Tascam FOUR-TRACK MASTERING DECK 34B Manual

							alignment controls.
This includes tapes
recorded at 7.5 ips or
15 ips speeds, using
NAB or IEC equaliza-
tion, or on 7.5 or 10.5 
reels. Rear panel
inputs and outputs
readily interconnect the
TASCAM 34B with a
wide array of studio
gear: mixing consoles,
video editing suites,
multi-image presenta-
tions and other
recorders.
Intuitive
Operation
Speeds
Recording & Editing Sessions
A straightforward, no-nonsense design makes setting up
the TASCAM 34B simple: spool up a reel, calibrate the VU
levels for up to four tracks with your source, and roll tape.
Input and output dials for each track allow you to perform
critical gain-staging functions with ease. Bright, color-cod-
ed LEDs report record-ready status for each track, and
whether they’re set up to  accept MIC or LINE level  input.
Input and Output select switches for INPUT, SYNC and
REPRO, also augmented by LED status indicators, make
monitoring, alignment and mixdown simple and quick. And
the 34B features a complete headphone center/mono
monitoring capability — with a front-panel headphone jack
and 4-button track selector, you can comfortably monitor
whatever combination of tracks you need, without affecting
the output calibration.
FOUR-TRACK MASTERING DECK
page 1 of 3
A Production Workhorse
Every studio or production facility needs a reliable,
clean-sounding 4 track reel-to-reel multitrack deck.
Whether it’s for mastering audio recordings, record-
ing radio broadcasts, radio spots, laying down video
soundtracks, or multi-image production and presen-
tations. The requirements are almost always the
same: a serviceable, hard-working deck that will
stand up to the daily grind, delivering faithful
reproductions every time.
The TASCAM 34B is a high-performance machine,
combining a rugged precision transport and excep-
tional audio electronics with a complement of
performance features which meet and exceed
the demands of the modern studio environment.
Adaptable To The
Job At Hand
The TASCAM 34B enables
you to connect, interact and
work in tandem with a full
range of related studio equip-
ment and accepted audio
standards. Any 1/4 tape can
be edited on the TASCAM
34B, thanks to its responsive
10 1/16 (256mm)
6 11/16 (170mm)
21 3/8 (543mm)
20 9/16 (522.5mm)17 1/2 (444mm)
16 1/8 (410mm)
REMOTEDBX UNIT
CONTROL
SIGNALPUNCH
IN/OUT
REMOTE43214321
LINE IN
OUTPUT
MIC
ATT
MIC0 200 200 200 20
RCA jack output allows you to 
easily make reference cassette tapesRC-30 footswitch 
connects here
MIC attenuator switches can put a
20 dB pad in hot track inputs
1/4 MIC IN jacks accepts 4
different inputs Optional DX-4D unit
plugs into this port LINE IN input jacks accept stereo 
input from other audio equipment
Rear Panel-34B
34B 
						

							VU2010753
3 0
REW F FWDSTOP PLAY REC
PAUSE
IIIIIIIII
INPUT
IIIIIIIII12345
6
7
8
9
MIN MAXOUTPUT
IIIIIIIII1 2 345
6
7
8
9MIN MAX
POWER REELSPEEDEDIT CUE PITCH CONTROL
PHONES SELECT
PHONES12 34
–+
34B
ZEREO RETURN RESET
VU2010753
3 0
INPUT
IIIIIIIII12345
6
7
8
9
MIN MAXOUTPUT
IIIIIIIII1 2 345
6
7
8
9MIN MAX
INPUT SELECT MIC/LINE12 34
VU2010753
3 0
INPUT
IIIIIIIII12345
6
7
8
9
MIN MAXOUTPUT
IIIIIIIII1 2 345
6
7
8
9MIN MAX
FUNCTION SELECT12 34
VU2010753
3 0
INPUT
IIIIIIIII12345
6
7
8
9
MIN MAXOUTPUT
IIIIIIIII1 2 345
6
7
8
9MIN MAX
OUTPUT SELECTINPUT SYNCREPRO
1234
Reel Tables and hub adaptors 
use 7 or 10.5 reelsShut off arm interrupts power 
in the event of tape breakage
Choose from 15 ips and
7.5 ips tape speeds 4-digit reference counter
Zero Return and 
Counter Reset buttons
Fine tune tape speed with
±12% pitch variation control
Tape transport 
controls Independent input/output 
level for each track
Separate VU meter 
for each track
34B
FOUR-TRACK MASTERING DECK
page 2 of 3
Front Panel-34B
For editing, the TASCAM 34B offers several features that
reduce time jogging back and forth for splice points. A
manually adjustable CUE arm lets you listen to playback,
even during fast forward, to quickly locate editing points.
Dump Edit transport mode enables you to effortlessly edit
a tape and listen for the end of a segment without tedious
manual searching and “tape spilling”. And the Zero Return
button adds a handy, search-to-cue autolocator you can
use during playback to easily find the beginning or end of
an editing point.
For a high-quality 4-track reel-to-reel  recorder that
addresses the specialized requirements of audio produc-
tion and presentations, look no further than
the TASCAM 34B.
• Reel Tables and hub adaptors facilitate use of 7 or
10.5 reels
• Choose from 15 ips and 7.5 ips tape speeds
• Fine tune tape speed  with ±12% pitch variation
control
• Logical, intuitive tape transport controls
• LED supported INPUT, OUTPUT and
FUNCTION  controls keep you in control
of hectic recording  sessions
• Independent input/output  level for each track
• Separate VU meter for  each track
• 4-digit reference counter
• Zero Return and counter  reset buttons  combine
to offer single-point  autolocator
• Shut off arm interrupts  power in the event
of tape  breakage
• 1/4  MIC IN jacks accept  4 inputs from
recording consoles, video equipment
and more. This also  allows optional
direct mic input for  multi-image
presentation to talk in sync or over
pre-recorded material.
• MIC attenuator switches
can put a 20 dB pad on
hot track inputs
• LINE IN input jacks accept
stereo input from audio
equipment
• Use the optional RC-30
footswitch, connected here,
to perform hands-free
punch in/out
• Utilize dbx Type I noise
reduction by plugging the
optional DX-4D unit into
the dbx portSPECIFICATIONS
MECHANICAL CHARACTERISTICS
Tape: 1/4 inch, 1.5 mil low noise,
high output
Track Format: 4-track, 4-channel, track width,
0.036 inch
Reel Size (max): 10.5 inch, NAB hub
Tape Speeds: 15 ips (38 cm/s) and 7.5 ips
(19 cm/s);
Variable ±12%
Speed Accuracy
1):±0.8% deviation
Wow and Flutter1):
   15 ips:±0.06% peak
(DIN/IEC/ANSI weighted)
±0.1% peak
(DIN/IEC/ANSI unweighted)
±0.05% RMS
(JIS/NAB weighted)
±0.07% RMS
(JIS/NAB unweighted)
   7.5 ips:±0.09% peak
(DIN/IEC/ANSI weighted)
±0.12% peak
(DIN/IEC/ANSI unweighted)
±0.07% RMS (JIS/NAB weighted)
±0.09% RMS (JIS/NAB unweighted) 
						

