Rane ac22b Operating & Service Manual

ANE
OPERATING / SERVICE MANUAL
ME 60
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microCRAPHIC EQUALIZER
QUICK START
Okay, know-ilall. So you don't n€ed to read the manual- Welldo your mother a favof andjust read this section and you
don't have lo rcad anything €lse. Ev€r.
I look-up is intuitive. Just follow th€ silkscrecned instructions on the rear ofthe unit. All rhree Inputs are wired in parallel
(lhey do ,ol s m); and all three Outprts are wi.cd ;n parallel. Use any ors Input and any or all Outputs. Polarity convention
is pcr IAC/ANSI/AES standards olpin 2 positive, pin 3 negative and pin I ground. The ME 60 does not inverr rhe signal.
tJsc the ground lift (SIC CND) switch on the rear to help eliminate stubborn hum problems.
Set rhc LO CUT and HI CU'l controls as ncccssary to restrict bandwidth. Full frequency rcsponse r€sults from position-
ing them allrhe way to tlre bollon].
Anyonc thmilirr wilh othcr graphic cqualizerc finds the ME 60just as familiar. Setting curves is as easy as it is on all
Ranc graphics thanks to orr innovalive constant Q circuitry. lfyou feel you want more information on setling up your
curves, please see the back page.
There. now was that so bad?
SYSTEM CONNECTION
WhcD fiBl connecting the Mtt 60 to othe. componenls, /cdre /rc POW[R s|/itrh allMtit tlle wt]Iast. Ihis gives you I
chancc 1o makc nristakcs rnd conccl thcnr wilhout danraging your fragile speakers, ears and nervcs.
lNPUl S. All thrcc Inpurs arc wircd in plrallel and are aclively balanced, except the unbalanc€d RCA phono. Each works
cqually well. Choosc sLriclly from a requircd hardwarc ponrt of view, there will be no performance tradc-olfs. Thc wiring
convcntion adhcrcs to Amcrican. Brilish and lfltcrnaltunal stlndards ofpin 2 or tip being hot, pin 3 or ring being rerurn. and
piD I or slccve being signal ground. Unbalanced operalion irvolves using only pin 2 or tip as signal, and pin I or slee!e as
ground. Il is nol necessary to short any inputs to groLrnd itdoesn'thun.it'sjustnotnecessary.Usepinl,ortheshell.fo.
shield ground.
OUTPUTS. Ihe Outpurs mimic the Inputs. Balanced output requires using pin 2 or tip, and ptu 3 or ring for thc signal. lt
docs nol rcquire pin I or signal ground. Thc sisnal cxists differentially between the two balanced leads; ground is not involved.
for hum-iiee systems ground is used only for shielding.
OXPANDING. Exparding and/or daisychaining
lhe Inputs and Oulpuls normally uses the %" jacks. Three parallel Input
connectors allows driving a second signal processor or amplifier without spccial cabling.
SICNAL LEVELS. S'gnal ievcls liom -l0dBV 1() +4dBu arc considered
normal and wiihin range (at least 20dB of
headroonr exists abovc thcse lcvcls). Do not dircctly cotrncct microphones into the ME 60. These rcquire a mic proamp.