Ashly IS 2.8P, IS 3.8P, SP 12.1P, IS-TR7B, IS-PM6B User's Guide

IS 2.8P

8 x 2-inch
column speakers

IS 3.8P

8 x 3-inch
column speakers

SP 12.1P

Twelve-inch subwoofer

IS-TR7B

Operating and
Installation Manual

Tripod mount for IS 2.8P or IS 3.8P

IS-PM6B

Pole mount for IS 2.8P or IS 3.8P
+ SP 12.1P

IS-TWM

Tilt wall mount for IS 2.8P or IS 3.8P

IS-FWM

Flush wall mount for IS 2.8P or IS 3.8P

IS-JP2

Joining bracket for two IS 2.8Ps or IS 3.8Ps

IS-TWM IS-FWMIS-JP2

1

IS Series + SP 12.1P Operating Manual

Safety and Operation Precautions.

1. Heed all warnings; follow all instructions.

2. Refer all servicing to qualified personnel.

Servicing is required when the apparatus has
been damaged in any way.

Installation and Mounting

3. To prevent inductive effects from causing

hum and/or noise, loudspeaker lines should
not be laid together with other electric
cables, microphone or line level signal
cables connected to amplifier inputs.

4. To ensure proper sound reproduction,

correct loudspeaker polarity is necessary.
Check “+” and “−” polarity at both the
amplifiers and the IS Series speakers.

5. Make sure loudspeaker lines are not shorted

before turning the amplifier on.

6. The entire audio system must comply with

the current local standards and regulations
regarding electrical systems.

7. Ashly recommends this product only

be permanently installed by licensed,
professional installers (or specialized firms)
who can ensure a correct installation and
certified by a local inspector.

8. Do not install near any heat sources such

as radiators, heat registers, stoves, or
other apparatus (including amplifiers) that
produce heat.

9. Use only with mounts or brackets specified

by Ashly Audio.

10. Check the suitability of the support surface

to which the product is anchored (wall,
ceiling, structure, etc.) and the attachment
components (wall plugs, screws, brackets
etc.) to confirm that they are in compliance
with requirements set forth by local building,
safety and electrical codes.

11. Make sure all connections have been made

correctly and the loudspeaker input voltage
is suitable for the amplifier output.

12. Protect loudspeaker lines from damage.

Make sure they are positioned in a way that
they cannot be stepped on or crushed by
objects.

13. Make sure that no objects or liquids can get

into this product, as this may cause a short
circuit.

14. Place the SP 12.1P subwoofer on a flat, rigid

and anti-skid surface.

Pole, Tripod Mount, Joining Plate

15. Please use Ashly IS-TR7B tripod mount for

IS 2.8P and IS 3.8P speakers. If mounting
the speakers on top of the SP12.1P
subwoofer, use only IS-PM6B adjustable
speaker poles.

16. When pole or tripod mounting IS column

speakers, make certain units are placed in a
safe and secure area which is free from foot
traffic or other activities which could cause
accidental tripping or stand collapse.

17. Open the mount’s three “legs” as wide as

possible to ensure its stability.

18. Tighten the height-adjustment bolt firmly.

19. Insert the safety pins on both the fixed and

extendable parts of the tripod or pole.

20. Make sure the the Ashly IS-JP2 accessory

joining plate used to connect to IS speakers
is securely attached.

21. When using two IS speakers joined by an IS-

JP2 vertical mounting plate, pay particular
attention to tripod placement. Confirm
that the tripod mounts’ three legs are fully
extended. Remember that the center
of gravity is higher than with a single IS
speaker.

Operation

22. IS column line arrays can deliver high sound

pressure that can surpass 90 dB. Exposure
to high sound levels can cause permanent
hearing loss. Monitor and control the volume
at all times.

23. If amplifiers or other connected equipped

displays “clipping”, “peak”, or other overload
conditions, adjust to assure these are
operating below that threshold to prevent a
distorted signal, which may cause damage
to the speakers.

