in accordance with the voltage and frequency
specied on the rear panel of your amplier.
USE ONLY THE FACTORY SUPPLIED CORDSET OR A UL APPROVED EQUIVALENT TYPE
USING SILENT MODE
Silent Mode allows you to use the Power Station as a silent adjustable reactive load for quiet direct recor-
ding or when sending a live amp signal to front of house with no speaker cab connected. In this mode it is
not necessary to power up the Power Station. You don’t even need to plug in the power cord. The Voicing
switches, Low Pass Filter switch, FX Send (along with the FX Level switch), and the Balanced and Unba-
lanced Line Outputs all operate with no AC power applied.
TUBE FUNCTION AND LOCATION
Power and phase inverter tubes are mounted horizontally near the back of the unit. The power tubes are
factory biased for optimum performance. No provision for internal or external biasing is provided. To insure
that the Power Station will remain within safe temperature operating limits, the bias must not be modied
or tampered with. Doing so will immediately void the warranty. Tube types are factory selected for superior
performance, consistent tone quality and reliability. Power tubes are factory tested and matched. For best
performance, replace only with factory recommended tubes.