KLD AT100 User manual

KLD Guitar PowerAttenuator
AT100
Manual
Kailing Electronic co.Ltd
http://www.kldguitar.com

Congratulations : on purchasing the Kldguitar AT 100. The AT-100 is KLD
Guitar's high wattage attenuator a dream device that provides full control of the
output level from your amplifier to your spea ers without squashing any of the
dynamic feel and tone you've wor ed so hard to perfect. This totally roadworthy
box connects between your amplifier and either one or two cabinets.
Designed for use strictly with vacuum tube guitar amplifiers, each version of the
AT-100 is optimized for specific impedance. These inductive loads are
frequency-compensated, which means you get the best possible sound for that
impedance spea er and amplifier combination. Plus the AT-100 is no simple
power attenuator. It offers many capabilities that ma e it a great addition to any
tone-hungry player's arsenal.
The AT -100 is also offering a compensate switch for tailoring your sound. The
Bright switch gives you 2 different high-frequency levels so you can compensate
for an overly bright or dull spea er cabinet.
Adjustable Line Out
AT -100 also feature a Line Out, which is adjustable by its own volume control,
giving it a wide range of applications. At higher settings, it can provide enough
signals to drive the input of a separate power amp for slaving. The middle range
of settings is useful for most rac mount effects. And turned most of the way
down, the AT-100's Line Out will drive the instrument input of another guitar
amplifier for extra power and volume.
There are three inds of input impedance of attenuator: 4, 8, 16ohm. please
select right attenuator according to your output impedance of amp and input
impedance of cabinet。
CONTROLS:
·Master Output Control attenuates the output level of a fully cran ed 100-Watt
amplifier all the way down to total silence (used with Input Attenuation Switch
set at -12dB)
·Input Attenuation Switch 3-position (0.0dB, -6dB, -12dB) attenuation for
spea er input
·Compensate Switch 3-position (Off, Bright 1, Bright 2) "brightness" circuit to
compensate for an overly bright or dull spea er cabinet
·Spea er On-Off Switch for headphone-only use or quiet recording using Line
Out jac
·JACK (1/4" phone):
·Line Out
·Input (max. 150 Watts)
·Output
·Head Phones (requires -12dB attenuation)
Input impedances: 4 ohm,8 ohm and 16 ohm
Power Handling: Up to 150 Watts
DIMENSIONS:30cm x 20cm x 20cm (11.8" x 7.8" x 7.8")
WEIGHT: 3.5 g (7.72 lbs)

(NOTE: Cords from amp and to spea ers must be heavy-duty spea er cable with
1/4" phone-type spea er connectors.)
1. LINE LEVEL
Line level adjuster：-20dB-Min.
2. LINE OUT
6.35 Line out jac , connected with recording gear. There is dummy load let
customer record in silence.
3. INPUT
6.35 jac ；Connect a spea er cable from this jac to your amp's spea er out jac .
The impedances of two jac s are same.
4. OUTPUT
6.35 jac ，Connect a spea er cable from this jac to your spea er cabinet. It
is optimal to match your amp spea er out to the external spea er rating. ( ex :
8 ohm spea er out jac on amp with 8 ohm spea er cab.)
I MPORTANT: WHEN USING JUST ONE OF THE SPEAKER OUTPUTS
FROM THE AT100. THE SPEAKER CABINET SHOULD MATCHED SAME
IMPEDANCE AS THE AT 100 .
5. HEADPHONE
6.35 Headphone jac with dummy load.
6. 0dB—6dB—12dB ATTENUATION
0 dB—True Bypass .
-6—6dB attenuation.
-12—12dB attenuation.
7．
．．
．∞- 12 dB ATTENUATION
This is a rotary switch that selects the amount of attenuation .Output signal can
be attenuated from -12dB to silence continuously. The nob wor after No.6
nob turned on -12 dB.
8．
．．
．BRIGHT COMPENSATE
This is a rotary switch that compensates brightness of sound. There are three
steps, please use it with EQ in amp together.
7
1
2 3 6
4
8
5
9

9．
．．
．SPEAKER OUT
OFF- Extern Speaker OFF . Dummy load connected, you can record music by
LINE OUT, or practice guitar by headphone in silence. At this setting, you can
play guitar amp without connecting with spea er.
ON-Extern speaker ON
You can use extern spea er still.