24. To avoid clipping, always use a clip limiter

if available. Always observe specified high
pass filtering recommendations; failure to
do so may result in damage to drivers.

25. Contact your authorized service center

or qualified personnel should any of the
following occur:

■ The loudspeaker does not function

normally

■ The cable has been damaged

■ Objects or liquids have gotten into the unit

■ The loudspeaker has been damaged due to

heavy impacts

26. Clean only with a dry cloth. Do not use

solvents, alcohol, benzene, or other volatile
substances for cleaning the external parts of
this product.

2 7. Don’t unplug signal cables when the amp

connected to your IS Series speakers is still
on.

28. Don’t remove the metal grille of the speaker,

which can cause damage to the speaker
cones.

29. Depending on the impedance switch setting

on the back of the IS speakers (8/32 ohms),
make sure to limit the number of connected
speakers to match the amplifier’s minimum
safe operating impedance. Please refer to
the Ashly amplifiers operations manual for
the correct settings and speaker count.

2

FREQUENCY RESPONSE:
100Hz - 20kHz

RATED POWER:
240W

RATED IMPEDANCE:
8Ω/32Ω

MADE IN CHINA

LINEAR COLUMN LOUDSPEAKER

INPUT

IS SERIES

3.8

8Ω

32Ω

IS Series + SP 12.1P Operating Manual

IS 2.8P & IS 3.8P

■ 8 x 2-inch (IS 2.8P) and 8 x 3-inch (IS

3.8P) matched, high power handling
transducers with Neodymium magnet
structures and heat-resistant voice coils

■ Switchable 8 Ω / 32 Ω impedance allows

up to eight loudspeakers to be driven by
a single amplifier channel.

■ AquaControl™ and Protēa DSP presets

for selected Ashly power amplifiers and
DSP processors (see page 6 for listing)

■ 2-pole Euroblock connector, plus 2 x

¼-inch phone jacks (IS 2.8P)
4-pole Euroblock connector, plus 2 x
SpeakOn® Connectors (IS-3.8P)

■ High-strength and light aluminum

enclosure

■ Durable, chip-resistant polymer coating

■ Optional pole, tripod, and tilt or flush wall

mounts

SP 12.1P

■ 12-inch, high power handling (350 W)

low-frequency transducer with ferrite
magnet structure

■ 4-pole Euroblock terminal inputs

■ Neutrik® SpeakOn x 2 inputs

■ Internally-braced birch ply enclosure

■ Pole sockets on top and side

Thank you for choosing Ashly IS Series line
array column speakers (and hopefully our
matching subwoofer). We know that there are
many choices on the market today; so we have
worked hard to create column speakers that set
themselves apart from the rest.

Elevate or wall-mount a pair of IS 3.8P or IS

2.8P speakers on stands, add one or more
SP 12.1P subwoofers and you have a high­fidelity, high-output system that’s perfect for
reception halls, small churches, mobile discos,
bars, coffee shops, and many other applications.

Before installation, check for any possible
shipping damage. Also, please read all of the
Safety and Operation Precautions on the
previous page.

Note that this Guide also covers IS-TWM Tilt

Wall Mount Bracket, IS-JP Joining Bracket, and
IS-FWM Flush Wall Mount Bracket.

Contents

Back Panel Connections ......................3

System Configurations

with Dual -impedance IS Series...........4

Other Typical Configurations ..............5

Ashly AquaControl (via AquaControl™)
and Protēa™ Presets for IS Speakers ... 7

Basic Loudspeaker Processing ............7

IS 2.8P Specifications ....................... 11

IS 3.8P Specifications

SP 12.1P Specifications .................... 16

IS-FW Joining Bracket Install .............17

IS-TWM Tilt Bracket Install ................ 18

IS-PM6B Tripod ................................. 18

Other IS Accessories ........................ 18

Back Panel Connections

IS Series columns are designed for both
permanent and mobile applications. Both
models have Neutrik® connections. The IS

3.8P adds Neutric SpeakOn connectors; the IS

2.8P has ¼-inch TS jacks.

