MCM-20.4
PRELIMINARY USER GUIDE v1.1
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MCM-20.4 br.1
OPIS
MCM-20.4 je mikser za sumiranje od 20 x 4 kanala.
It employs a unique configuration, offering 20 input channels arranged as follows: 16 are implemented in 2 rows of 8 channels each, being the remaining 4 assigned to the master section, hard-panned left and right in pairs. Unlike classic consoles employing a complicated switching matrix for subgroup assignment, the channels have a fixed assignment in groups of eight. This arrangement not only makes the unit fit in a four-unit rack space but greatly helps in making it affordable. Each channel features center detent Pan and Fader concentric controls plus balanced insert and mute switches.
The insert sends points always have the signal present, so they can be alternatively used as direct outputs for recording without additional patch bays.
The 16 channels implemented on the front panel feature aux sends. A total of 4 different sends can be assigned, with a maximum of 2 per channel simultaneously. AUX 1 and 2 or 3ST can be assigned on a per-channel basis, but not all 4 sends can be used on the same channel at the same time.
Each group has its own stereo fader and balanced insert point and all 4 stereo subgroups are passively summed into the master bus. The gain is restored by means of a 1073 tyle class A, transformer coupled, mic preamplifier, featuring a total of 4 transformers (2 in each channel).
Glavni dio također ima vlastitu balansiranu točku umetanja.
All connections on the back are made by DSUB 25 connectors following the Tascam * protocol, with the exception of the master bus connections, which are by dedicated XLRs.
Sadrži vintagKvalitetan zvuk sa sofisticiranim opcijama usmjeravanja, MCM20.4 je savršen partner za hibridna podešavanja, integrirajući analognu opremu sa vašim DAW-om.
Mnogo je napisano o prednostima i nedostacima između aktivnog (trenutnog) i pasivnog (svtage) topologije sumiranja. Neki mogu tvrditi da je jedno bolje od drugog, ali istina je da je aktivno zbrajanje manje podložno buci i voltage, pasivno zbrajanje ima lijepu, vintagZvuk povezan s njegovim sklopom za pojačavanje.
Pametna hibridna topologija sumiranja koja se koristi u MCM20.4, gdje su kanali trenutno zbrojeni (aktivni) u odgovarajuće podgrupe i podgrupe vol.tage sumirano (pasivno) u master sekciju, pokazalo se da daje ogroman prostor za glavu i nižu buku bez ikakvih kompromisa u pogledu svoje vintage karakterističan zvuk.
PREDNJA PLOČA PREKOVIEW
The front panel is laid out in 4 rows, 2 of 8 channels each featuring grey knobs and 2 with blue knobs carrying the aux sends sections. Further right are the related subgroup controls and aux sends master faders.
Desna strana jedinice sadrži kontrole glavnog dijela.
Kontrole po kanalu su sljedeće:
- ON: When pressed, the related input is added to the subgroup bus. When depressed, it’s muted.
- INS: Turns the insert-on. The insert send always have the signal present, whilst pressing the INS switch activates the insert return input.
- FADER: Attenuates the signal sent to the subgroup bus from unity to minus infinity. Fader all clockwise means unity gain, whilst 12 o’clock means an approximate 20 dB of attenuation. (Or -20dB of gain ).
- PAN: Places the signal within the stereo spectrum, left, center, right or any intermediate setting. The panoramic law follows a standard in which if a 0dB signal is hard-panned, it is -3dB when center panned.
- AUX SEND LEVEL AND / OR PAN: The aux sends are implemented on the blue concentric knobs below each channel. If AUX 1 and 2 are selected, the inner knob is aux1 send and outer is aux 2 send, whilst having Aux 3 selected inner blue knob turns into stereo level and outer becomes pan.
- PRE: Takes the aux signal from the channel PRE or POST Fader.
- 3ST: Chooses between AUX 1 and 2 or 3ST.
Kontrole po Stereo podgrupama su sljedeće:
- ON: When pressed, the output of the subgroup is sent to the Master bus. When depressed, it is muted.
- INS: Turns the insert-on. The insert send always have the signal present, whilst pressing the INS switch activates the insert return input.
- FADER: Attenuates the signal sent to the Master bus from unity to minus infinity. The control has a stepped feel for easy recall of settings. Fader all clockwise means unity gain, whilst 12 o’clock means an approximate 20 dB of attenuation. (or -20dB of gain ).
