AMPEX SERIES 300 TAPE RECORDERS... ..

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WIDE RANGE RECORDING--1- -I-,_----TAPE TRANSPORT""""• Ir ~T~~-

MULTI-CHANNEL/ STEREO VERSIONS-I-,'-.....

- L.-0-L.

i- -I·· - ...•·~
j·····l"-j•Combi uin g ,Ill esscutially Hat
response from 30 to ] 5,000 cycles with a high signal-tonoise ratio, a nd the almost compll.'le freedom from Hutterand wow, results iu master recordi ngs ol' tmsurpassed
quality. And - Ampex Series 300 Recordc•rs con tinue todeliver this ultimate in pC'rformance even a ftC'r manyvears of cnntin uous usP.
Frequency respon se

NAB eq11alization is supplied on
single channel models unless otherwise ordered. M11ltiChannf'l versions arc supplied with cxdusive AME(Ampex Master Er1ualizatio11) and NAB as standard
f'1 1uipnwnt; CC JR C'q11:iliza lic111 can also be ordered. TheAi\,fE curve represents a considcrahle advance in mast<'r
record ing and gives an effective 7 db increase in signalto-noisc ratio over the 2,000 tu 6 ,000 cycle range ... thus
rccl11C"i11g "suhj<·ctivc" tape hiss found in this frcq11ency
range. This lower noise' level is particularly .idvantagcous
in prorluci11g the new 4-traek stcrf'o tapes.

Three equalizations

A11 AB switch allows comparison of inp11t
and tape outp ut hy mca11s of ( 1) a VlJ mC'tcr, (2) hcadpho11cs plugged into the frout panel, or hv ( 3) a li11e
connected to the studio monitor circuit.
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Monitoring·f---.......

L.!,_• •The re(1uirements of theprof"t'ssional rcconli11g market- wherein the ultimate
consumer may get np to the sixth gcucration rC'cord ii1g make it imperat·ive that the mast<'r tape be free from
B11Ltcr and wow. This ca11 on ly he achieved thrnugh LheArnp<·x 300 lkcorders whos,· Autter and wow charac:l<'ristics arc so low as lo hE' pradicaUy eliminated . Evc11\\'hen pyrnm ided through S<'Vf'ra l gc11Na tions, flutter an<lwow me st ill far too insignificant to he audible.

Negligible flutter an d wow~

1••·•-.. ~1---f-I
IMASTER QUALITY AT LOWEST COST--~i1 ., ~ 0 0 . ~. ,~,\\11'1 \•Three precision, heavy duty motors
handle reels up to 14 inches in diameter, tapes up to linch in width ( the Ampex Series 300 are the only recorders that will accmnmodate more than one-half inch tape ).
Flutte1· and wow have been virtually eliminated due torigid unit assembly, carefully designed precision capstan
drive, massive flywheel and longer tape path. Tape skewing is non-existent; starts and stop s are instantaneous.
Tape transport

Controls Record, Start and Stop buttons arc recessed sothat they will not be accidentally pressed; all c:-m be remote controlled. A Fast Start/ Slow Stmt switch allows
the capstan motor to remain in "on" or "standby" p osition.

The rugged construction
and carefully conh·olled fabrication assures uniform characteristics during their exceptionally long life. Ampex
magnetic heads tested after 15,000 to 18,000 operating
hours still meet published specifications in virh1ally everyinstance.
Long-life precision heads

Precision Alignment Ampex Multi-Channel recorders
add an additional element of quality: the precision man11factmc and alignmC'nt of the :M ulti-Channel heads. Theyarc so p erfect, so uniform, that tapes recorded on anAmpex Multi-Channel can be played w ith perfect results
on any other Ampex Multi-Channel anywhere in theworld without phase shift between channels.

_,, ,ca&: ::::: ...

