Api 527A Compressor Phau Ntawv Qhia

Api 527A Compressor

Taw qhia

API 527A Compressor / Limiter siv nws qhov chaw nrog rau tsev neeg ntawm API VCA raws li compressors, 225L compressor thiab 529, 2500, thiab 2500+ stereo bus compressors. Txhua tus paub txog cov chav no tam sim ntawd yuav nyob hauv tsev nrog 527A. Cov yam ntxwv zoo ib yam rau cov kab muaj xws li "pub rau pem hauv ntej" (Tshiab) thiab "rov qab" (OLD) nce kev txo qis xaiv tau ntawm lub vaj huam sib luag pem hauv ntej, muab kev xaiv "txoj kev qub" lossis "txoj kev tshiab" ntawm compression, rau theem siab tshaj ntawm kev hloov pauv hauv cov teeb liab nce tswj. Qhov "txoj kev qub" lossis txoj kev pub rov qab yog qhov feem ntau ntawm cov tshuab compressors classic siv rau qhov nce tswj Circuit Court. Qhov "txoj kev tshiab" nce kev txo qis yog ntau dua ntawm cov tshiab VCA hom compressors uas tso siab rau RMS detectors rau qhov nce tswj vol.tage. Muaj "SOFT" / "HARD" lub hauv caug hloov rau "ntau tshaj-yooj yim" hom compression uas ua rau lub suab nrov heev, tsis muaj suab nrov lossis lub hauv caug ntse ntse uas qiv nws tus kheej mus rau qhov kev txwv hnyav dua. Lub patented THRUST muaj nuj nqi tuaj yeem hloov mus rau hauv thiab tawm ntawm lub vaj huam sib luag pem hauv ntej ib yam nkaus, siv lub lim ua ntej RMS ntes Circuit Court uas khaws cia qhov punchy hauv qab kawg. Ob lossis ntau dua 527A Compressor / Limiters tuaj yeem txuas ua ke los ntawm DC txuas uas tso cai rau ntau chav nyob ua ke rau kev siv lub tso suab thiab ntau lub suab.Cov zis theem tseem nyob tas li tsis hais txog ntawm qhov pib lossis qhov piv txwv, zoo li "ntau / tsawg" Qab nthab tswj ntawm API 525 Compressor. Qhov no tso cai rau kev hloov pauv nyob yam tsis muaj kev hloov pauv tau pom zoo hauv qib kev pab cuam. 527A Compressor / Limiter ua rau siv 2510 thiab 2520 discrete op-amps thiab nthuav tawm qhov kev ntseeg siab, lub neej ntev, thiab lub suab kos npe uas yog tus yam ntxwv ntawm cov khoom API.

Nta

• Feed-forward los yog feed-back compression
• Nyuaj lossis mos hauv caug compression
• Patented THRUST hloov rau zaus-dependent sab saw tswj
• Tsis tu ncua sib txawv, 31 txoj hauj lwm detented THRESHOLD tswj
• Tsis tu ncua sib txawv, 31 txoj hauj lwm detented RATIO tswj
• Tsis tu ncua sib txawv, 31 txoj hauj lwm detented ATTACK thiab RELEASE tswj
• Kev hloov pauv tsis tu ncua, 31 txoj hauj lwm detented OUT (tso tawm) qib tswj
• 10-seg nce nce / VU meter (GR / Tso zis)
• Overload LED
• Nyob rau hauv hloov nrog mos thiab nyuaj relay bypass
• Suab Circuit Court siv 2510 thiab 2520 discrete op-amps

Tshajview

Lub 527A Compressor muab ib qho kev qhia dav dav ntawm kev tswj hwm:

• THRESHold: Qib uas compression pib (+ 10dB txog -20dB)
• RATIO: Tus nqi ntawm compression thov tom qab qhov pib (1: 1 txog ∞: 1)
• NYIAJ: Lub sij hawm nws siv rau lub compressor teb (1 mus rau 25 milliseconds)
• Tso tawm: Lub sij hawm nws yuav siv lub compressor rov qab mus rau kev sib sau ua ke (.3 mus rau 3 vib nas this)
• OUTput: Phau ntawv tso zis theem (ua-up nce) tswj (-∞ txog +10dB)
• LINK: Ua kom lub DC txuas rau lub tso suab / multichannel ua haujlwm nrog lwm cov 527A & 527 modules
• HOM: TSHIAB (feed-forward) lossis OLD (feedback) nrhiav pom txoj kev topology
• PAUB: HARD lossis SOFT cov lus teb nkhaus ntawm qhov pib ntawm compression.
• THOJ: Patented circuit uas ntxig lub lim ua ntej RMS ntes
• IB/BYP: Nyem rau toggle compression IN lossis tawm lossis tuav kom koom nrog nyuaj bypass (BYP)
• 10-Segment LED Meter: 10-seg LED meter (xaiv tau txo qis lossis qib tso zis)
• Ntsuas: Xaiv qhov nce txo (GR) lossis tso zis (OUT) raws li qhov ntsuas ntsuas
• OV (overload): LED ncov LED (illuminates ntawm +21dBu)

