powersoft K2 DSP+AESOP, K3 DSP+AESOP, Quick Manual

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6 : 8.Amplifier settings: Idle mode

The idle mode function is a power saving feature. When 

this function is activated, the output stage is turned off after 
no input signal greater than a selected threshold is detected 
for a user selectable amount of time, saving about 40 W of 
power per channel. This results in reduced heating, longer 
amplifier and fans life, and, especially for fixed installations 
which are permanently turned on, a lower electricity bill. 
Exiting from idle mode is quasi-instantaneous.

The timeout range goes from 0 to 720 minutes.

6 : 9.DSP Settings: Common settings

6 : 9.1. Source selection

This menu allows to choose the input signal to be pro-

cessed by the DSp. The possible options are:

f

f

Stereo

: the signal coming from channel 1 is processed 

and routed out to output channel 1. Similarly, the input 
signal coming from channel 2 is processed and then 
routed out to output channel 2.

f

f

Parallel from CH1

: the input signal from channel 1 

feeds two parallel, distinct and independent process-
ing branches. The result of one branch is sent to 
output channel 1, while the result of the other branch is 
sent to output channel 2.

f

f

Parallel from CH2

: the input signal from channel 2 

feeds two parallel, distinct and independent process-
ing branches. The result of one branch is sent to 
output channel 1, while the result of the other branch is 
sent to output channel 2.

f

f

Mono Mix

: the input signals from channel 1 and 2 are 

summed together and routetd to both output channels 
in order to maintain a consistent output level. 

6 : 9.2. AES3

This menu controls the aES3 input stream options. The 

aES3 source can enter the amplifier from the rear XLr con-
nector or from the kaESOp board (if present) based on the 
type of input selection.

6 : 9.2.1. Gain trim (dB)

This menu allows the user to set the gain to be applied 

to the signal coming from the aES3 digital input. Setting a 
0 dB gain makes the full-scale digital signal equivalent to a 
20 dBu analog input signal.

6 : 9.2.2. If no link

This menu controls the amplifier’s behavior should the 

aES3 signal connection fail or become unreliable. The aES3 
connection is considered unreliable when transmission 
errors are greater than 1% of total data transmitted. The 
possible options are:

f

f

Mute

: when the aES3 connection fails, the amplifier 

mutes the output.

f

f

Analog

: when the aES3 connection fails, the amplifier 

will rely on the analog input as backup. This source 

signal switching is done in real time in order to avoid 
any glitches in the audio feed. if the input levels are 
correctly matched between analog input and aES3 
input (use the aES3 Gain trim parameter), the switch 
between aES3 and analog will be inaudible.

When using the analog input to backup a failed aES3 

feed, the analog input connection must be setup based on 
source type of input aES3 stream:

f

f

AES3 from rear XLR

 – the primary audio signal for 

this configuration is an aES3 fed via the rear XLr 
(aES3 



 DSp 



 Out). The backup analog cable, with 

an analog signal identical to that provided by aES3, 
should be plugged in the channel 1 XLr input. if the 
aES3 feed should fail, the amplifier will automatically 
fall back to channel 1 analog input (we suggest to set 
the DSp source selection to “parallel from cH1”). The 
signal levels of both primary aES3 and backup analog 
signals should be carefully matched. This can be 
done using the gain trim parameter or by adjusting the 
analog signal level.

f

f

AES3 from KASEOP

 – the primary audio signal for 

this configuration is an aES3 fed via the rJ45 port 
(kaESOp 



 DSp 



 Out). The backup analog cable, 

with an analog signal identical to that provided by the 
kaESOp, should be plugged in the channel 1 XLr and 
channe 2 XLr (set to analog) connectors. The DSp’s 
source selection can be set to any possible input. if 
the kaESOp feed should fail, the amplifier will auto-
matically fall back to the analog input on the channels 
1 and 2. The signal levels of both primary kaESOp and 
backup analog signals should be carefully matched. 
This can be done using the gain trim parameter or by 
adjusting the analog signal level.

When the aES3 stream is lost and the analog backup 

kicks in, a message on the front panel is displayed and if a 
remote client (e.g. armonía) is connected to the amplifier, an 
alarm is sent to it.

DSP Source Selection mode: Parallel from CH1

main digital connection
analog backup connection
(used if digital fails)

IN2

(analog)

carrying the same signal as the CH2 of the AES3 feed

carrying the same signal as the CH1 of the AES3 feed

IN1

(analog)

CH1 out

CH2 out

Analog back up cabling

Analog back up cabling

Main digital AES3 stream via RJ-45

CH1
CH2

Analog back up cabling

carrying the same signal as the CH1 of the AES3 feed

Digital main cabling

IN1

(analog)

IN2

(AES/EBU)

CH1
CH2

DSP Source Selection mode: Parallel from CH1

main digital connection
analog backup connection
(used if digital fails)

CH1 out

CH2 out

DSP Source Selection mode: Parallel from CH1

main digital connection
analog backup connection
(used if digital fails)

IN2

(analog)

carrying the same signal as the CH2 of the AES3 feed

carrying the same signal as the CH1 of the AES3 feed

IN1

(analog)

CH1 out

CH2 out

Analog back up cabling

Analog back up cabling

Main digital AES3 stream via RJ-45

CH1
CH2

Analog back up cabling

carrying the same signal as the CH1 of the AES3 feed

Digital main cabling

IN1

(analog)

IN2

(AES/EBU)

CH1
CH2

DSP Source Selection mode: Parallel from CH1

main digital connection
analog backup connection
(used if digital fails)

CH1 out

CH2 out

FIG. 2: AES3 from XLR.

DSP Source Selection mode: Parallel from CH1

main digital connection
analog backup connection
(used if digital fails)

IN2

(analog)

carrying the same signal as the CH2 of the AES3 feed

carrying the same signal as the CH1 of the AES3 feed

IN1

(analog)

CH1 out

CH2 out

Analog back up cabling

Analog back up cabling

Main digital AES3 stream via RJ-45

CH1
CH2

Analog back up cabling

carrying the same signal as the CH1 of the AES3 feed

Digital main cabling

IN1

(analog)

IN2

(AES/EBU)

CH1
CH2

DSP Source Selection mode: Parallel from CH1

main digital connection
analog backup connection
(used if digital fails)

CH1 out

CH2 out

DSP Source Selection mode: Parallel from CH1

main digital connection
analog backup connection
(used if digital fails)

IN2

(analog)

carrying the same signal as the CH2 of the AES3 feed

carrying the same signal as the CH1 of the AES3 feed

IN1

(analog)

CH1 out

CH2 out

Analog back up cabling

Analog back up cabling

Main digital AES3 stream via RJ-45

CH1
CH2

Analog back up cabling

carrying the same signal as the CH1 of the AES3 feed

Digital main cabling

IN1

(analog)

IN2

(AES/EBU)

CH1
CH2

DSP Source Selection mode: Parallel from CH1

main digital connection
analog backup connection
(used if digital fails)

CH1 out

CH2 out

FIG. 3: AES3 from KAESOP.

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