Stereophonic recording The commercial recording industry has adopted three or four clia1111cls as the oplimum
iu master stereophonic recording. Ampex Multi-ChannC'lmodels are finding increasing use among professionals
who wish to eliminate any possibility of the "holc-in-t hcmicldle" effect. The three or four cha111 1el maslN is transferred to a two channel version for commercial release by
mixing the micklle eh:mrwl or channPls w ith the twoouter channels.
Two to eight channel AmpL·x Series 300 Recorders arc
available. Depending upon the number of channels involved, they can be ordered as consoles, or unmounted
for rack or portable installation. An Ampex 300 Recorder,purchased as a single channel version, may later be converted np lo three channels with available kits.
SEL-SYNC* An exclusive Ampex feature that is optionalon any Multi-Channel recorder, SEL-SYNC is a switchingsystem that permits converting any of the rcconl ing heads
to serve as a t emporary playback head, while the others
arc still recording. This permits recording sonncl-onsound, or adding a missing soloist to previously 1Tcorclcd
music, all in perfect synchronization. It is SEL-SYNC on
an 8-channel Ampex Series 300 that has enabled Les Pauland Mary Ford to make the ir world-famous recordi ngs.
Model 300- 2M This is actually a two-c-hanncl machine especially designed to produce a fo ur-track, halfinch, .intermcrliat<· maste r. The master is used on tlw
Ampex 3300 High-Speed Duplicator to produce l/ 1 "4-traek stPrE'o tapes for commercial release.
Single Chann el Version Available as a single channelrPcorder in console, or unrno1111led for rack or portableinstallation, thC' Model 300 is 1rnf'xcclletl as a generalpmvose recorder. They are widely used in radio and professional recording studios throughout the world.
• sEL-SYNC (Selective Sy11cliro11izatio11) TM AMrr,:x con P.

The uncompromising <1uality characteristics . . . both elech·onic and mechanical ... inherent in the Ampex Series
300 result in superiority of performance and exceptionally l.ong,, trouble-free operation, J\fointcnance requirements, servicing needs, ·and out-of-service time a'rc negligible or J1◊n-cxistent. Fo1• mechanical stability . ... rugged,precision manufoctu~·c ... reserve open,iting capacities ...
· and ,vide rnnge recording abil ities , . , ,the Ampe.,'( ·3 00 isthe recorder of preference for heavy, contir1uo11s service.
On :t cost-pcr-h<;>ur basis, the outstanding dependabilityand durability of Ampex recorders m;:ike them the mosteconomical of any recorder made!
Ampex Serie~ 300 Recor~ers are. gu'oranteecf to meet''.,all pvblished ~pecificaticms.

UNCRATED DIMENSIONS ANO WEIGHT~ lSINCU: CONSOlE

I=j~ 300-2
300-3300
FULL TRACK

300-2
STEREO

7.093
TYP.

300-2M.015

SPL. MASTER

STEREODIMENSIONABC

TRANSPORT

24 1/ . "

D19"

10½'

ELECTRONICS

19"

7s/,"

7"

25''•"

26"

36 1/,"

WEIGHTUNCRATED

67 lbs.

1DJ_L
T_j_B:l...c

300-3
3 TRACK

19½ lbs.

.2SO
TYP.

.064

=±E! _L~ rn_L; _L•.002 TOP &BOTTOM

I

L

TYP.

.115
TYP.

r .050 TYP.

SINGlE CHANNELCONSOLE30¼"

195 lb,.

300-4
4 TRACKTWO CHANNELCONSOLE

25 ¼ "

THREE CHANNELCONSOLE

251/. "

26"
26"

164 /1"30¼ "641/a"

301/, "

.015 TOP &j BOTTOM

L .osoTYP.

r ,050 TYP.

_j_f .DIS TOP

L

252 lbs

288 lb,.

NOTE, Multi-Channel Recorde r1 of 4 10 B chonnels moy ~ ,uppl1ed ,n tol'l, ole ond tock comb,notion1, w ith tron~pcut mounted m , ,ngle
cha nnel console o r,d elecrronics in seporole rod.

300-8
8 TRACK& BOTTOMDJEE

DJSAMESAME_ l _E E f _Q84

LL! _LL083
TYP .
__L__LOSO.1soT

SAJ'o\E!

rn;

SAME

rn_j_[-085 TYP.
SAME

fo1s TOP &BOTTOM

Ir.060 TYP.
SAMEIl . _ 070
TYP.

