Superior Bass AMPLIFICATION
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The sheer physical force of a low-
frequency impulse. The breathtaking
warmth of a tube power amp. The ultra
precise response of a high-end studio
device. In a nutshell, superior tone and
touch are what Quantum™ bass amps are
all about. Nothing less will do.
An unprecedented union of classic and
innovative technologies has birthed a new
breed of bass amp. And it brings a hitherto
unimagined measure of musicality, tonal
authority and portability to the working
bassist.
OR
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Technol
THE DynavalveTM Power
amp Technology
The Preamp Technology
Seasoned players know the deal: 100 tube-
driven watts simply sound louder than
100 solid state-powered watts. The reason
for this is that tube power amps’ complex
dynamic properties enhance audio signals
with transients. These added frequencies
enrich the spectrum, making each note
more concise, more explosive, and louder.
Hence, signal content is decisive in
Quantum™ amps’ inputs feature the
Tube Touch Circuit™. Extraordinarily
saturation-resistant, this circuit makes the
amp remarkably responsive to the players’
touch.
Transient
characteristics of:
Another wonderfully practical feature
is the Tube Growl knob that serves to
dial in sweet-and-soulful sounding
compression and tube saturation effects.
It sweeps smoothly from subtle to strident
– and all points in between.
determining the perceived volume, touch
and response – the very “feel” of an amp.
Solid-state power amps
Though tubes are influential, tube power
amp circuits have a far more formative
hand in shaping these audio phenomena.
With this fact in mind, the engineers
who masterminded the Quantum™
series created a 21st century original - the
world’s first tubeless power amps with
totally tube-driven response. A quantum
leap in performance, the patent-applied-
for Dynavalve™ technology delivers
better tone, greater sound pressure and a
mightier punch to satisfy even the most
discerning bass player.
Functionality of
conventional
serial EQs
Tube power amps
Functionality of
the parallel EQ
A breed of EQ otherwise found exclusively
in high-end studio gear, the Pure Parallel
EQ™ dramatically reduces undesirable
filter effects, turning the four-band voicing
section into an awesomely effective sound-
sculpting tool. Tweaked specifically for the
bass, it affords easy, intuitive handling and
transcendent audio results.
dynavalveTM power amps
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logies
Speaker Technology
Tuned Resonance™Cabinet
Enhanced HF Neodym
Technology
All Quantum™ combos and cabinets
are loaded exclusively with speakers
featuring Neodym magnets. Not only
does this technology significantly reduce
weight, it also creates a more concentrated
magnetic field that considerably enhances
response.
Many years experience designing, tuning
and manufacturing speaker enclosures
enabled the Quantum™ development
team to build cabinets that – like fine
acoustic instruments - make the most of
resonances. Ingeniously engineered
panels and bracings, as well as the robust,
six-ply Okumé wood (with about half the
weight of standard cabinet woods),
deliver powerful, punchy low-end
projection and finely balanced, crisp
midrange. Because the resonant enclosure
is tuned to radiate uniformly across its
entire surface area, the bass signal can be
localized precisely from any position on
the stage.
These speakers feature integrated HF
systems designed to render the crucial
overtone spectrum with utmost uni-
formity. While the 10" speakers use
parallel membranes (that is a dual cone
design) to this end, the 12" and 15"
woofers feature a fresh new technology.
A machined aluminum cone (Dura
Dome™) renders the voice coil’s high
frequency output. Both of these techno-
logies deliver true response, a wide
pattern of throw, and a rich overtone
spectrum that blends perfectly with the
low and mid-frequencies produced by
the main membrane.
15" duraDomeTM
Neodymium
SPEAKER
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HEAD
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QT 600
The toasty warmth, brawny punch and
intuitive handling of a classic all-tube
tone machine, wed to the flexibility and
precision of a premium studio device:
This combination of qualities makes the
QT 600 the first choice for bassists who
refuse to settle for anything less than the
best.
sweep of the gain spectrum, providing
the perfect platform for launching even
the most propulsive grooves. Powered
by sophisticated parallel EQ technology,
the four-way voicing section spares the
rod to “spoil” the signal, gently tweaking
frequencies for the most effective and
musical sound-sculpting imaginable. Four
pushbutton filters shape the basic tonal
character: Punch emphasizes the low and
high ends without altering level. Bass
Shape attenuates the bottom end, say, to
suppress undesirable stage rumble. Mid
Boost pumps up the mids for muscular
metal tone. HF Character underscores the
shimmering overtones at the top of the
frequency spectrum.