Compressor Tswj

Qhov pib:

• THRESHold: Teem cov qib uas compression pib
• Kev sib txawv tsis tu ncua ntawm +10dB thiab -20dB
• 31-txoj hauj lwm detented rotary lauj kaub kom rov qab tau yooj yim

Piv txwv

RATIO: Teem qhov piv ntawm cov tswv yim thiab cov zis ntau ntau rau cov teeb liab uas poob saum lub teeb THRESHold

• Kev hloov pauv tsis tu ncua ntawm 1: 1 thiab ∞: 1 (x: 1)
• 31-txoj hauj lwm detented rotary lauj kaub kom rov qab tau yooj yim
• Compression nrog RATIOs ntawm 10: 1 lossis ntau dua yog feem ntau suav tias yog txwv

Tawm Tsam & Tso Tawm

Lub sij hawm tawm tsam thiab tso tawm yog tswj los ntawm dual-concentric potentiometer. Lub lauj kaub sab nraud (ntiv nplhaib) tswj lub sijhawm tua thiab lub lauj kaub sab hauv (center) tswj lub sijhawm tso tawm. Txhawm rau kom nkag siab yooj yim ntawm cov kev tswj hwm no qhia nyias hauv qab no.

Tawm tsam

ATTACK: Teem lub sij hawm nws yuav siv lub compressor kom hnov ​​​​mob thaum qib siab tshaj qhov teeb tsa THRESHold

• Kev hloov pauv tsis tu ncua ntawm 1 txog 25 milliseconds (mS)
• 31-txoj hauj lwm detented rotary lauj kaub kom rov qab tau yooj yim

Tso tawm

RELEASE: Teem lub sij hawm nws yuav siv lub compressor kom rov qab mus rau kev sib koom siab nce tom qab theem poob qis dua qhov teeb tsa THRESHold

• Kev hloov pauv tsis tu ncua ntawm .3 thiab 3 vib nas this (S)
• 31-txoj hauj lwm detented rotary lauj kaub kom rov qab tau yooj yim

Tso zis

Tawm: Manual output level control (ua kom nce)

• Kev hloov pauv tsis tu ncua ntawm -∞ thiab +10dB
• 0 = unity nce
• 31-txoj hauj lwm detented rotary lauj kaub kom rov qab tau yooj yim

HOM compressor

Lub 527A compressor tuaj yeem teeb tsa ua haujlwm hauv ob lub voj voog topologies lossis "HOM" uas txiav txim siab qhov twg lub teeb liab uas pub RMS ntes los ntawm:

• OLD: Feed-Back topology: RMS ntes tau txais lub teeb liab tom qab VCA
• TSHIAB: Feed-Forward topology: RMS ntes tau txais lub teeb liab los ntawm ua ntej VCA

TSHIAB (Feed-Forward)

Nyob rau hauv lub compressor pub-forward, RMS ntes ib txwm tau txais nws cov teeb liab los ntawm kev sib cais ntawm cov teeb liab tawm tswv yim. Nrog rau txoj kev no, RMS ntes xa cov teeb liab mus rau VCA uas yog ib qho piv txwv ntawm qhov xav tau compression teeb tsa los ntawm RATIO tswj. Qhov no yog pes tsawg VCA raws li compressors ua haujlwm. Qhov no tuaj yeem ua rau muaj zog compression ntau dua thiab nyuaj, cuam tshuam ntau lub suab.

OLD (Feed-back)

Hauv kev pub rov qab compressor, RMS detector tau txais nws cov teeb liab los ntawm qhov tso zis ntawm qhov nce txo cov cuab yeej (VCA). Qhov no yog qhov qub API 525, 1176 hom, thiab 660 hom compressors ua haujlwm. Qhov no yields ib tug smoother, softer, pob tshab suab.

