Topp Music Gear TXO-234 MK II User Manual

2-way/3-way stereo /4-way mono

USER's MANUAL

ACTIVE CROSSOVER

TXO-234 MK II

SAFETY RELATED SYMBOLS

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

This symbol, wherever used, alerts
you to the presence of un-insulated
and dangerous voltages within the
product enclosure. These are voltages
that may be sufficient to constitute the
risk of electric shock or death.

WARNING

Describes precautions that should be
observed to prevent the possibility of
death or injury to the user.

Describes precautions that should be
observed to prevent damage to the
product.

CAUTION

Operating Conditions

Always install in accordance with the
manufacturer's instructions.

This symbol, wherever used, alerts
you to important operating and ma­intenance instructions. Please read.

Protective Ground Terminal

AC mains (Alternating Current)

Hazardous Live Terminal

ON:
OFF:

Denotes the product is turned on.
Denotes the product is turned off.

WARNING

Power Supply

Ensure that the mains source voltage (AC
outlet) matches the voltage rating of the
product. Failure to do so could result in
damage to the product and possibly the user.

External Connection

Do not Remove any Covers

Fuse

To prevent fire and damage to the
product, use only the recommended
fuse type as indicated in this manual.
Do not short-circuit the fuse holder.
Before replacing the fuse, make sure
that the product is OFF and disconnected
from the AC outlet.

Always use proper ready-made insulated
mains cabling (power cord). Failure to do
so could result in shock/death or fire. If
in doubt, seek advice, from a registered
electrician.

Within the product are areas where high
voltages may present. To reduce the risk
of electric shock do not remove any
covers unless the AC mains power cord
is removed.

Covers should be removed by qualified
service personnel only.

No user serviceable parts inside.

Unplug the product before electrical storms
occur and when unused for long periods of
time to reduce the risk of electric shock or
fire.

Protective Ground

Before turning the product ON, make sure

that it is connected to Ground. This is to
prevent the risk of electric shock.
Never cut internal or external Ground wires.
Likewise, never remove Ground wiring
from the Protective Ground Terminal.

Disposing of this product should
not be placed in municipal waste
and should be separate collection.

1111

CONTROLS

Xover Frequency
Delay

Input

Gain
Threshold

POWER SUPPLY

Mains Voltages

Power Consumption

Fuse

Mains Connection

PHYSICAL

Dimensions
Net Weight

CD Horn

Limiter
Rear Panel
Xover Frequency

Mode
LF Sum

CROSSOVER

Filter Type
Stereo Mode Frequencies
Low/High

Low/Mid
Mid/High
Mono Mode Frequencies

Low/Low-Mid
Low-Mid/High-Mid
High-Mid/High

FUNCTION SWITCHES

Front Panel

Phase Invert

Low Cut

Mute

ON=Channel 1 6dB louder / Channel 2: the

Corrects CD horn frequency response above

3.5 kHz
Activates the limiter function for all outputs

Multiplies crossover frequency range by 10
Selects stereo/mono and 2/3/4-way operation
Selects normal stereo or mono-summed low

frequency operation

High to High-Mid:

High-Mid to Low-Mid:

Low-Mid to Low:

95 dB
95 dB
92 dB

Linkwitz-Riley, 24 dB/Octave, state-variable

44 to 930 Hz

44 to 930 Hz

440 Hz to 9.3 kHz

44 to 930 Hz
440 Hz to 9.3 kHz
440 Hz to 9.3 kHz

1

10

1

10

440 Hz to 9.3 kHz
440 Hz to 9.3 kHz

440 Hz to 9.3 kHz

Activates 25 Hz Butterworth, 12 dB/Octave

high-pass filter

Mutes the individual output

Inverts the phase at the individual output

Controls the input gain (- to +12 dB)

Controls the crossover frequency
Controls the delay at the low output (0 to 2 msec.)

U.K./Australia
Europe
General Export Model

95-120V: 500mA 250VAC

Controls the output gain (- to 6 dB)

Controls the threshold of the limiter ( 6 dB to OFF)

USA/Canada

230 V~, 50 Hz

95-120 V~, 210-240 V~, 50-60 Hz

17W

210-240V: T250mAL 250VAC

Standard IEC receptacle

3 kg(6.61 lb)

483 194.5 44mm/19(W)" 7.7(D)" 1.7(H)"

same as before

120 V~, 60 Hz
240 V~, 50 Hz

Non-use Periods:

Object and Liquid Entry:

Damage Requiring Service:

Servicing:

The user should not attempt to service the appliance beyond that is describedin the

Instructions.All other servicing should be referred to qualifield service personnel.

The power cord of the appliance should be unplugged from the outlet when left unused
for a long period of time.

Care should be taken so that objects do not fall and liquids are not spilled into the enclosure
through openings.

The appliance should be serviced by qualified service personnel when:

-The power supply cord or the plug has been damaged; or

-Objects have fallen,or liquid has been spilled into the appliance; or

-The appliance has been exposed to rain; or

-The appliance dose not appear to operate normally or exhibits a marked change in
performance; or

-The appliance has been dropped, or the enclosure damaged.

Operating

SPECIFICATIONS

XLR-F-JACK unbalanced link

1

2

3

LINK 3 to 1

GROUND

SIGNAL

SLEEVE

TIP

XLR-M-JACK unbalanced link

LINK 3 to 1

1

2

3

GROUND

SIGNAL

TIP

SLEEVE

1010

Bandwidth

20 Hz to 20 kHz, 0/ 0.5 dB

+5 Hz to -90 kHz, 0/ 3 dB

Ref.: 4 dBu, 20 Hz to 20 kHz, unweighted

Stereo Mode:

93 dB

94 dB

95 dB

94 dB

90 dB

106 dB, unweighted

Frequency Response

Dynamic Range

High Output

High-Mid Output

Mid Output

Low-Mid Output

Low Output

Signal to Noise Ratio

93 dB

88 dB

Mono Mode:

PERFORMANCE

INPUT

XLR

Electronically servo-balanced, RF filtered

Balanced 50k Ohms, unbalanced 25k Ohms

22 dBu typical, balanced or unbalanced

40 dB, typically 55 dB at 1 kHz

OUTPUT

Connectors

Electronically servo-balanced, RF filtered

Balanced 60 Ohms, unbalanced 30 Ohms

+20 dBm balanced/unbalanced

Connectors
Type
Impedance

Impedance
Max. Output Level

Type

XLR

Max. Input level

CMRR

Limiter Off

0.04%

High to Low:
High to Mid:

Mid to Low:

Interchannel Crosstalk

THD & Noise

Limiter On

93 dB
94 dB
95 dB

0.5