Can a 12-channel amp bring audiophile performance throughout your home? Yes, if it’s from Sherbourn! Define up to 6 separate stereo zones with 40 watts per channel, all channels driven, or add more PA 12-45s as necessary to cover your whole house. You can even combine channels for even more power—120W into 8 ohms for 6 channels!
- Fully discrete, audiophile-grade power amplifier
- Two stereo input buses and direct channel insert points
- Auto on, or trigger input
- Convection cooled, with fan assist
- 10-year warranty
- Rack mount ears included
Analog inputs:
Twho bus inputs (Bus 1, Bus 2); each bus has one stereo pair of unbalanced (RCA) inputs
12 individual channel inputs; each channel has one unbalanced (RCA) input
Analog outputs:
2 bus outputs (Bus 1, Bus 2); each bus has one stereo pair of unbalanced (RCA) outputs which provide a buffered copy of the input signal
Input sensitivity (for full output):
365 mV (8 ohm load)
Speaker outputs:
12 pairs of 5-way binding posts (standard red and black); one pair per channel
(in bridge mode, speakers are connected to the red binding posts of both channels in the zone)
Minimum recommended load impedance:
Individual channels; 4 ohms (which equals one 4 ohm load or two paralleled 8 ohm loads)
Bridged channels; 8 ohms
Power output:
65 watts RMS per channel (x12); into 4 ohms; two channels driven
40 watts RMS per channel (x12); into 4 ohms; all channels driven
120 watts RMS per channel (x6); into 8 ohms (bridged); two channels driven
80 watts RMS per channel (x6); into 8 ohms (bridged); all channels driven
32 watts RMS per channel (x12); into 8 ohms
S/N ratio:
> 95 dB (A-weighted)
Frequency response:
20 Hz to 20 kHz + / - 0.2 dB at 1 watt (- 2.0 dB at 80 kHz)
Trigger and control:
Trigger Input: 3 - 30 V AC or DC
Trigger Output: 12 V DC 10 mA max
Inputs and Outputs
Analog inputs:
2 bus inputs (bus 1, bus 2); each bus has one stereo pair of unbalanced (RCA) inputs
12 individual channel inputs; each channel has one unbalanced (RCA) input
Input sensitivity (for full output into 8 ohms):
365 mV
Speaker outputs:
12 pairs of 5-way binding posts (standard red and black); one pair per channel
(in bridge mode, speakers are connected to the red binding posts of both channels in the zone)
Minimum recommended load impedance:
Individual channels: 4 ohms (one 4 ohm load or two paralleled 8 ohm loads per channel)
Bridged mode: 8 ohms minimum load per bridged channel
Trigger and control:
Trigger Input (mono 1/8”), Trigger Output (mono 1/8”)
Front panel controls and indicators:
On / Off (large push button); toggles between Standby mode and On mode
On / Off LED (1); red indicates Standby mode; blue indicates normal operation
Zone Status LEDs (6); blue indicates normal operation; flashing blue indicates a fault
(each LED indicates the status of one zone (channel pair))
(Zone Status LEDs are not lit in Standby mode)
Rear panel controls and indicators:
Power (rocker switch); switches main power
Input Voltage (protected slide switch); selects 115 or 230 VAC line voltage
Power Mode slide switch (Auto / On / Triggered)
Bridge Mode switch (6); labelled BR / ST for Bridge / Stereo (Independent) mode
one per zone / pair of channels; configures each zone / channel pair
as either two separate output channels (Stereo) or one bridged output channel
Line In switch (12); one per channel; selects the input source for the channel
(Bus 1, Bus 2, or individual input).
In bridged mode, only one input is active per bridged pair of channels.
Volume (12); sets input level / gain for each channel
In bridged mode, only one Volume control is active per bridged pair of channels
(the input and controls from the odd numbered channel are active)
AC power input:
IEC C17/C18 (10/15A two wire) type inlet and power cord
AC Power line fuse (rear panel holder)
Download detailed specifications:
PA 12-45 12 ohm