Lub compressor circuit topology raug xaiv siv HOM hloov.

HOM: Toggle xaiv lub compressor circuit topology

• TSHIAB: Koom nrog kev pub-forward topology
• qub: Koom nrog feed-back topology

Compressor KNEE

KNEE muaj nuj nqi txiav txim siab cov duab ntawm 527A compressor cov lus teb nkhaus ntawm qhov pib ntawm compression.

Lub 527A compressor muaj ob (2) KNEE teeb tsa uas tswj cov compressor hloov mus rau hauv compression:

• HARD: Cov lus teb nkhaus nkhaus
• SOFT: Rounded teb nkhaus

HARD KNEE Compression

HARD: Cov lus teb nkhaus nkhaus

• Tam sim ntawd pib ntawm compression (sudden hloov mus rau qhov sib piv)
• Ntau txhoj puab heev thiab pom

SOFT KNEE Compression

SOFT: Rounded teb nkhaus

• Maj mam pib ntawm compression (fade-nyob rau hauv mus txog qhov teeb meem)
• Zoo ib yam li "poob-yooj yim" hom hauv caug
• Ntau pob tshab

Lub hauv caug ntawm lub compressor raug xaiv siv KNEE hloov.

KHOOM: Teem kom xaiv cov lus teb nkhaus ntawm qhov pib ntawm compression

• HARD: Cov lus teb nkhaus nkhaus

THOV®

527A compressor suav nrog API's patented THRUST Circuit Court uas tuaj yeem hloov mus rau hauv lossis tawm raws li xav tau. Qhov no tso lub THRUST lim ua ntej RMS ntes uas txo cov compressor cov tshuaj tiv thaiv rau cov ntsiab lus tsawg zaus. Qhov tshwm sim yog qhov pom tau tias nce ntawm punch thiab tsawg zaus, tab sis lub teeb liab sib npaug compressed. Nws yog "me ntsis ntxiv punch" hloov! Lub patented THRUST Circuit Court tau siv ntau xyoo nyob rau hauv lub npe nrov API 2500 Stereo Compressor, tus tshiab 2500+, ATI Paragon thiab Paragon II consoles, nrog rau Pro6 Input Strip. Qhov Circuit Court no tso lub lim rau pem hauv ntej ntawm RMS ntes nrog txoj kab nqes ntawm 10dB ib xyoo caum (-3dB / 8va), uas yog qhov thim rov qab ntawm lub suab paj nruag lub zog nkhaus. Hauv acoustics, lub suab paj nruag liab yog siv los sib npaug ntawm lub zog piv rau zaus ntawm lub suab spectrum, vim lub suab yuav tsum muaj lub zog qis dua li lub zog ntau zaus kom suab zoo rau koj lub pob ntseg. Hauv cov cuab yeej Hi-fi, siv "LOUDNESS" contour
sib npaug cov suab paj nruag nyob rau theem qis kom nws suab raug. Txawm hais tias nrog qhov nkhaus no, tseem muaj ntau yam ntawm cov ntaub ntawv tsawg zaus piv rau cov ntaub ntawv ntau zaus hauv lub suab teeb liab txoj kev. Thaum lub teeb liab tau pub rau hauv RMS ntes, tus ntes yuav ua cov teeb liab rau hauv DC tswj voltage raws li cov suab nrov tsawg zaus, ua rau muaj kev tswj hwm voltage that favors the low frequencies of the signal, causing pumping and a loss of punch. Sometimes, this is not desirable. By engaging the THRUST ® switch, this inverse filter is placed in front of the RMS detector, evening out the energy by lowering the energy in the low frequencies and increasing the energy in the high frequencies, so each octave has the same energy instead of each octave having half the energy as the one lower. This creates a unique compression effect that still reduces the overall gain, but the sound is much more punchy and the signal actually sounds less compressed. With THRUST engaged (IN) gradual, linear filter, down 15dB at 20Hz and up 15dB at 20kHz is applied
mus rau lub teeb liab pub rau RMS ntes, sib npaug ntawm lub zog mus rau hauv RMS ntes. Qhov no txo ​​qis txoj kev ntau zaus compressed. Qhov sib txawv zuag qhia tag nrho yog qhov pom ntawm qhov punch thiab qis zaus, tab sis lub teeb liab sib npaug compressed. Nws yog "me ntsis ntxiv punch" ua haujlwm.