The amp’s mighty heart is a powerhouse
600 watts Dynavalve™ amp. Pumping
out ample power for persuasive perform-
ance in every sonic scenario, it offers
plenty of headroom to stress even the
most fulminate musical accents. The
Tube Growl knob affords total control
over typical tube-driven compression and
saturation, and an impedance selector
matches output power to suit connected
cabinets.
The QT 600’s DI Out balanced is variable,
sending either the instrument’s (PRE)
or the amp’s signal (POST) to the mixing
console.
• 600 watts
• 14,5 kg/32 lbs
• 2.8-16 ohms
The two passive and active inputs are
extremely responsive across the full
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Power x TonE / Weight
This latest-generation bass cabinet
offers top-drawer audio quality in an
astonishingly light package.
Neodym speakers are the pumping heart
of the new Quantum™ PRO cabinets.
Developed in a joint effort with
Eminence®, this technology delivers
faster, more direct and precise response
to the bassist’s touch for more controlled
and musically expressive playing.
All speakers ship with onboard HF
transducer systems: The Dual Cone (in
10" speakers) and DuraDome™ designs
render overtone spectrums unrivalled in
depth, breadth and congruity – sans the
phase and directivity problems commonly
encountered with horns.
Built to withstand the rigors of the
road, Quantum™ PRO cabinets’ robust
plywood, rugged steel grilles, Speakon
connectors and Old World workmanship
ensure years of dependable service for
even the hardest-touring player.
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Can a classic be improved upon?
Certainly, as the QS 810 PRO attests!
Sporting a brand new set of Neodym
loudspeakers, this 8 x 10" cab sounds
fatter, sleeker and fresher.
• 8 x 10"
Neod.-Speaker
• 1800 watts
• 62 kg/137 lbs
• 4 ohms
Qs 81o
PRO
The compact alternative to the 8 x 10" bin:
Its high-performance Neodym speakers
pack the powerful punch of a classic
8 x 10" cab into a far more portable bin.
• 6 x 10"
Neod.-Speaker
• 1350 watts
• 46 kg/101 lbs
• 5.3 ohms
Qs 610
PRO
A well-rounded, very musical soundscape
with wondrously woody mids - this
incredibly light high-performance bin
puts the joy back into and takes the pain
out of bass stacks!
• 2 x 10"/ 1 x 15 "
Neod.-Speaker
• 750 watts
• 34 kg/75 lbs
• 2.8 ohms
Qs 2115
PRO
A state-of-the-art 4 x 10" bass cab, it
pumps out crisp, tight low end, finely
textured mids, and - courtesy of its Dual
Cone Neodym speakers - expansive,
shimmering top end.
• 4 x 10"
Neod.-Speaker
• 900 watts
• 32 kg/70,5 lbs
• 8 ohms
Qs 410
PRO
This ultra compact, extremely light
powerhouse is the perfect complement
to bigger bins and a sweet standalone
solution that delivers professional-class
tone for smaller gigs.
• 2 x 10"
Neod.-Speaker
• 450 watts
• 21 kg/ 46 lbs
• 4/16 ohms
Qs 210
PRO
The perfect partner for the QS 410 PRO
or QS 210 PRO: The earthy low end and
woody mids of its 15" woofer meld with
these models’ 10" speakers’ frequency
spectrum to yield a homogenous and
very musical sonic image.
• 1 x 15"
Neod.-Speaker
• 300 watts
• 23 kg/51 lbs
• 8 ohms
Qs 115
PRO
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Combos
Introducing a new class of bass combo,
this line for the first time unites uncom-
promising sound quality, extraordinary
headroom, intuitive handling and sensa-
tionally low weight.
The Quantum™ Combo series comprises
four models sporting identical preamp
sections featuring an audiophile input
stage with a vast gain range for active
and passive basses, a Punch button for
accentuating low and high end response,
and a highly efficient four-band EQ.
HF Character is another special feature.
When this dual-purpose treble knob is
twisted to the right, it gradually dials in
high-frequency sparkle; to the left, it
works like a classic treble pot. The Tube
Growl knob controls the level of tube
saturation, which serves to compress the
signal and lend it tube-driven punch and
assertiveness.