							Playback, both
Sync/Reproduce Heads:2)
   15 ips: 40 Hz to 22 kHz ± 3dB
   7.5 ips: 40 Hz to 20 kHz ± 3dB
Total Harmonic
Distortion (THD)
3): 0.8% or less at 1,000 Hz, 0 VU,
250 nWb/m
Signal to Noise Ratio
3): At a reference of 1 kHx,
at 13 dB above
0 VU, 1,116 nWb/m
   15 ips: 68 db A weighted (NAB),
60 dB unweighted
   7.5 ips: 66 db A weighted (NAB),
58 dB unweighted
92 dB A weighted (NAB),
with dbx*
82 dB unwieghted, with dbx
Adjacent Channel
Crosstalk (Overall):
3)
   Better than 50 dB down at 1,000 Hz, 0 VU
Erasure: Better than 65 dB at 1 kHz,
+10 VU reference
Headroom (Record amp): 25 dB or more (1,000 Hz, 0 VU)
Connectors:
   Line inputs and outputs: RCA jack
   Mic input: Phone jack (Tip-Sleeve)
   Remote control: Multi-pin jack
   Punch in/out remote: Phone jack (Tip-Sleeve)
   dbx unit: Multi-Pin jack
Power Requirement: 100/120/220/240 V AC,
50/60 Hz, 70 W
(General Export model)
120 V AC, 60 Hz, 70 W
(USA/Canada model)
220 V AC, 50 Hz, 70 W
(Europe model)
240 V AC, 50 Hz, 70 W
(UK/Aus model)
Note: In these specifications, 0 dBV is referenced to 1.0 volt.
Actual voltage levels are also given in parenthesis.
To calculate the 0 dB = 0.775 Volt reference level (i.e., 0
dBm in a 600-ohm circuit), add 2.2 dB to the listed dB value;
i.e., -10 dB re: 1 V = -7.8 dB re: 0.775 V
1) Specifications determined using TEAC Test Tape YTT-
2004/YTT-2003
2) Specifications determined using TEAC Test Tape YTT-
1004/YTT-1003 (NAB equalization), YTT-1004/YTT-10434B
(IEC Equalization)
*dbx is a registered tradmark of AKG Acoustics, Inc.
Specifications and features subject to change without
notice or obligation.
Fast Wind Time: 90 sec. or less
(10.5 inch reel, 2,400-ft tape)
Start Time: 0.8 sec. to reach standard
Wow and Flutter
Capstan Motor: FG (frequency generator)
DC servo motor
Reel Motors: Slotless DC x2
Head Configuration: 1 erase, 1 record/sync, 1 reproduce
Tape Cue: Manual
Weight: 49 lbs (22 kg) net
ELECTRICAL CHARACTERISTICS
Line Input:
   Input impedance: 50 kohms, unbalanced
   Maximum source
   impedance: 2.5 kohms
   Nominal input level: -10 dBV (0.3 V)
   Maximum input level: +18 dBV (8.0 V)
   Nominal input
   source impedance: 1 kohm
Mic Input:
  Source impedance: 10 kohms or less
   Input impedance: 10 kohms, unbalanced
   Nominal input level: -60 dBV (1 mV)
   Maximum input level: -3 dBV (700 mV), with mic ATT
(20 dB) engaged
Line Output:
   Output impedance: 1 kohm, unbalanced
   Minimum load
   impedance: 10 kohms
   Nominal load
   impedance: 50 kohms
   Nominal output level: -10 dBV (0.3 V)
   Maximum output level: +18 dBV (8.0 V)
Headphone output: 100 mW maximum at 8 ohms
Bias Frequency: 150 kHz
Equalization: NAB (USA/Canada/General Export)
3180 + 50 msec.
IEC-1 (Europe/UK/Australia)
¥ + 35 msec.
Record Level Calibration: 0 VU reference; 250 nWb/m tape
flux level
Frequency Response:
Overall:
3)
   15 ips: 40 Hz to 22 kHz ± 3dB (at 0 VU)
40 Hz to 22 kHz ± 3dB (at -10 VU)
   7.5 ips: 40 Hz to 16 kHz ± 3dB (at 0 VU)
40 Hz to 20 kHz ± 3dB (at -10 VU)
34B
FOUR-TRACK MASTERING DECK
page 3 of 3
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