Lub THRUST Circuit Court tuaj yeem koom nrog kev siv THRUST hloov.

THOV: Teem kom koom nrog THRUST muaj nuj nqi

• IN: Ntxig lub THRUST lim ua ntej RMS ntes
• Tawm: Tsis muaj lim ua ntej RMS ntes

Compressor Bypass (IN)

Lub 527A yog nruab nrog relay-raws li, nyuaj-wired IN hloov thiab nyuaj bypass. Ib ntus nias ntawm IN hloov mus rau IN muaj nuj nqi. Thaum lub compressor nyob hauv, lub compressor ua suab thiab coj li qub. Qhov no yog qhia los ntawm IN hloov tau illuminated nyob rau hauv daj. Thaum IN yog disengaged (hloov tsis illuminated), tswj voltage teeb liab raug tshem tawm thiab cov teeb liab tso tawm tau tuav ntawm 0dB, tab sis lub suab txuas ntxiv mus dhau ntawm 527A hluav taws xob yam tsis muaj qhov nce ntxiv. Nias-thiab-tuav lub IN hloov mus hloov BYPass tswj. Thaum lub compressor nyob rau hauv BYPass, lub hard-wired bypass yog koom thiab IN hloov illuminates nyob rau hauv liab. Nyob rau hauv lub xeev no, lub suab INPUT teeb liab yog xa ncaj qha mus rau lub suab OUTPUT connectors thiab tsis dhau los ntawm 527A electronics.

IN/BYP (Bypass): Nias kom koom nrog lub compressor lossis nyuaj-wired bypass

• Hauv: Nias kom koom nrog lub compressor hauv txoj kev teeb liab (hloov illuminates)
• Tawm: Nias kom tshem tawm lub compressor hauv txoj kev teeb liab (hloov unlit)
• BYPass: Nias thiab tuav kom koom nrog cov relay-based nyuaj bypass (hloov illuminates hauv liab)

Nco tseg: Thaum 527A raug kaw, nws tau tuav hauv lub xeev BYPass. Thaum lub compressor tsis nyob rau hauv lub xeev BYPass (liab BYP LED tsis illuminated), lub 527A coj ib txwm.

DC Control Voltage Link

Lub 527A compressor tuaj yeem txuas nrog lwm cov 527 thiab 527A compressors rau lub tso suab thiab ntau cov ntawv thov. Lwm yam VPR Alliance compressors uas siv qhov txuas rov qab tuaj yeem txuas nrog 527A compressors rau lub tso suab thiab ntau cov ntawv thov. Thaum txuas ua ke thiab cov LINK hloov pauv tau koom nrog, DC tswj voltages los ntawm tag nrho cov units yog summed ua ke. Qhov no ua rau tib qhov kev hloov pauv tau siv rau txhua qhov compressors. Txawm hais tias qhov no tsis yog "Xib Hwb / Tus qhev" kev teeb tsa, qhov pib, Lub Sijhawm Tawm Tsam / Tso Tawm, thiab Kev Sib Tw ntawm txhua chav yuav tsum raug teeb tsa rau tib tus nqi txhawm rau tiv thaiv ib qho channel los ntawm kev tsim ib qho kev tsis txaus ntseeg rau qhov kev tswj hwm summed vol.tage

