Samson MDR1688 manuale d’uso

MDR Series Mixers TWEL VE AND SIXTEEN CHANNEL MIXER WITH 24-bit DSP EFFECTS  [...]

Safety Instruc tions/C onsignes de sécurité/Sicherheitsv ork ehrungen ACHTUNG: Um die Gefahr eines Brandes oder Str omschlags zu verringern, sollten Sie dieses Gerät weder Regen noch F euchtigkeit aussetzen.Um die Gefahr eines Stromschlags zu verringern, sollten Sie weder Deckel noch Rückwand des Geräts entf ernen. Im Innern befinden sich kein[...]

PRECAUCION : P ara reducir el riesgo de incendios o descargas, no permita que este aparato quede expuesto a la lluvia o la humedad . Par a reducir el riesgo de descarga eléctrica, nunca quite la tapa ni el chasis. Dentro del aparato no hay piezas susc eptibles de ser reparadas por el usuario . Dirija cualquier reparación al servicio técnico ofic[...]

Copyright 2006, Samson T echnologies Corp . Printed September , 2006 v1.1 Samson T echnologies Corp. 45 Gilpin Av enue Hauppauge, New Y ork 11788-8816 Phone: 1-800-3-SAMSON (1-800-372-6766) F ax: 631-784-2201 www.samsont ech.com[...]

T able of C onten ts M D R 1 2 4 8 a n d M D R 1 6 8 8 F e a t u r e s .................................... 3 F r o n t P a n e l L a y o u t ................................................... 4 F r o n t a n d R e a r P a n e l L a y o u t .......................................... 6 C o n t r o l s a n d F u n c t i o n s .......................[...]

2 Congra tulations on your pur chase of the Samson MDR1248 or MDR1688 mixer! The MDR1248 and MDR1688 are gr eat sounding mixers with a lot of inputs, flexible r outing and stunning on-board digi- tal effects. Connecting all your micr ophones and instruments is simple, with f our mic/line inputs plus FOUR additional stereo channels on the MDR1248, a[...]

3 MDR1248 and MDR1688 F eatures The Samson MDR1248 and MDR1688, twelve and sixteen channel mixers are a c omprehensive , all-in- one solution for liv e sound, rec ording , fixed instal- lation and post production applications. Her e are some of its main featur es: • The mixers offer plenty of inputs with f our Mic/ Line plus four Ster eo inputs f[...]

4 4 3 8 3 7 3 9 2 1 4 0 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 5 0 5 1 5 2 5 3 5 4 5 5 5 6 5 7 5 8 4 9 5 9 F ront P anel L ay out[...]

5 F ront P anel Con trols FRONT P ANEL 1 MIC IN – Input connector for Low-Noise Microphone pre-amp. 2 LINE IN –Input connector for Line level inputs. 3 INSERT – 1/4-inch TRS ( TIP/RING/SLEEVE) connector providing send and r eceive channel pat ch point for outboard effects. 4 GAIN – Used to set the input level of the mic pre and line input. [...]

6 F ront and Rear P anel L ay out o l FRONT P ANEL CONTROLS - c ontinued LEVEL control (35) to set the v olume. 42 POWER LED – Indicates the MDR1248 or MDR1688 is power ed up. 43 PHANTOM LED – Indicates that the 48 Volt P hantom P ower is on. 44 MAIN MIX – Routes the Left / Right MAIN MIX bus to the CONTROL ROOM / PHONES outputs . Use the Lef[...]

7 C ontrols and F unc tions MONO INPUT CHANNEL SECTION The follo wing section details each par t of the MDR1248 and MDR1688’ s MONO INPUT CHANNELS including the GAIN control , L OW CUT switch, 3-BAND EQ, A UX sends, PEAK LED , P AN, SOL O , AL T 3/4 bus and LE VEL controls . The input channels one through f our on the MDR1248 and on through eight[...]

8 MONO INPUT CHANNEL SECTION - continued Auxiliary Busses ( 4 - 6 ) The MDR series include two auxiliary signal paths, or buses, that can be used to cr eate independent mix es for sending to the internal or external effects processors , or to an external monitor system. The flow of these buses start by sending the signal from each individual channe[...]

9 in any optional headphones plugged in to the PHONES connector located in the front panel jack field . If the AFL/PFL MODE switch, located in the master section, is switched out, the signal is sent pr e fader , so you can hear the signal regar dless of the position of the channel vol- ume F ader . This allows you to list en to a channel by itself:[...]

10 Right stereo mix field. Y ou can create a ster eo image by panning some input signals to the left and others to the right. 20 - 3/4 MUTE switch The Ster eo Input channels feature a 3/4 MUTE switch allowing you to easily turn that channel on or off . When 3/4 MUTE LED is illuminated, the channel is off , con- versely , when the LED is off, the ch[...]