Controls for the Master Aux send levels are as follows:
- Master AUX 1 and 2 send level on a dual concentric control ( inner for 1, outer for 2 )
- Master AUX 3 send level on a Stereo control.
Desni dio jedinice je posvećen Master sekciji miksera, kako slijedi:
- VU Meters: Measuring the average level at the master outputs. They are calibrated so 0VU = +8dBu.
- Master Fader: Attenuates the Mix’s output from unity to minus infinity. The control has a stepped feel for easy recall of settings. Fader all clockwise means unity gain, whilst 12 o’clock means an approximate 20dB of attenuation.
- ON: When pressed, the output of the Master is sent to the output connectors.
When depressed, it is muted. - INS: Turns the insert-on. The insert send always have the signal present, whilst pressing the INS switch activates the insert return input.
ZADNJA PANELA PREKOVIEW
All the external connections are on the back panel, as follows:
- 5 pin XLR for the external HA-PSU02 power supply unit.
- XLRs for Mix Output L and R.
- XLRs for Monitor Output L and R
- XLRs (2) for Master Insert Send L and R
- XLRs (2) for Master Insert Return L and R
- DSUB 25 for Subgroup 1-4 Insert sends and Aux sends
- DSUB 25 for Subgroups 1-4 Insert Returns and Auxiliary inputs.
- DSUB 25 (2) for Channel Input 1-8, 9-16
- DSUB 25 (2) for Insert sends 1-8, 9-16
- DSUB 25 (2) for Insert Returns 1-8, 9-16
All XLRs are:
- Pin 1: GND
- Pin 2: Hot
- Pin 3: Cold
All DSUB 25 multi-pin connectors are TASCAM protocol. This same protocol is also used by AVID * amongst many others, and is as follows:
The list of the DSUB connectors used and their corresponding channels are as follows:
ULAZI KANALA 1-8:
| TASCAM DSUB CHANNEL # | KANAL I/P 1-8 |
| 1 | INPUT #1 |
| 2 | INPUT #2 |
| 3 | INPUT #3 |
| 4 | INPUT #4 |
| 5 | INPUT #5 |
| 6 | INPUT #6 |
| 7 | INPUT #7 |
| 8 | INPUT #8 |
ULAZI KANALA 9-16:
| TASCAM DSUB CHANNEL # | KANAL I/P 9-16 |
| 1 | INPUT #9 |
| 2 | INPUT #10 |
| 3 | INPUT #11 |
| 4 | INPUT #12 |
| 5 | INPUT #13 |
| 6 | INPUT #14 |
| 7 | INPUT #15 |
| 8 | INPUT #16 |
INSERT SENDS 1-8:
| TASCAM DSUBCHANNEL # | INSERT SENDS 1-8 | |
| 1 | INSERT SEND #1 | |
| 2 | INSERT SEND #2 | |
| 3 | INSERT SEND #3 | |
| 4 | INSERT SEND #4 | |
| 5 | INSERT SEND #5 | |
| 6 | INSERT SEND #6 | |
| 7 | INSERT SEND #7 | |
| 8 | INSERT SEND #8 | |
INSERT SENDS 9-16:
| TASCAM DSUB CHANNEL # | INSERT SENDS 9-16 |
| 1 | INSERT SEND #9 |
| 2 | INSERT SEND #10 |
| 3 | INSERT SEND #11 |
| 4 | INSERT SEND #12 |
| 5 | INSERT SEND #13 |
| 6 | INSERT SEND #14 |
| 7 | INSERT SEND #15 |
| 8 | INSERT SEND #16 |
INSERT RETURNS 1-8:
| TASCAM DSUB CHANNEL # | INSERT RETURNS 1-8 |
| 1 | INSERT RETURN #1 |
| 2 | INSERT RETURN #2 |
| 3 | INSERT RETURN #3 |
| 4 | INSERT RETURN #4 |
| 5 | INSERT RETURN #5 |
| 6 | INSERT RETURN #6 |
| 7 | INSERT RETURN #7 |
| 8 | INSERT RETURN #8 |
INSERT RETURNS 9-16:
| TASCAM DSUB CHANNEL # | INSERT RETURNS 9-16 |
| 1 | INSERT RETURN #9 |
| 2 | INSERT RETURN #10 |
| 3 | INSERT RETURN #11 |
| 4 | INSERT RETURN #12 |
| 5 | INSERT RETURN #13 |
| 6 | INSERT RETURN #14 |
| 7 | INSERT RETURN #15 |
| 8 | INSERT RETURN #16 |
SUBGROUP INSERT SENDS 1-4 AND AUX SENDS:
| TASCAM DSUB CHANNEL # |
SUBGROUP INSERT SENDS 1-4 AND AUX SENDS |
| 1 | SUBGROUP INSERT SEND #1 |
| 2 | SUBGROUP INSERT SEND #2 |
| 3 | SUBGROUP INSERT SEND #3 |
