DR. Z Amplification JETTA User manual
JETTA
Manual
Model: ZA-49
www.drzamps.com
Important Safety Instrucons
1) Read these instrucons.
2) Keep these instrucons.
3) Heed all warnings.
4) Follow all instrucons.
5) Do not use this apparatus near water.
6) Clean only with dry cloth.
7) Do not block any venlaon openings. Maintain at least 3 feet of distance around all sides of amplifier.
Do not block any venlaon openings with items such as newspapers, tablecloths, curtains, etc.
8) Do not install near any heat sources such as radiators, heat registers, stoves, or other
apparatus (including amplifiers) that produce heat.
9) Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug
has two blades with one wider than the other. A grounding type plug has two blades and a third
grounding prong. The wide blade or the third prong are provided for your safety. If the provided
plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10) Protect the power cord from being walked on or pinched parcularly at plugs, convenience
receptacles, and the point where they exit from the apparatus.
11) Only use aachments/accessories specified by the manufacturer.
12) Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold
with the apparatus. When a cart is used, use cauon when moving the cart/apparatus
combinaon to avoid injury from p-over.
13) Unplug this apparatus during lightning storms or when unused for long periods of me.
14) Refer all servicing to qualified service personnel. Servicing is required when the apparatus
has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or
moisture, does not operate normally, or has been dropped.
15) Avoid placing any liquids on or near the amplifier that may splash or drip such as those contained in
boles, cans, glasses, etc.
*Dr Z amplifiers are capable of producing very high sound pressure levels which can cause temporary or
permanent hearing damage.
*If any screw that is actually on the amp chassis needs to be replaced contact Dr Z Amps for the proper size.
Screw size is crical for inner chassis clearances.
This symbol warns the user of dangerous voltage levels localized within the enclosure.
This symbol advises the user to read all accompanying literature for safely operang
the unit
With the JETTA, Dr. Z aimed to capture a unique sound suited for any level of guitarist, from amateur hob-
byist to professional player at a price that would turn heads. From painstakingly auditioning guitar after
guitar, tweaking, adjusting, and coaxing out the best tones from each model, Dr. Z molded the JETTA.This
amp was engineered to provide an articulate and detailed platform for any guitar, be it vintage single coil
or hotrodded humbucker. Notes seemingly leap from the fretboard and chords are reproduced with
remarkable clarity and sustain.The JETTA produces the true sound of your guitar without compromise.
Starting with a pair of 7591 power tubes at its heart, the JETTA’s signature sound is one of near hi-fi accu-
racy with a soundstage far larger than its small package would belie.The circuit topology provides a
streamlined, effective signal path from guitar to speaker: a volume knob to adjust the gain and saturation,
a single tone knob to quickly adjust for any guitar you plug in, and an attenuator-like master volume knob
provides control at any volume level, with no loss of tonal integrity, detail, or bandwidth. Don't let the
simplicity of the JETTA fool you. Plug in a guitar and you won't find yourself nudging the tone knob much
shy of noon to find that sweet spot.Trust us, we have tried it; sonic bliss is a simple recipe!
The JETTA’s 30 watts provides plentiful clean headroom for the player with even the most robust pedal-
board, yet it’s able to grind out thick overdrive at a controllable volume level. For those players that prefer
achieve tube distortion from the JETTA, we have included the stellar Metro Zero-Loss FX loop circuit to
retain signal integrity through any path of modulation, delay, or reverb effects.
Despite being the most affordable amp in the Dr. Z line, no corner was cut, no exception was made; the
JETTA is hand-wired in Cleveland, OH with the premium components (including Jupiter caps, Heyboer
power transformer, and Triad output transformer) used in all of our models.The JETTA comes in a head cab
or our ultra-resonant, ultra-lightweight studio 1×12 cabinet, loaded with a UK-made Celestion H30, weigh-
ing a portable 34lbs.