.l90T- ---oso
TYP.

020

SAME

1020 TOP &BOTTOM
r .060 rvP.
& BOTTOM;_LL,I __f .020 TOP

T

115 ips = ±2 db 30 - 15,000 cps
71/, ips = ±2 db 40 - 10,000 cps± 4 db 30 - 15,000 cps

SIGNAL-TONOISE RATIO

Peak record level ta unweighted noise (db) 71/, or 15 ips.
60 db = full lrack
55 db = 2 and 3 track
Peak record leve l defined as highest level at which
overall (input ta output) total rms har monic distortion
does not exceed 3 % when measured on 400 cycle tone.
Noise is measured when erasing signal of peakrecording level in absence of new signal. Thus, bios onderase noise ore incl uded as well as playback amplifier
noise. All frequencies measured from 50 • 15,000 cycles.

FLUTTTER
AND WOWPHASINGCROSS TALKREJECTION
STARTINGTIME
STOPPING TIME
TIMING ACCURACYREWIND TIMECONTROLSI AMPEX I.---All channels in phase when simultaneously recording andplaying bock a mid-frequency range test signal.

Single channel: spe,ed selector switch selects proper NAB
equalization for the given speed.
Multi-Channel: swit,:h on e lectronics panel selects
7.5 NAB, 15 NAB or 15 AME.
CCIR equa lization available on special order.

INPUTS

Single channel: bal,anced or unbalanced + 4VU
b ridging inputs.
Multi-Channel: swit,:h selects low impedance microphone,balanced or unbalanced + 4VU bridging inputs.

OUTPUTS

Single channel: 600 ohm, +4VU, {+4 DBM) balanced
or unbalanced.
Multi-Channel: 600 ,ohm, +svu, l+SDBM) or +4VU,(+4DBM) by restropping, balanced or unbalanced.

POWER INPUTREQUIRED

50 db on standard Multi-Channel models
60 db on 300-2M Special Master
STANDARD MODELS

15 ips = - 2" of lope post heads
7 1/ 2 ips = -1" of tape past heads
0.2 % or ±3.6 sec. for 30 min. recording
1 min. approx. for full 101/," reel {2400 ft.)
Stop, Start, Record - push button, relay operated;
remote control optional.
Normal Play, Fast Forward, Rewind - on selector
switch which may be changed from one mode to anothe rwithout stopping in between. Multi-Channel recorders
hove separate button on e lectronics panel that energizesrecord relay for that channel only. Relay drops out whenStop button is depressed. Operation of Record button
on tape transport actuates record relays on all channels.

Offic es and Representatives inPri nci pal Cities Throughout t he WorldREDWOOD CITY, CALIFORN I A

PREPARED B Y BOLA N O ASSOC!ATE'.S

117 volts, 60 cycles (also available for 50 cycles).
Single channel recoirders require 3 amperes, add 0.5
amperes for each additional channel.

AMPEX 300 SERIES MAGNETIC TAPE RECORDERS

To fu ll speed:
1/ 10 sec. for¼" tape1/2 sec. for½" lopewww.SteamPoweredRadio.Com
B U L LETIN 10'5

Independent record ond playback systems allow tape
to be monitored while recording.

EQUALIZATION

15 ips - less than 0.1 % rms
7½ ips - less than 0.2% rms
All frequencies measured from O • 300 cycles.

Audio Products Division
AMPEX PROFESSIONAL PRODUCTS COMPANY
934 CHARTER STREET •MONITORING

PRIN T E:D IN U . S . A .

.070
TYP.

_j_L

SPECIFICATIONSFREQUENCYRESPONSE.100TYP.

All with in-line heads; dual speed 7 1/, and 15 ips.
300 - single chann,el, full track, ¼" tape width300-2 - two chanm,I, 1/ , " tape width300-2M - two channel, ½" tape width {special headsfor four track masters)
300-3 and 4 - three and four channel, ½" tape width,with o r without SEL-SYNC.

