Thank you for choosing the L2 audio PA IM/IMP professional speaker enclosure. We’re
confident that your purchase will give you years of service and the high quality of sound
reproduction that our customers have come to expect. We pride ourselves in designing the right
product for the right application. We have listened to our customers and have designed what we
consider to be the best product in both performance and value for money that is available on the
market today.
Please take some time to read this manual and then keep it somewhere safe for future reference.
Also, here at L2 audio, we welcome your feedback and information. We like to know what you’re
using your L2 audio product for!
Please take a few minutes to register your purchase online at www.l2audio.co.uk/warranty
within 14 days of purchase. Failure to do so could affect your warranty. This information is for
our information only and will not be passed on to any third party. Complete customer
satisfaction is our goal at L2 audio. If you have any questions, technical or otherwise please drop
us an email at [email protected].
Once again, many thanks for your purchase.........
The L2 audio team.
INTRODUCTION
This manual is designed to help you get the most out of your L2 audio IM/IMP speaker enclosure.
The IM range refers to passive or un powered speakers. These will need an external amplification
source. The IMP range refers to active or powered speakers. These speakers have built in
amplifiers so only require a signal source. There are 4 models in each range, 8”,10”, 12” and 15”.
All models feature 2 way speaker configurations, a LF (low frequency) woofer and a HF (high
frequency) tweeter or compression driver. The woofer has been carefully selected for optimum
performance and has an aluminium chassis. The HF is a titanium diaphragm and a light mass
voice coil, enabling it to reach frequencies as high as 18KHz. There is a quality crossover unit built
in that separates the high and low frequencies. All models are made of the same high impact
injection moulded polymer and can be used for FOH (front of house) PA applications, installation
or as stage monitors.
IM Passive Series.
1. INPUT on the IM8H is via ¼” jack or binding posts. Input on the IM10, IM12 and IM15 is via
speakon® input . The speakon® has a parallel input and output. These inputs receive the
powered signal from an external power amplifier or powered mixer.
IMP Powered Series.
1. XLR/Jack Input and output sockets, electronically balanced. The in XLR socket allows
connection of a low level signal source such as a microphone. The out XLR is parallel and
can be used as an output to link to another speaker into the jack line in (2) (Jack only on
IMP8)
2. LINE. Input is a ¼” jack for line level or instruments. This is the input used to connect from a
mixer etc
3. LINE/MIC. These are signal lights from either the line in or mic in inputs
4. GAIN. Regulates pre-amplification of the signal coming from the input "IN", ensuring
perfect operation of the channel circuits.
5. HIGH/MID/LOW. 3-band equalization to modify the required tone. These controls are
electronically post-gain and if boosted can clip the channel. This is indicated by the AACS
(clip light) indicator (see 9).If this occurs adjust the gain control anticlockwise. When the
potentiometers are set to "0" (indicated by a ‘notch’ in the dial) the tone is set to ‘flat’.
Clockwise will boost, anticlockwise will cut.
6. TONE (IMP8 ONLY). This is to adjust the tone. Clockwise from the 12 0 clock position will
add more treble whilst anti clockwise will add more bass.
7. VOL. Volume controls the signal level. Optimum performance is achieved with this set at
around 4 or 5 (level with ‘0’ on the tone controls)
8. GND/LIFT. 2-position selector for separating the signal source ground and the amplifier
ground circuits. ON: the signal ground is electrically disconnected from the amplifier ground
circuit (the chassis). If hum is heard in the speakers, the ON position breaks the ground
loop. This is often the cause of the interference. OFF: the ground of the input signals is
electrically connected to the amplifier ground circuit (the chassis). USE GROUND LIFT ONLY
WITH BALANCED SIGNALS.
9. CLIP (Automatic amplitude clip system) when the audio signal reaches the dangerous
threshold for the transducers, this circuit will automatically cut in reducing the amount of
signal in order to protect the speaker.
10. PWR . An LED light will indicate when the power is switched on or off.
11. AC power socket. Is used to connect the unit to a power supply via enclosed power.
Caution: ensure the source voltage matches the voltage of product before turning on the
unit.
