SL424USB Studio/Live Mixer OPERATING MANUAL AND USER GUIDE www.wharfedalepro.
OPERATING MANUAL AND USER GUIDE IMPORTANT WARNINGS & SAFETY INSTRUCTIONS 1. Read these instructions 2. Follow all instructions 3. Keep these instructions 4. Heed all warnings 5. Do not use this apparatus near water 6. Clean only with dry cloth. 7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. 8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. 9.
SL424USB Multi-Channel Mixer ATTENTION: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR 19. The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of non-insulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock. - