Manuale d’uso / di manutenzione del prodotto PL1602 del fabbricante Samson
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Intr oduction 1 System Featur es 2 Guided T our 3 Overview 3 Channels 4 Main Section 5 Rear Panel 7 Connecting The PL 1602 - General Suggestions 9 Setting Up and Using the PL 1602 11 Setting the Corre.
Intr oduction Congratulations on purchasing the Samson PL 1602 stereo mixer! Although this unit is designed for easy operation, we suggest you first take some time to go through these pages so you can fully understand how we’ve implemented a number of unique features.
System Featur es “ PL ” stands for “ Program/Line ” and the name describes the broad range of signals which can be handled by this powerful stereo mixer.
Guided T our - Over view The following illustration shows an overview of the front panel of the PL 1602: 3 SAMSON -15 +15 0 -15 +15 HIGH 0 ∞ AUX 1L +10 0 LOW ∞ +10 LEVEL 0 ∞ AUX 2R +10 0 R BALAN.
Guided T our - Channels 1: Equalizer (white) - These knobs determine the amount of boost or attenuation in each of two frequency areas. The high and low frequency knobs provide 15 dB of cut or boost at 10 kHz and 100 Hz, respectively, with both utilizing a shelving curve.
5 Guided T our - Main Section 1: Stereo Auxiliary Return Level (blue) - These knobs determine the input level of signal arriving via the PL 1602 ’ s two stereo Auxiliary returns. The “ 0 ” (2 o ’ clock) position of each knob indicates unity gain (no level attenuation or boost).
6 Guided T our - Main Section 4: Headphone jack - Connect any standard stereo headphones to this jack (via a 1/4" TRS plug) for private monitoring of the main stereo output (including all connected Aux returns). The built-in PL 1602 headphone preamp delivers 100 mw at 32 ohms.
Guided T our - Rear Panel 1. Fuse sled - This contains a fuse holder and shows the currently selected voltage rating for your PL 1602. Make sure the voltage rating is correctly set before powering up! Fuse ratings are: 0.3 amp for 115 VAC and 0.15 amp for 230 VAC.
8 Guided T our - Rear Panel 5: Mic inputs (channels 1 and 3) - Use these electronically balanced XLR jacks to connect a microphone to channels 1 and/or channel 3.
9 Connecting The PL 1602 - General Suggestions The actual connections you ’ ll make to and from the PL 1602 will vary according to the environment you use it in and the particular equipment you have. In the “ PL 1602 Applications ” sections at the rear of this manual, you ’ ll find some suggested setups.
10 • Matched signals (i.e. the stereo left-right outputs of a keyboard, drum machine, tone generator, effects processor, CD player, or tape recorder), should always be connected to the PL 1602 ’ s paired odd/even channels (i.e. 1L/2R, 3L/4R, etc.).
11 Setting up your PL 1602 is a simple procedure which takes only a few minutes: 1. Remove all packing materials (save them in case of need for future service) and decide where the unit is to be physically placed — it can be mounted in any standard 19" rack, requiring two rack spaces, or used on a tabletop.
-40 +4 0 -10 TRIM -40 +4 0 -10 TRIM 12 You ’ re now ready to establish the correct gain structure — the key to getting the best performance from the PL 1602, or from any mixer, for that matter.
13 Setting the Cor r ect Gain Str uctur e j. If you have any outboard signal processors connected to the Aux send and return jacks on the rear panel, follow this step. Because outboard effects processors can sometimes be quite noisy, it ’ s particularly important to maximize the amount of signal being sent to them via the PL 1602 Aux sends.
14 Gr ounding T echniques Hum and buzz are the biggest enemies you face when interconnecting a large number of different pieces of equipment to a central audio mixer.
15 Gr ounding T echniques If you ’ re using the PL 1602 in a fixed location such as a recording studio, you may want to invest the time and money into creating a star ground network . This is by far the best technique for avoiding grounding problems.
16 Using the Balance Contr ol The final Main output of the PL 1602 is stereo — that is, there are two discrete Main output jacks, labeled “ left ” and “ right, ” which will normally be routed to two discrete speakers.* Because of this, you will usually be working with a stereo field that ranges from hard left to hard right.
17 Using Equalization One of the most exciting aspects of using a mixer such as the PL 1602 is the ability to shape a sound, using a process called equalization . But there are few areas of sound engineering more misunderstood than equalization, and, just as good EQ can really help a sound, bad EQ can really hurt it, so read on.
18 Using Aux Sends and Retur ns The PL 1602 ’ s two Auxiliary sends allow you to combine the signal from multiple channels and send the resulting mix to external devices such as effects proces- sors. When an Aux send knob is at the “ 0 ” position, the signal is routed with unity gain (that is, no boost or attenuation).
19 Using Channel Inser ts In addition to using Auxiliary sends and returns to access outboard devices, the PL 1602 also provides channel inserts for the first six input channels.
20 Applications Here are four suggested applications for the PL 1602; bear in mind that your particular circumstance may dictate changes in these suggested signal connections and routings.
21 Application 2 - Using The PL 1602 As An Onstage Monitor Mixer Here, the PL 1602 is receiving monophonic signal into its line inputs from the direct channel outputs of a main live mixer. Its Main output is connected to an outboard signal processor (typically an equalizer) prior to being routed to an amplifier and onstage monitors.
22 Application 3 - Using The PL 1602 As A Keyboar d Submixer Here, various keyboards and MIDI tone generators are connected to the channel line inputs of the PL 1602, with stereo signals routed to “ matched ” consecutive odd- and even-numbered inputs.
Applications Application 4 - Linking The PL 1602 With Other Mixers The provision of rear-panel Bus Inserts makes it easy to link multiple PL 1602s or to link the PL 1602 with other mixers, without the need to use up channel line inputs. As shown in this illustration, simply connect the main output of another mixer to the PL 1602 Bus Inserts.
Appendix A: Block Diagram 24 MIC 1 H.A. H.A. B.A. H.A. - + - + -50dBu - +4dBu LEVEL HIGH HIGH LOW LOW BALANCE AUX 2R CHANNEL 3/4 CHANNEL 9/10 CHANNEL 11/12 CHANNEL 13/14 CHANNEL 15/16 AUX 2 RETURN AUX 1L CH 1L INSERT 1L INSERT 2R CH 2R -30dBu - +4dBu 10Kohm B.
Appendix B: Changing the PL 1602 V oltage 25 Following are step-by-step instructions for changing the mains voltage of the PL 1602. NOTE: The voltage rating will nor- mally be preset correctly at the factory and will require no adjustment unless you use the PL 1602 in a country other than the one in which you purchased the unit.
26 Specifications 1. Frequency Response (Unity) 20 Hz to 20 kHz ± 1 dB 2. THD+N (unity gain, 20 Hz - 20 kHz) Less than 0.05 % 3. Maximum Gain (Mic in to Main Mix out) 69 dB 4. Crosstalk (Ch - to - Ch, 1 kHz) -70 dB 5. Residual Noise -85 dB 6. Headphone Output Level 100 mW (32 Ω loaded) 7.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Samson PL1602 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Samson PL1602 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Samson PL1602 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Samson PL1602 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Samson PL1602, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Samson PL1602.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Samson PL1602. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Samson PL1602 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
