Unika TD-14000, User Instructions

5

Precautions    Introduction    Front Panel    Rear Panel    

Operation and Performance

Operation and Performance

Signal flow blocks

All TD14000 amplifiers have the same signal flow, and the same feature sets. The only 
internal differences are in the maximum output current per channel and VPL settings.

The input stage of all Td14000 amplifiers has a high sensitivity to provide ample system 
headroom. This in effect means that the input stage is almost impossible to clip.

Overall amplifier input gain is adjusted using the input stage DIP-switches. Please note 
that the gain setting is global, affecting all channels. Following the input stage, the 
dedicated level control on each channel allows signal attenuation from 0 dB to minus. 

The Current Peak Limiter(CPL)section dynamically limits the input signal based on three 
parameters: sensed current level, feedback from the output stage, and sensed voltage 
clip from the VPL (and output amplifier voltage clip if “Soft Clip” is activated). This 
ensures that power output is maintained within the design limits of the amplifier.

The adjustable Voltage Peak Limiter(VPL) sets the maximum output voltage and 
therefore also the maximum output power. Eight different voltage stages are available 
using the DIP-switches on the rear panel.

The sophisticated output section monitors faults and generates appropriate warnings, 
which are displayed on the amplifier front panel These alerts allow the operator to adjust 
system settings and thereby avoid problems. In the rare event that condition are 
extraordinarily severe, the amplifier will shut down until the fault or problem setting ha 
been rectified or adjusted. These sensing circuits level information, via a side chain, to 
the limiters. Sensing circuit also transmit local amplifier module temperature and power 
supply temperature to the appropriate protection mechanisms. Read the Protection, 
Faults and Warnings section for further details.

Figure

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TD14000 signal flow

Gain select switches

Front panel 

potentiometer

Dynamic Gain 

reduction

VPL select switches

Class TD

Hard/Soft switch

Voltage Clip sensing

Current clip sensing

Control Mute

Monitoring Level

Temperature

Fault/Warning

Input Amplifier

Level control

Clip Limiter

Voltage Peak Limiter

Output Power Amplifier

AMPLIFIER

TD

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14000