IS 2.8P

¼-inch TS jack can be

used as the IS 2.8P

input or a pass-through

to another IS 2.8P

8 Ω / 32 Ω
impedance
switch

¼-inch TS jack can be

used as the IS 2.8P

input or a pass-through

to another IS 2.8P

2-conductor
Euroblock terminal
connector

WARNING: When connecting the IS speaker,

*

do not under any circumstances plug outputs

from different amplifiers or amp channels into
more than one jack (any type on the speaker) at
the same time.

*

*

3

++– –

+– + –

+– + –

+– + –

+– + –

+ –

+ –

+–

+–

+ –

+ –

Ashly 2-ch. Power Amplifier

Ashly 2-ch. Power Amplifier

Ashly Power Amplifier

8 Ω

Ashly 4-ch. Power Amplifier

2 channels @ 8 Ω, 2 -channels Bridge Mode (sub)

Ashly 2-ch. Power Amplifier

Each channel delivers power @ 4 Ω

8 Ω

8 Ω*

Ashly 2-ch. Power Amplifier

Amp running at 4 Ω per channel

8 Ω

Ashly 4-ch.

Power

Amplifier

8 Ω

32 Ω

+

– –

+– + –

+– + –

+– + –

+– + –

+ –

+ –

+–

+–

+ –

+ –

Ashly 2-ch. Power Amplifier

8 Ω

Ashly 4-ch. Power Amplifier

2 channels @ 8 Ω, 2 -channels Bridge Mode (sub)

8 Ω

8 Ω*

Ashly 2-ch. Power Amplifier

Amp running at 4 Ω per channel

8 Ω

Ashly 4-ch.

Power

Amplifier

8 Ω

IS Series + SP 12.1P Operating Manual

IS 3.8P SP 12.1P

Neutrik® SpeakOn

connectors can

be used as the

IS 3.8P input or

a pass-through to

another IS 3.8

8 Ω / 32 Ω
impedance
switch

4-conductor
Euroblock
terminal
connector

WARNING: When

*

connecting the IS
speaker, do not under

any circumstances plug

outputs from different
amplifiers or amp channels
into more than one jack (any
type on the speaker) at the
same time.”.

*

3.8

IS SERIES

LINEAR COLUMN LOUDSPEAKER

FREQUENCY RESPONSE:
100Hz - 20kHz

RATED POWER:
240W

RATED IMPEDANCE:
8Ω/32Ω

MADE IN CHINA

8Ω

32Ω

INPUT

4-conductor

Euroblock

connector

Neutrik® SpeakOn

connector for

input from Power

terminal

Amplifer

Eight IS columns • 32 Ω setting @ 62.5 W each Eight IS columns • 32 Ω setting @ 62.5 W each

Eight IS columns • 32 Ω setting @ 62.5 W each Eight IS columns • 32 Ω setting @ 62.5 W each

Neutrik® for output

to other speakers or

subwoofers.

System configurations with
Dual-impedance IS Series

IS Series’ Hi-Z / Lo-Z design allows more
connection options than typical single­impedance column speakers.

In 8 Ω mode, IS columns are ideal
for typical low-Z and live performance
applications.

However, switching IS columns to 32 Ω lets
one Ashly 4-channel amplifier drive up to 32
individual IS 2.8P or IS 3.8P speakers!

The example below shows 32 IS columns
driven with 62.5 watts each via a 4 x 500­watt amplifier.

CA 504 • 4 x 500 W @ 4 ΩAshly 4-channel amplifier

32 Ω

4

+– + –

+– + –

+– + –

+– + –

+ –

+ –

+–

+–

+ –

+ –

Ashly 2-ch. Power Amplifier

Ashly Power Amplifier

Bridged Mode

8 Ω

Ashly 4-ch. Power Amplifier

2 channels @ 8 Ω, 2 -channels Bridge Mode (sub)

Ashly 2-ch. Power Amplifier

Each channel delivers power @ 4 Ω

8 Ω

8 Ω*

Each channel delivers power @ 8 Ω

Ashly 2-ch. Power Amplifier

Amp running at 4 Ω per channel

8 Ω

Ashly 4-ch.