11 MASTER SECTION 26 - 2 TRK LE VEL The 2TK LEVEL control knob is used to set the volume level of the sourc e connected to the 2-track input. If you want to mix in a CD , tape or MP3 player with your input channels connected to the 2TK inputs, use the 2TK LEVEL to adjust the level . Auxiliary Returns The MDR1248 and MDR1688 have two ster eo auxilia[...]

12 C ontrols and F unc tions DSP with 256 presets. The presets ar e organized in sixteen Pr ogram banks, each with sixteen variations . The V ariation control knob is used to select one of the sixteen variations for each of the sixteen DSP effect Pr ograms . 38 - PEAK (DSP INPUT ) LED LED indicator illuminates when the input sig nal to the internal[...]

13 equalizer , compressor , noise gate, reverb and other audio devices. F or more information on the channel INSERT points, see the section, “Using the Channel Inser t Jacks” on page 17 of this manual. Stereo Input Channels - Line Inputs Y ou can connect the outputs from stereo devices such as synthesizers, drum machines , effects processors or[...]

14 mix. Y ou can also pan the channels hard left and right to cre- ate two mono buses. Keep in mind that using the 3/4 swit ch mutes the channel from the main mix, so use the AL T 3/4 bus for a separat e stereo , or t wo mono , zone mixes . G - C ONTROL ROOM LEFT/RIGHT OUTPUT The Control Room outputs are 1/4-inch balanced jacks used to connect a st[...]

15 Operating the MDR1248 and MDR1688 BASIC OPERA TION The follo wing section explains the basic operation of the MDR1248 and MDR1688: C ONNECTING MICROPHONES AND INSTRUMENTS 1. Before connecting mics or instruments, make sur e that the power of all y our system's c omponents including the MDR1248 and MDR1688 is turned off . Also , make sure th[...]

16 USING THE DIGIT AL EFFECTS The MDR1248 and MDR1688 mixers f eature a built -in, high quality , 24-bit Multi Effect Pr ocessor , offering studio grade digital eff ects. The MDR’ s Effect sec tion featur es clean Delay , lush Reverbs and multi- effects like Chorus + Delay , Chorus Flange or Chorus + Reverb. Y ou can add a broad range of studio q[...]

17 Operating the MDR1248 and MDR1688 SENDING AN INDEPENDENT MIX TO THE MONIT OR SPEAKERS The MDR1248 and MDR1688’ s AUX1 auxiliary send can be used to feed a separa te set of amplifiers and loudspeakers for stage monitors . This lets you build one mono mix for the amplifiers and monitor speakers facing the musicians, and the other stereo mix f or[...]

18 PLA YING BACK A CD USING 2T TO MIX The MDR1248 and MDR1688 has a dedicated input f or playing back a stereo devic e such as a CD , T ape or Mini Disk. Below is a description of how you can play back a CD , T ape or MD using the MDR1248 and MDR1688’ s 2 TRACK INPUT . 1. T urn the MAIN lev el control all the wa y down. 2. Pr ess the 2TK TO MIX b[...]

19 MDR1248 and MDR1688 S y stem Set-Ups This system shows the MDR1248 and MDR1688 connected to a pair of powered speak ers like the SAMSON dB300a’ s. The A UX SEND 1 output is connected , through a Samson D2500 digital EQ with feedback control, to an external power amp , which is driving 2 monitor speakers. F or inputs, two microphones are con- n[...]

20 MDR1248 and MDR1688 S y stem Set-Ups This system shows the MDR1248 and MDR1688 in a recording set up with the LEFT and RIGHT C ONTROL ROOM output hooked up to pow ered studio monitors and the A UX 1 feed headphone mix sent to a Samson S phone head- phone amp. F or inputs, two microphones are connected to channel 1 and 2’ s low-imped- ance inpu[...]

21 21 MDR1248 and MDR1688 W iring G uide Unbalanced 1/4” Connector XLR Balanced Wiring Guide C ONNEC TING THE MDR1248 and MDR1688 The are sev eral ways t o interface the MDR1248 and MDR1688 to suppor t a variety of applications. The MDR1248 and MDR1688 featur es balanced inputs and outputs, so connecting balanced and unbalanced sig nals is possib[...]

22 MDR1248 and MDR1688 Specifications Mono input channels Microphone input electronically balanced, discrete input c onfiguration Fr equency response 10Hz to 45kHz Distortion ( THD & N) 0.005% at 4dBu, 1kHz Gain range 0dB to +40dB (MIC) SNR (Signal to Noise Ratio) 105dB Line input electronically balanced Fr equency response 10Hz to 45kHz Distor[...]

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Samson T echnologies Corp. 45 Gilpin A venue Hauppauge, New Y ork 11788-8816 Phone: 1-800-3-SAMSON (1-800-372-6766) F ax: 631-784-2201 ww w .samsontech.com[...]