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Safety Instructions Caution: To reduce the hazard of electrical shock, do not remove cover or back. No user serviceable parts inside. Please refer all servicing to qualified personnel.
Table of Contents Introduction 2 PA324 Features 3 Controls and Functions Front Panel Layout Front Panel Controls 4 5–9 PA324 Input and Output Connections 10–12 Operating the PA324 13–15 System Set-ups 16–17 PA324 Wiring Guide 18 Specifications 19 Block Diagram 20 Copyright 2001, Samson Technologies Corp. Printed June, 2001 Samson Technologies Corp. 575 Underhill Blvd. P.O. Box 9031 Syosset, NY 11791-9031 Phone: 1-800-3-SAMSON (1-800-372-6766) Fax: 516-364-3888 www.samsontech.
Introduction Congratulations on your purchase of the Samson PA324 powered mixer! The PA324 is a six channel, 300 Watt powered mixer with built-in, 24 BIT DSP effects. Clean, clear sound reproduction with dazzling digital effects including Delay, Chorus and lush Reverb, packaged in a rugged enclosure, ensure reliable high quality sound from performance to performance.
PA324 Features 0 0 HIGH 0 HIGH 0 HIGH 0 HIGH 0 HIGH 0 HIGH 7 15 15 0 0 15 15 0 MID 15 15 0 MID 15 15 0 MID 15 15 2 5 3 4 0 MID SAMSON 1 6 15 15 MID MID MONITOR / MAIN DIGITAL EFFECTS POWER 0 LARGE HALL -20 -10 1 MEDIUM HALL -7 -4 0 +3 +6 CLIP MODE 2 LARGE ROOM 15 15 0 15 15 0 LOW 15 15 0 LOW 15 15 0 LOW 15 15 0 LOW 15 15 0 LOW LOW 3 VOCAL ROOM #1 ON 4 VOCAL ROOM #2 MAIN BRIDGE MAIN MAIN OFF 5 CHORUS + REVERB MAIN MAIN MONITOR 6 C
4 CONTROLS THE AMOUNT OF VOLUME FROM AN EXTERNAL TAPE SOURCE 21 TAPE IN CONTROL OUT 10 5 5 5 0 0 15 INPUT FOR MIXING EXTERNAL SIGNALS 22 AUX IN 10 LEVEL 10 EFX 10 CHANNEL 3 MIC 15 LOW 15 MID 15 HIGH MONITOR OUT LINE IN PAD 0 0 0 15 15 15 0 CHANNEL 3 6 5 5 5 0 0 10 LEVEL 10 EFX 10 5 5 5 0 0 15 LOW 15 MID 10 LEVEL 10 EFX 10 CHANNEL 5 MIC 8 HIGH 15 CONTROLS THE AMOUNT OF SIGNAL SENT TO THE MONITOR OUT (JACK 26) IN MIC LINE 15 LOW 15 MI
Controls and Functions FRONT PANEL CONTROLS INPUT CHANNEL SECTION The following section details each part of the PA324’s INPUT CHANNELS including the 3-BAND EQ, the MONITOR and EXF sends, PAD and LEVEL controls. CHANNEL 1 1 Channel Equalizer (HIGH MID LOW) 0 The PA324 input channels feature a 3-band equalizer allowing you to adjust the high, mid, and low frequencies independently on each channel. The channel’s frequency response is flat when the knobs are in the "12:00" position.
Controls and Functions FRONT PANEL CONTROLS 24 BIT DIGITAL EFFECT SECTION EFFECTS The PA324 features a built-in, 24 Bit Digital Effects processor with high quality, studio grade effects like Delay, Chorus and Reverb. The following section describes the features of the powerful on-board DSP. 0 7 6 1 6 2 5 3 4 DIGITAL EFFECTS 6 Effect Select Switch (DIGITAL EFFECTS) 0 LARGE HALL 1 MEDIUM HALL The EFX switch allows you to select one of the eight built-in digital effects.
Controls and Functions FRONT PANEL CONTROLS MONITOR SECTION The PA 324 has two internal power amplifiers and depending on the MODE selection switch, the amplifiers are fed from the MAIN or MONITOR bus signal. The following section describes the MONITOR bus operation, which allows you to adjust the overall tone and volume, and specify the mix level of the built-in effects.
Controls and Functions FRONT PANEL CONTROLS MAIN SECTION PA324 SAMSON BIT 24 DSP DIGITAL EFFECTS POWERED MIXER The PA 324 has two internal power amplifiers and depending on the POWER AMP selection switch, the amplifiers are sent the MAIN or MONITOR bus signal. The following section describes the MAIN bus operation, which allows you to adjust the over-all tone and volume, and specify the mix level of the built-in effects.