| 4 | SUBGROUP INSERT SEND #4 |
| 5 | AUX 1 SEND |
| 6 | AUX 2 SEND |
| 7 | AUX 3L SEND |
| 8 | AUX 3R SEND |
SUBGROUP INSERT RETURNS 1-4 AND AUXILIARY INPUTS:
| TASCAM DSUB CHANNEL # |
SUBGROUP INSERT RETURNS 1-4 AND AUX INPUTS |
| 1 | SUBGROUP INSERT RETURN #1 |
| 2 | SUBGROUP INSERT RETURN #2 |
| 3 | SUBGROUP INSERT RETURN #3 |
| 4 | SUBGROUP INSERT RETURN #4 |
| 5 | AUXILIARY INPUT #1 (L) |
| 6 | AUXILIARY INPUT #2 (R) |
| 7 | AUXILIARY INPUT #3 (L) |
| 8 | AUXILIARY INPUT #4 (R) |
It is worth noting that, in order to avoid ground loops, the Dsub ground connections are lifted on the MCM20.4 side, leaving the ground paths of your DSUB snakes only acting as shields and preventing any current returns.
TOK SIGNALA I BLOK DIJAGRAM (Dsubs izostavljen radi jasnoće)
STRUKTURA DOBITKA
The gain structure in the MCM20.4 is quite simple and intuitive. At the same time, no compromises have been made on the “secondary” inputs and outputs, like the inserts sends and returns and aux sends. Therefore all connections are balanced and all outputs are nominal +4dBu and able to drive 600 ohms.
The gain structure is that all faders up, any input to any output is unity gain.
+4dBu at one channel input, fader all the way up, subgroup fader all the way up, gives +4dBu at the channel and subgroup insert send points, and at the main send and output as well.
+4dBu at the channel or subgroup insert returns will give +4dBu at the main send and output as well.
+4dBu at the main insert return will give +4dBu at the main output.
+4dBu on a channel input, sends pre fader, will give +4dBu at the corresponding aux output.
MCM 20.4 NAPAJANJE
MCM serija miksera za sumiranje ima koncept hibridnog napajanja, na vrlo sličan način On Slot Technology (OST) koja se koristi u Heritage´s successful 500 series enclosures range.
An external switching power supply enters the unit by means of a 5 pin XLR connector, where it is further filtered using a PI configuration, using a big common mode choke.
Further, linear regulation stages se koriste. Za kanale i magistrale, i izlaz stagje
TEHNIČKE SPECIFIKACIJE
- Channel Input Impedance: Greater than 20 Kohm.
- Maximum channel input level: Greater than +26dBu
- Maximum insert return input level: Greater than +26dBu
- Maximum insert send level: Greater than +27dBu, able to drive 600 ohm.
- Maximum aux send output level: Greater than +27dBu.
- Maximum main output level: Greater than +26dBu into 600ohm.
- Frequency response: ±0.5dB 20Hz to 20kHz
- THD + N: Not more than 0.07% from 50 Hz to 10 kHz at +20dBu output (22 Hz to 22 Khz bandwidth) into 600Ω.
- Noise, all faders up, all subgroups in, measured at the main output, 22Hz to 22Khz: Better than -80dBu
Heritage Audio S.L
C/ Alfonso Gómez, 38, 3C
28037 Madrid
Madrid – Spain
For technical questions not included here:
[email zaštićen]
Za opće informacije:
[email zaštićen]
Skype: povrijedititageaudio
Tel: + 34 917 266 189
www.heritageaudio.com
Preliminary User Guide v1.1
MCM-20.4 br.1
* TASCAM i AVID su zaštitni znaci svojih vlasnika i Heritage Audio ni na koji način nije povezan s njima.
Dokumenti / Resursi
 |
Heritage Audio MCM-20.4 Preliminary 20 Channel Summing Mixer [pdf] Uputstvo za upotrebu MCM-20.4, Preliminary 20 Channel Summing Mixer, MCM-20.4 Preliminary 20 Channel Summing Mixer |
Dom - Heritage Audio