SPECIAL MODELS

300-6 ond 8 - six and eight channel, 1" lope width,with or witho ut SEL-:SYNC. Special heod configurations ond
operating speeds from l'/8 to 30 ips ore also ovailoblc
through the Ampex :Special Audio Products Dept.

MOUNTING

All models up lo three cha nnels available mounted
in consoles, or un mc,unted for rock or portable installa tion.
Four cha nnel to eight channel available in consoleand rock combinati()n, or unca sed .

070
TYP.

300 SERIESMASTER
RECORDERS/REPRODUCERSAMPEX CORPORATIONAUOIO DIVISIONDOMESTIC PRICE LIST
SUPERSEDES ALL PREVIOUS SCHEDULES

EFFECTIVE JUNE 18, 1962

MODEL
300
300-2
300-3
300-3SS
300-45S

DEALER FRANCHISE: MASTER300 SERI ES MASTER TAPE RECORDERS
Unexcelled performance verified by the continued domination of these units in t he professiona l master recordingindustry. Available in single or multi-channel mod els (2 to8 channels), up to three equalizations and o variety ofmounting types. Transport uses three precision, heavyduty motors.
Rigid unit assembly virtually eliminates flutter and wow ;massive flywheel, precision capstan drive a nd long tapepath assure no skewing. Storts and stops instantaneously.
Fast/ slaw start switch permits " an" and "stand-by" cop•ston motor operations; provisions mode for remote control.

Precision head alignment a ssures perfect playback almulti-channe l recordings. Exclusive " Sel-Sync" optionalfeature provides switching ta convert any of the heads toserve a s temporary play back while others are still recording; pe rm its sound•on-sound recording an d other specialeffects. A-B switch allows monitoring by VU meter, headphones plugged into front panel, or by line-connectedstudio monitor circuit. Sel-Sync• only available on units
with J or more channels .
All models available in console or unmo unted configuration.

CHANNEL.~SINGLE

TWO•·......
. ..
.....

".frJ••.,~..

i;;;ii;;;i.
l;l, _r;;,_.

l·il -.c~

THREEwith Sel-Sync*

THREE..
..
D ••··DESCRIPTION•• •~ • •~♦•••• •••~•·...· ·•.
300-3Two Track¼ 11 Tape'!

• ••oo ...._~

300-2

Full Track¼ 11 Tape~~

EQUALIZATION - Standard NAB
only on single channel models;
7½ NAB, 15 NAB, and 15 AME on
multiple channel models.
DUPLICATOR MASTER - For making 4-track copies; used in highspeed duplication - available on
special quotation.
SPECIAL VERSIONS- Tape speeds
from 11/s to 30 ips, special headsand versions with up to 8 channels- available on special quotation.

••- ~~ .

300

300 SERIES
General Information•C •~"'FOURwith Sel-Sync *300-3SSThree Track½ 11 TapeThree Track½ 11 Tape

300-4 WITHOUT SEL-SYNC* available - deduct $400.00 from 3004SS user price.

300-4SSCONSOLE CABINETS

Four Track½ 11 Tape

WITH
ELECT.
SINGLEELECCHANNEL TRONICS HOUSING
RECORDER HOUSING ONLY-3
CABINET - UP TO 3 CHANNELCHANNELSTAPESPEEDS7½7½7½7½7½7½

7½

7½7½

7½15151515151515151515MODELNUMBER

300-U
UNMTD.

300-C
CONSOLE

300-2UUNMTD.

300-2CCONSOLE

300-3UUNMTD.

300-3CCONSOLE

300-3SSU
UNMTD.

300-3SSCCONSOLE

300-4SSU
UNMTD.

300-4SSCCONSOLECATALOGNUMBER

7425-017425-0330902-01

30902-03

30903-01

30903-03

30903-05

30903-07

30904-01

30904-03

565-00565-0830874-01$239S.

$2630.

$3490.

$3815.

$4374.

$4698.

$4800.

$5124 .

$5576.

$5900.

$238.

$375.

$175.