12. FUSE HOLDER. The fuse holder is for containing the fuse, which is a safety device that
protects the AC supplies circuit of the unit. Caution: if the fuse blows, it should be replaced
with the same type and specification, if the fuse continues to blow, please refer servicing to
qualified personnel.
13. VOLTAGE SELECTION SWITCH. This switch provides two voltage selections: 115V or 230V,
please select the proper voltage depending on the voltage used.230v is used in the UK.
Specification
IM8H IM10H IM12H IM15H
Frequency Range 60Hz-18KHz 60Hz-18KHz 45Hz-18KHz 40Hz-18KHz
Power capacity
(RMS)
100 watts 200 watts 300 watts 400 watts
Impedance 8 ohms 8 ohms 8 ohms 8 ohms
Sensitivity
(@1w1mt)
93dB 94dB 96dB 97dB
Dispersion 90º x 60º 90º x 60º 90º x 60º
Crossover frequency 2.5KHz 2.5KHz 2.5KHz 2.5KHz
Low frequency 8” ‘powerforce’ driver 10” ‘powerforce’
driver
12” ‘powerforce’
driver
15” ‘powerforce’
driver
High frequency 1” dome 34.4 ‘powerforce’
compression
34.4 ‘powerforce’
compression
44.4 ‘powerforce’
compression
Maximum spl 118dB 120dB 121dB 124dB
Input connectors ¼” jack 2 x speakon® 2 x speakon® 2 x speakon®
Dimensions
(HxWxD)
410x230x280 530x310x345 630x330x410 720x365x495
Net weight 6kg 14kg 19kg 24kg
Specification
IMP8H IMP10H IMP12H IMP15H
Frequency Range 60Hz-18KHz 60Hz-18KHz 45Hz-18KHz 40Hz-18KHz
Power capacity
(RMS)
100 watts 200 + 50 watts 300 + 50 watts 350 + 100 watts
Impedance 8 ohms 8 ohms 8 ohms 8 ohms
Sensitivity
(@1w1mt)
93dB 94dB 96dB 97dB
Dispersion 90º x 60º 90º x 60º 90º x 60º
Crossover frequency 2.5KHz 2.5KHz 2.5KHz 2.5KHz
Low frequency 8” ‘powerforce’ driver 10” ‘powerforce’
driver
12” ‘powerforce’
driver
15” ‘powerforce’ driver
High frequency 1” dome 34.4 ‘powerforce’
compression
34.4 ‘powerforce’
compression
44.4 ‘powerforce’
compression
Maximum spl 118dB 120dB 121dB 124dB
Input connectors 2 x ¼” jack XLR & jack XLR & jack XLR & jack
Dimensions
(HxWxD)
410x230x280 530x310x345 630x330x410 720x365x495
Net weight 8.5kg 18.5kg 23.5kg 28.5kg
WARRANTY TERMS AND CONDITIONS
1. L2 Audio is exclusively distributed by the MGD group limited (hereinafter referred to as
‘MGD’)
2. MGD or any MGD authorised agent warrant that the products supplied are free from
defective material or workmanship. This warranty is for a period of one year from date of
purchase. (Exceptions are listed in points 6 & 7)
3. The product should be registered within 14 days of purchase. There is a dedicated on line
form at www.l2audio.co.uk/warranty. If you are not able to register online, please
contact MGD at the address below within 14 days of purchase.
4. Your warranty is a RTB (return to base) warranty. In the unlikely event that your product
needs to be returned, please initially contact your place of purchase to obtain a returns
advice number. We will however always try first to establish if the fault can be rectified
without returning the product.
5. Every effort must be made to retain the original packaging. Any return not in original
packaging is more susceptible to transit damage. Any subsequent claim may be invalidated
due to insufficient packaging. MGD is not liable for any goods sent back that are received
damaged.
6. The warranty does not apply to any misuse, modifications, accidental damage, wear and
tear, neglect or loss occurred during transit.
7. Mains leads and batteries (rechargeable or other) are not covered under this warranty.
Please refer to ‘Battery care’ section of this manual for further information.
8. Your statutory rights are not affected.
C/O MGD Group Ltd
11 Pentrich Road
Giltbrook Trade and Industrial Park
Nottingham NG16 2UZ
England
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L2 Audio IMP10H Owners Manual And Instruction Manual
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