IDEA IMD16K Professional amplifier User Manual

IMD16K
Professional amplifier
User Manual

Safety Information

The symbol is used to indicate that some hazardous live terminals are involved within this apparatus, even under the normal operating conditions.
The symbol is used in the service documentation to indicate that specific component shall be only replaced by the component specified in that Documentation for safety reasons.
Protective grounding terminal.
Alternating current /voltage.
Hazardous live terminal.

ON: Denotes the apparatus turns on.
OFF: Denotes the apparatus turns off, bec ause of using the single pole switch, be sure to unplug the AC power to prevent any electric shock before you proceed your service.
WARNING: Describes precautions that should be observed to prevent the danger of injury or death to the user.
** Disposing of this product should not be placed in municipal waste and should be collected separately.
CAUTION: Describes precautions that should be observed to prevent danger of the apparatus.
WARNING
Power Supply
Ensure the source voltage matches the voltage of the power supply before turning ON the apparatus. Unplug this apparatus during lightning storms or when unused for long periods of time.
External Connection
The external wiring connected to the output hazardous live terminals requires installation by an instructed person, or the use of ready made leads or cords.
Do not Remove any Cover
There may be some areas with high voltages inside, to reduce the risk of electric shock, do not remove any cover if the power supply is connected. The cover should be removed by the qualified personnel only. No user serviceable parts inside.
Fuse
To prevent a fire, make sure to use fuses with specified standard (current, voltage, type). Do not use a different fuse or short circuit the fuse holder.
Before replacing the fuse, turn OFF the apparatus and disconnected the power source.
Protective Grounding
Make sure to connect the protective grounding to prevent any electric shock before turning ON the apparatus.
Never cut off the internal or external pro tective grounding wire or disconnect the wiring of protective grounding terminal.
Operating Conditions
This apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such as vases, shall be placed on this apparatus.
To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
Do not use this apparatus near water. lnstall in accordance with the manufacturer’s instructions. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including am plifiers) that produce heat. Do not block any ventilation openings.
No naked flame sources, such as lighted candles, should be placed on the apparatus.
IMPORTANT SAFETY INSTRUCTIONS**

• Read these instructions.
• Follow all instructions.
• Keep these instructions.
• Heed all warnings.
• Only use attachments/accessories spec ified by the manu- facturer.

Power Cord and Plug
Do not defeat the safety purpose of the polarized or grounding type plug. A polarized plug has two blades with one being wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. lf the provided plug does not fit into your outlet, consult an electrician for replace ment of the obsolete outlet.
Protect the power cord from being walk ed on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
Cleaning
When the apparatus needs cleaning, you can blow off dust from the apparatus with a blower or clean with rag, etc. Do not use solvents such as benzol, alcohol, or other fluids with very strong volatility and flammability for cleaning the apparatus body. Clean only with dry cloth.
Servicing
Refer all servicing to qualified personnel. To reduce the risk of electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so. Servicing is required when the apparatus has been damaged in any way , such as power supply cord or plug is damaged , liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture , does not operate normally, or has been dropped.
The mains plug is used as the disconnect device, the disconnect device shall remain readily operable.

Overview

Combining the excellent sound of Class AB and the power efficiency of the Class D amplifiers, TD Class technology allows lightweight amplifiers to deliver powerful and high-quality signal at the same time. In this amplifiers the power supply tracks the audio signal at all frequencies, supplying the required rail voltage while at the same time reserving additional headroom. The superior efficiency reached by TD Class allows greater power density while minimizing cooling requirements, yet sound quality matches the best class AB design.
The latest protection system carries out an advanced analysis of signal level. When transducers operate in the nonlinear domain, either at high excursion, high temperature or high voltage, protection system acts as a smart power regulator to extend the component durability, while maintaining the highest dynamic range.
Inputs are available in analogue and AES , AKM 96 kHz A/D converters at the front-end yield an impressive encoding dynamic of 120 dB. AES/EBU digital inputs operate with sample rate converters from 44.1 kHz to 192 kHz.