SUGGESTED
USER'S
PRICE

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IC> 1962 AMPEX CORPORATION• T.M. AMPEXLITHO IN U.S.A.-1353-6M-6-62

PROFESSIONAL/ MASTERACCESSORIESAMPEX CORPORATIONAUCIC CIVISIONDOMESTIC PRICE LIST
SUPERSEDES ALL PREVIOUS SCHEDULES:,,.

GENERAL ACCESSORIESEFFECTIVE JUNE 18, 1962

DEALER FRANCHISE:PROFESSIONAL- MASTER

SPECIFICATIONS- USE

DESCRIPTIONACCESSORIES
FOR:3003503000
PR-10CATALOGNUMBER

USER NETPRICE

MIXER, MODEL MX-10 - Four position, two channel mixer, feeds 4 or 2mike and 2 line inputs to either orboth channels.

For PR-10 Series and general use;
unmounted96900-01$395.00

MIXER, MODEL MX-35 - Four position, two channel mixer, feeds 4 or 2
mike and 2 line inputs to either orboth channels.

For 350 and 300 Series and general use;
unmounted

96910-01

395.00Speaker/ Amplifier, unmounted

96975-01

295.00Speaker and Enclosure, only

96980-0 1

120.0040 watt Amplifier, only

96950-01

175.00Portable Case

96960-01

60.00

REMOTE CONTROL - For use with
351 / 352 / 354/ PR-10

Wired (in box with 30' cord)

96510-01

50.00

Panel Type (less cord)

96520-01

42 .00LINE INPUT TRANSFORMERS - For
use with PR-10/ MX-10/ SA-10/ 354/
MX-35

Balanced Bridge

96134-01

14.50

Matching 600 ohm

96134-02

14.50

40 db (PR-10, 354)

96440-01

45.00

60 db (PR-10, 354)

96440-04

60.00

SA-10

96440-03

45.00

820

9.95

4 oz. can

823

1.45

4 oz. bottle

827.95

7½ NAB-15 NAB

96121-019.90

3¾ NAB (Spec. 120 or 200 µsec.l-7½ NAB

96120-019.90

7½ NAB- 15 AME

96122-019.90

7½ NAB - 15 NAB

96111-03

9.90

3¾ (120 µsec)- 7½ NAB

96110-039.90

7½ NAB - 15 AME

96112-03

14.50

3¾ (200 µsec)- 7½ NAB

96114-03

9.90

MODEL 351 - Operation and Maintenance Manual(Furnished with Recorder)

TM-2002A

4.00

MODEL 352 - Operation and Maintenance Manual(Furnished with Reproducer)

TM-2004

3.00

MODEL 354 - Operation and Maintenance Manual(Furnished with Recorder)

TM-2011 B

4.00

MODEL 300 - Operation and Maintenance ManualSingle Channel (Furnished with recorder)

TM-2013

4.00

MODEL 300 - Operation and Maintenance Manual

Multi-Channel (Furnished with recorder)

TM-2005

4.00

3200 SYSTEM - Operation and Maintenance Manual(Furni shed with each unit)

TM-2008

4.00

3300 SYSTEM - Operation and Maintenance Manual(Furnished with each unit)

TM-2007

4.00

...
f;

r--.-J •~. .. ..

···••f' . 1.

IIHIDIII - •;SPEAKER/ AMPLIFIER, MODEL SA-10-40 watt voltage regulated amp withlow distortion at low frequencies has amplifier compensation switch.
(See below for mike preamp.)

MICROPHONE PREAMPS - For usewith PR-10/ 354 and SA-10
HEAD DEMAGNETIZERS-For use withall series
APPROVED CLEANING FLUID use with all series

For

APPROVED LUBRICATING OIL - Foruse with all series

STANDARD ALIGNMENT TAPES (See description and price, Sheet No. 1344-13451

350 SERIES ACCESSORIESMODEL 354 RECORD PLUG-IN EQUALIZERS - (one per channel required)

MODEL 354 REPRODUCE PLUG-IN
EQUALIZERS - (one per channel required)

300 SERIES ACCESSORIES

3000 SERIES ACCESSORIESC 1962 AMPEX CORPORATION

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LITHO IN U.S.A.-1382-6M-6-62