Power

Amplifier

+– + –

+– + –

+– + –

+ –

+ –

+–

+–

+ –

+ –

Ashly 2-ch. Power Amplifier

8 Ω

Ashly 4-ch. Power Amplifier

2 channels @ 8 Ω, 2 -channels Bridge Mode (sub)

Ashly 2-ch. Power Amplifier

8 Ω*

Ashly 2-ch. Power Amplifier

Amp running at 4 Ω per channel

8 Ω

Ashly 4-ch.

Power

Amplifier

+

– –

+– + –

+– + –

+– + –

+– + –

+ –

+ –

+–

+–

+ –

+ –

Ashly 2-ch. Power Amplifier

8 Ω

Ashly 4-ch. Power Amplifier

2 channels @ 8 Ω, 2 -channels Bridge Mode (sub)

8 Ω

8 Ω*

Ashly 2-ch. Power Amplifier

Amp running at 4 Ω per channel

8 Ω

Ashly 4-ch.

Power

Amplifier

8 Ω

32 Ω

CA 504 • 4 x 500 W @ 4 ΩAshly 4-channel amplifier

IS Series + SP 12.1P Operating Manual

Shown below is a system with 16 IS columns
driven at 62.5 watts each through a 4 x 250-watt
amp.

Four IS columns

32 Ω setting

@ 65.2 W each

4-channel

amplifier

Four IS columns

32 Ω setting

@ 62.5 W each

Four IS columns

32 Ω setting

@ 65.25 W each

CA 504
4 x 250 W

@ 8 Ω

Four IS columns

32 Ω setting

@ 65.2 W each

Other typical configurations

– –

+ +– –

Ashly 4-ch. Power Amplifier

8 Ω

+ +

Wattage for each column =

amplifier power (per channel @ stated
impedance) / total number of columns

For example, 500 W @ 4 Ω = 62.5 W per column.

impedance) / total number of columns.

32 / total number of columns

For example, for 8 IS speakers: 32 / 8 = 4 ohms.

Required amplifier power =

total number of cabinets x desired

If you need 60W per IS Series speaker,

Impedance =

speaker wattage

then 60 x 8 = 480 W

8 Ω

+– + –

5

+– + –

+ –

Ashly 4-ch. Power Amplifier

+– + –

+ –

+–

+–

+ –

+ –

Bridged Mode

Ashly 4-ch. Power Amplifier

2 channels @ 8 Ω, 2 -channels Bridge Mode (sub)

8 Ω*

Ashly 4-ch.

Power

Amplifier

+– + –

+ –

Ashly 4-ch. Power Amplifier

2 channels @ 8 Ω, 2 -channels Bridge Mode (sub)

Amp running at 4 Ω per channel

Amp running at 4Ω per channel

IS Series + SP 12.1P Operating Manual

NOTE: If amp

power exceeds
more than 2 x
power handling
of the speaker,
then selecting
32 Ω mode on
the speaker will
draw less from
those amplifier
channels.
Example, CA-

1.04 = 500 W/
ch @
8 Ω (more than
2 x speaker
handling). With
the speaker
set to 32 Ω,
the same amp
operates with
approximately
125 W.

8 Ω*

Ashly 4-ch.

Power

Amplifier

+–

+ –

+–

+ –

8Ω

+ –

Ashly Power Amplifier

+ –

+– + –

Ashly 4-ch. Power Amplifier

8 Ω

+– + –

Ashly 2-ch. Power Amplifier

Ashly 2-ch. Power Amplifier

Bridged Mode

+– + –

Ashly 2-ch. Power Amplifier

6