General Informaon
Power Output 30 was
Output Tubes 2 - 7591 (cathode biased)
Preamp Tubes 2- 12AX7
Recfier 1 - 5AR4
Controls Volume, Tone, Master
Speaker Outputs 8 Ohm Output
Other Metro Zero-Loss FX Loop
Configuraons Head, 1x12 Studio Cab (w/ Celeson H30 speaker)
Colors Black with Z Wreck Grill Cloth, White Piping
Dimensions Head: 19” W, 9 3/4” H, 9 1/2” D; 25 lbs.
& Weight 1×12 Studio Combo: 19 ¼” W, 19 ½” H, 10 ½ ” D; 34 lbs
Specifications:
1 2 3 4 5 6 7
1. Input: Input jack for your guitar.
2. Volume: Controls the volume of the input signal. Set low for clean (before 12:00), high for distoron (past 12:00).
3. Tone: Controls overall tonal range. Counter-clockwise is a dark, smooth tone, emphasizing the fundamental note.
Turning the knob clockwise adds treble, and increases the harmonic content.
4. Master: Controls the overall volume of the amp.
5. Stand-By: Leave in off posion for 1 minute when powering up the amp. Turn on for play. Place in off posion for
extended break periods.
6. Power: Switch up to turn on amplifier. Switch down to turn off amplifier.
7. Power Indicator: Lights up when power is switched on. If bulb fails replace with type T47.
FRONT PANEL
REAR PANEL
8. AC Inlet: (Class I Wiring). This device is used for disconnecon from power mains and must remain readily
opearable. The power indicator light does not indicate connecon to power mains. The power cord must be
disconnected to disconnect amplifier from power mains.
9. Fuse: The fuse protects the amp from electrical faults. Replace only with the same rang and type stated
below fuse holder (2A 250v SLO BLO). If the amp repeatedly blows the fuse contact your dealer or Dr. Z Amps.
10. Speaker Jack: Plug in the 8 Ohm speaker here. Always have a load connected to your amp.
11. Send Jack: This will send the signal from the amp to the “in” of your effects chain. It can also be used as a
line-level out to send the preamp signal to an external signal chain without interrupng the operaon of the
amp.
12. Return Jack: Plug the “out” of your effects chain to return the signal back to the amp.
8 9 10 11 12
MADE IN USA
MODEL: ___________________
SERIAL NUMBER: ___________
INPUT VOLTAGE: ____________
Dokument -Name TT.MM.JJJJ 1 of 1
Document:
CE –ZA-49
Manufacturer:
Dr. Z Amplication
17011 Broadway Ave.
Maple Heights, OH 44137 -3407
USA
We declare that the designated product (s)
DR. Z JETTA
is/are in conformity with the European Directives:
2014/30/EU EMC Directive of 26 February 2014
20 11/65/EU
2014/35/EU
RoHS Directive of 8 June 2011
Electrical equipment designed for use within certain voltage limits
This declaration certies compliance with the indicated directives but implies no warranty of
properties. The safety instructions of the accompanying documentation shall be observed.
This declaration of conformity is issued under the sole responsibility of the manufacturer.
Issuer:
Dr. Z Amplication
17011 Broadway Ave.
Maple Heights, OH 44137 -3407
USA
Place, date: Maple Heights, OH USA , 01.OCTOBER.2019
Legally binding signature:
M.D. Zaite, General Manager, Dr. Z Amps
EC/EU Declaration of Conformity
Dr Z Amps 17011 Broadway Ave. Maple Heights, OH 44137 USA
DECLARATION OF CONFORMITY
We, Dr Z Amps, declare, taking this declaration under our total responsibility, that guitar amplifier
model JETTA (ZA-49) is in conformity with EN 55013, EN 61000-3-2, EN 61000-3-3, and EN
55020 in accordance with the Directive 2006/95/EC of 12 December 2006, even more declaring
that the CE marking was affixed in the year 2011.
10-1-zzz2019
______________________________________________
Michael Zaite, General Manager Dr Z Amps
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