IDEA IMD16K Professional amplifier User Manual
- June 1, 2024
- iDea
Table of Contents
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:
-
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. -
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. -
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. -
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. -
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. -
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. -
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