Technical Data

OUTPUT POWER

8Ω Power Stereo mode| 4 x 1800 W
4Ω Power Stereo mode| 4 x 3500 W
2Ω Power Stereo mode| 4 x 3300 W
AMPLIFICATION
Frequency response|  20Hz – 25 kHz ± 0.5 dB
THD+N (Rated power 4 Ω/kHz)| < 0.1%
Signal noise ratio| 110 dB
Amplification gain (selectable)| 26 – 32 – 38 – 40 dB
CONNECTORS
Input (per channel)| 3-pin XLR, electronically balanced
Input  impedance| 20 kΩ (balanced) – 10kΩ (unbalanced)
Output connectors| NEUTRIK SpeakOn®
POWER
Power requirements| 100-240V, 50-60 Hz
Minimum power-up voltage| 180-260V, 50-60 Hz
PHYSICAL
Dimensions| 483 x 460 x 88 mm
Weight| 18.0 kg

Overview of Connectors and Controls

2.1. Front panel
The front panel LED area includes rhe following indicators per channel:

1. Level control
   Calibrated potentiometers to alter the total gain of the power amplifier. In order to avoid distortions in mixing consoles upstream. these controls should normally be positioned between 0 and 10. The calibraled markings show the additional a attenuation directly.

2. Protect LED
   When this LED is up during operation, one of the protection circuits against over-temperature, overload ,shorted outputs ,radio fre- quency interference or DC faults has been triggered.The cause of the error e.g. shorted loudspeaker line must be remedied. In case of overheating, wait for a few seconds until the amplifier switches back to operating mode itself.

3. Clip/limit indicator
   This indicator signal is on if the amplifier output is clipping or limiting. It has two different indication states: If the clip limiter is engaged, it has a short time constant, and it illuminates briefly. If the clip limiter is no engaged, it has an increased time constant, and it illuminates for a longer period.

4. SIG / HI- IMP LED
   When the signal is green, it indicates normal operating range; when tbe signal is orange, it indicates high input impedance or open load.

5. Power ON indication
   This LED light is on wben the mains switch is pressed. When not lit, the unit is not connected to the mains or the mains fuse has blown.

6. Fan outlet grill
   The amplifier uses forced air cooling. Air is taken from the rear inlet, and then excluded from the back. Do not obstruct the intake and exhaust ports.

7. POWER Switch
   The unit is switched on via the power switch. The loudspeaker outputs are switched on via delayed relays so that no startup tran- sients are audible. A current limiter prevents startup peaks on the mains line and prevents the mains fuse from blowing.

2.2. Rear panel

Four channel sensitive control mode
DIP SWITCH FEATURES
Stereo and parallel modes may be adjusted using the DIP
switches on the rear panel of the amplifier. Gain, globally
set for ali channels, from +26 dB to +40dB.

2.2.1. SPEAK ON OUTPUT CONNECTIONS

2.2.2. SPEAK ON INPUT CONNECTIONS 2.2.3. STEREO MODE
Before setting the mode. please turn off the amplifier and slide the mode select switch to the set up shown below. In th is mode, Channel A an Channel B operate independently (just traditional stereo amplifier). The signal input into channel A can be output from channel A only; similarly, the signal input into channel B can be output from channel B only.

2.2.4. PARALLEL MODE
Before setting the mode, turn off the amplifier. In parallel mode, turn on the switch 9 as shown below (fig. 3). The green led indicator is on, menaing the parallel mode is active. Input the channel signal from channel A. At this time, channel A and channel B have signal output, and the audio signal can control the volume separately. Similarly, turn on the switch 10 as shown in fig. 4 below. The green light is on, maening the parallel mode is active. Input the channel signal from channel C. At this time, channel C and channel D have signal output, and the audio signal can control the volume separately.

2.2.5. AUDIO INPUT AND OUTPUT CONNECTIONS
Balanced input connections
The XLR in pul conncctors are eleetronieally balanced, and wircd according to the IEC 268 standa rd(pin 2 = hot). XLR inp u1 con- nectors should be wiredas fo llows:

When linking the same source signal to several input channels, be aware that there is a limit to the number of channels an outout source can drive. A typical output source (e.g. a DSP crossover unit) can drive up to two amplifier channels before external line-drivers might be required to buffer the signal.

Unbalanced input connections
To connect an input to an unbalanced source, it is possible to connect pins 1 and 3 in the XLR plug at the amplifier end of the cable. However, a better method is to connect pin 3 to the shield at the source end of the cable, as this usually results in better hum and
noise rejection . Balanced input connections are recommended whenever possible. SpeakOn output connections
Refer to the instructions in this section if your amplifier is equipped wilh the Speakon output connectors.

I MÁS D ELECTROACÚSTICA, S.L.
Pol. A Trabe 19-20, 15350 – Cedeira,
A Coruña (España/Spain)
Tel. +34 881 545 135
www.ideaproaudio.com
info@ideaproaudio.com
Specifications and product appearance may be
subject to change without notice.
IDEA_IMD16K_UserManual_EN_v1.0
09 – 2023

References

• IDEA Pro Audio

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