The rich, fat fundamental sound of
the Quantum™ Combo is powered by
Dynavalve™ technology. This brilliant
power amp circuit’s phase splitter tube is
visible in a bright blue glowing window
on the control panel.
Cordura bags with a pull-out handle
and casters are available as optional
accessories for all Quantum™ Combos.
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QC 310
• 250 watts Dynavalve™
Power Amp
• 1 x 10" Dual Cone
Neodym Speaker
• Parallel EQ
• Effects Loop
• Headphones Out
• 18 kg/40 lbs
With its 250 watts Dynavalve™ power
amp, it ranks among the loudest amps
in the 1 x 10" class. Unrivalled ease of use
makes it the first choice for smart players
on the go.
QC 412
• 400 watts Dynavalve™
Power Amp
• 1 x 12" DuraDome
Neodym Speaker
• Parallel EQ
• Effects Loop
• Headphones Out
• 20 kg/41 lbs
Unparalleled low-end pounce per ounce!
Its 12" Neodym woofer weds the hair-
trigger response of a 10" speaker to the
beefy punch of bigger membranes. Even
in loud bands, it lends bass signals plenty
of oomph to cut through.
QC 415
• 400 watts Dynavalve™
Power Amp
• 1 x 15" DuraDome
Neodym Speaker
• Parallel EQ
• Effects Loop
• Headphones Out
• 24 kg/53 lbs
The big bark of a classic 15" combo, the
assertive bite of a stack, and the light
weight of a practice rig - QC 415 is the
new benchmark for every bass-slinging
scenario.
QC 421
The loudest, punchiest and most
versatile Quantum™ Combo: From
classic picked rock riffs to stinging slap
attack and smooth walking jazz bass, the
QC 421 does it all with amazing aplomb.
And at 29 kg, it is by far the lightest amp
in its class.
• 400 watts Dynavalve™
Power Amp
• 2 x 10" Dual Cone
Neodym Speaker
• Parallel EQ
• Effects Loop
• Headphones Out
• 29 kg/64 lbs
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Technical Data
QC 310
QC 412
QC 415
QC 421
QT 600
Combos/top
Gain Knob
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
600
Mute Switch
Tube Touch Circuit™
Hot Display
x
x
x
x
Fat Display
4-Band Pure Parallel EQ
Punch Switch
x
x
x
x
x
x
x
x
Bass Shape Switch
Mid Boost Switch
HF Character Switch
Tube Growl Knob
Master Knob
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Active
Passive
Tuner Out
Line Out
DI Out, Balanced
EQ, Pre/Post Assignable
Ground Lift Switch
Headphones
x
x
x
x
x
x
x
x
FX Loop
Punch/FX Loop Footswitch
External Speaker
Dynavalve™ Technology
RMS (watts)
x
x
x
x
x
x
x
x
x
x
x
x
250
x
400
400
400
x
Dual Cone Neodymium Speaker
DuraDome™ Neodymium Speaker
Dimensions in cm (WxHxD)
Weight in kg/lbs (approx.)
x
x
50 x 50,5 x 35
17/37
55 x 55 x 35
19,5/43
60 x 62 x 40
24/53
60 x 62 x 40
29/64
55 x 19,5 x 32
14,5/32
QS 810
PRO
QS 610
PRO
Qs 2115
PRO
Qs 410
PRO
Qs 210
PRO
Qs 115
PRO
Cabinets
Speakon In/Out
x
x
x
x
x
x
10" Dual Cone Neodymium
15" DuraDome™ Neod.
Impedance (ohms)
8
6
2
4
4
1
1
8
4
5,3
2,8
750
8
4/16
450
Power Handling (watts)
1800
1350
900
300
Dimensions in cm (WxHxD) 67 x 118 x 41,5 67 x 90,5 x 41,5 67 x 75,5 x 40,5 67 x 60 x 40,5 67 x 41,5 x 40,5 67 x 60 x 40,5
Weight in kg/lbs (approx.)
62/137
46/101
34/75
32/70
21/43
22,5/50
HUGHES & KETTNER
St. Wendel, Germany
Phone. +49 - (0) 68 51 - 905 223
Fax. +49 - (0) 68 51 - 905200
HUGHES & KETTNER INC.
Mt Prospect, USA
Phone. +01 - 800 - 452 6771
Fax.
+01 - 847 - 439 6781
quantum@hughes-and-kettner.com
A Division of
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