LINK: Teem kom koom nrog DC tswj voltage summing nrog lwm units

• Hauv: Activates DC tswj voltage summing ntawm no unit

CEEB TOOM: LINK kev ua haujlwm ntawm 527A TSIS ua haujlwm raws li lwm tus tswv / qhev txuas txuas txuas ua ke ua, qhov twg tus tswv tsev tswj hwm los ua tus tswj hwm rau ob chav nyob thaum tus qhev chav tswj tsis taus. Hloov chaw, thaum txhua tus ntawm 527As 'LINK keyboards raug nias, lawv yuav pab txhawb lawv cov kev tswj cov cim kom tau SUMMED rau hauv cov tsheb npav sib txuas thiab txhua qhov ntawm lawv lub vaj huam sib luag pem hauv ntej yuav cuam tshuam rau compression ntawm lwm yam txuas 527A lub suab teeb liab. Cov chav nyob uas muaj qhov hloov pauv LINK hauv OUT txoj haujlwm tsis cuam tshuam. Teem lub LINK hloov mus rau "IN" txoj hauj lwm txuas 527A's compression DC side chain circuitry rau DC summing bus ntawm 500 series module motherboard. Qhov no tso cai rau txhua tus naj npawb ntawm 527A compressors rau "LINK" lawv cov kab txuas sab hauv rau hauv lub tsheb thauj mus los rau kev ua haujlwm xws li tswj cov duab tso suab lossis ib puag ncig cov duab thaum compression, lossis cuam tshuam rau ib lub suab teeb liab nrog rau lwm tus yam ntxwv dynamic. Pem hauv ntej vaj huam sib luag tswj uas cuam tshuam rau DC sab saw teeb liab (thiab yog li ntawd cov compression tsis ntawm TAG NRHO qhov txuas), suav nrog THRESHold, ATTACK, RELEASE, HARD / SOFT, NEW / OLD, THRUST thiab RATIO tswj. Kev kho ib qho ntawm cov kev tswj hwm no yuav cuam tshuam rau lub teeb liab uas yuav raug xa tawm thiab suav nrog LINK hloov, thiab cov kev hloov pauv uas cuam tshuam rau txhua qhov txuas 527A's. DC txuas tsheb npav muaj nyob rau hauv Lunchbox thiab khi los ntawm channel rau channel nrog xoom ohm jumpers uas tuaj yeem txiav tawm yog tias xav tau, txwv tsis pub muaj peev xwm txuas cov channel. Lub 500V khib thiab 1608, 1608-II, & 2448 consoles muaj cov ntaub qhwv uas tuaj yeem txuas nrog cov xaim hluav taws xob los tsim lub tsheb npav DC Link.

Meters

Lub 527A compressor yog nruab nrog 10-seg LED meter uas qhia txog kev nce qib thiab cov zis tawm, nrog rau kev tshaj tawm LED (OV).

10-Segment LED Meter

10-seg LED meter zaub nce txo (GR) hauv decibels lossis qib tso zis (dBu).

10-segment meter tuaj yeem pom cov txiaj ntsig txo qis hauv qab no (GR):

• -1dB
• -2dB
• -3dB
• -6dB
• -9dB
• -12dB
• -15dB
• -18dB
• -21dB
• -24dB

10-segment meter tuaj yeem tso saib cov zis theem ntawm cov txiaj ntsig hauv qab no (dBu):

• +14dBu
• +10dBu
• +7dBu
• +4dBu
• +1dBu
• -2 dBu
• -5 dBu
• -8 dBu
• -11 dBu
• -14 dBu

Lub 'meter' muaj nuj nqi yog xaiv los ntawm METER hloov.

Ntsuas: Teem kom xaiv qhov nce txo (GR) lossis qib tso zis (OUT) meter muaj nuj nqi.

• GR (Gauin Txo): Xaiv qhov nce txo qhov ntsuas qhov ua haujlwm (GR)
• OUT (Output): Xaiv cov zis theem ntsuas kev ua haujlwm (dBu)

Overload LED

Lub 527A yog nruab nrog LED ncov qhov taw qhia (OV) uas illuminates thaum cov zis theem nce mus txog lossis tshaj +21dBu.

APPENDIX

A1A specifications

Connector:	API 500 Ntug Connector - VPR Alliance Ua Raws Cai
Input Impedance:	120K Ohms, Sib npaug
Cov zis impedance:	75 Ohms, Transformer ua ke, sib npaug
Qhov siab tshaj plaws Input Level:	+26dBu
Qib tso zis ntau tshaj:	+30dBu
Output Fader Control Tau Txais:	-Infinity rau +10 dB
Attack Sijhawm:	1 millisecond rau 25 milliseconds
Sijhawm tso tawm:	0.3 vib nas this mus rau 3 vib nas this
Compression ratios:	1: 1 rau 1: Infinity
Threshold Control Range:	+10dBu txog -20dBu
Ntsuas:	10 Segment LED Meter uas qhia txog Kev Tau Txais Kev Txo (-1 mus rau -24 dB) lossis Qib Tawm (14 txog +14 dBu). Tshaj dhau LED: +21 dBu
Zaus teb:	+/- 0.5 dB 20 Hz txog 40 kHz
Teeb liab rau suab nrov:	110dB ua
Lub zog xav tau:	3.5 Watts - VPR Alliance Raws Cai
Chav tsev Loj:	1.5 "x 5.25" x 7"
Shipping Loj:	4.5 "x 6.5" x 10"
Chav ntsuas hnyav:	1.8 Ib.
Shipping Nyhav:	2.2 Ib.

A2 527A Recall Sheet

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