Controls and Functions FRONT PANEL CONTROLS POWER AMP SECTION PA324 The PA324’s power amplifier section can be configured to operate several ways depending on whether you need MAIN plus MONITOR amplifiers to power your speakers, or if you just need more power for the MAIN speakers. The section below describes the PA324 power amp modes.
PA324 Input and Output Connections LINE LINE LINE LINE LINE LINE MIC MIC MIC MIC MIC MIC EFX OUT 6 3 1 5 7 1 1 2 2 8 9 FOOTSWITCH 2 4 CHANNEL 1 CHANNEL 2 CHANNEL 3 CHANNEL 4 CHANNEL 5 CHANNEL 6 EFFECTS AUX IN TAPE IN REC OUT MAIN OUT MONITOR OUT CHANNEL 1–6 MIC and LINE INPUTS The PA 324’s six input channels each have a Hi-Z (High Impedance) Line level input and a Low-Z(Low impedance) Mic level input.
PA324 Input and Output Connections EXTERNAL OUTPUT JACKS The PA324 features several output connectors allowing you to interface a variety of external devices. A stereo recording device such as a cassette recorder can be connected to the REC OUT jacks, and additional power amplifiers can be connected to the MONITOR and MAIN output jacks. 7 Record Output (REC OUT) The signal present at this connector is the MAIN bus signal before it has passed through the MASTER level control and graphic equalizer.
PA324 Input and Output Connections SPEAKER CONNECTION Here are three ways in which speakers can be connected to the PA324: A single speaker can be connected to either the A or B jack of AMP 1 and AMP 2, two speakers can be connected in parallel to both the A and B jacks of AMP1 and AMP 2, or a single speaker can be connected to the BRIDGE jack (bridge connection). For each of these, the required speaker impedance will differ.
Operating the PA324 BASIC OPERATION The following section explains the basic operation of the PA324.
Operating the PA324 USING THE DIGITAL EFFECTS The PA324 features a built-in, high quality, 24 BIT Digital Signal Processor offering studio grade effects. The DSP features clean Delay, lush Reverbs and multi-effects like Chorus + Delay or Chorus + Reverb. The following details the operation of the internal DSP effects: 1. Connect a mic or instrument to the desired channel, and adjust the volume and equalizer to your liking. EFFECTS 0 7 2. Now select the desired preset on the DSP selection switch.
Operating the PA324 USING AN EXTERNAL EFFECT 0 CHANNEL 3 0 HIGH CHANNEL 4 0 HIGH CHANNEL 5 0 HIGH CHANNEL 6 0 HIGH 0 7 If you prefer to use an external device for effects processing, you can easily connect the unit using the PA324 EFX bus.
Vocal This system shows the PA324 power amp operating in MAIN/MAIN mode, with one speaker connected to POWER AMP 1 and one speaker connected to POWER AMP 2. The MONITOR OUT is connected to an external power amp, which is driving 2 monitor speakers. For inputs, two microphones are connected to channel 1 and 2’s low-impedance inputs, and the output of the Bass Direct Box is also connected to the Low-Impedance input on channel 4.
Vocal This system shows the PA324 power amp operating in MAIN/MONITOR mode, with two speakers connected to POWER AMP 1 and two monitor speakers speaker connected to POWER AMP 2. For inputs, two microphones are connected to channel 1 and 2’s lowimpedance inputs, and the output of the Bass Direct Box is also connected to the LowImpedance input on channel 4. The Keyboards, as well as, the Lead and Rhythm Guitar signal processors’ outputs are connected to the PA324’s line inputs.
PA324 Wiring Guide CONNECTING THE PA324 The are several ways to interface the PA324 to support a variety of applications. The PA324 features balanced inputs and outputs, so connecting balanced and unbalanced signals is possible.
Specifications SPECIFICATIONS Rated Output power Frequency response 150W/4Ω@0.5% THD at 1KHz per amplifier 20Hz~20KHz+/-0.5dB@1W Output into 8Ω (AMP OUT) 20 Hz~20KHz+/-0.5@+4dB Output into 10Ω (MAIN OUT, MONITOR OUT, EFX SEND) Total Harmonic Distortion Less than 0.19%@20Hz~20KHz, 75W output into4Ω (AMP OUT) Less than 0.
Block Diagram 20
Samson Technologies Corp. 575 Underhill Blvd. P.O. Box 9031 Syosset, NY 11791-9031 Phone: 1-800-3-SAMSON (1-800-372-6766) Fax: 516-364-3888 www.samsontech.
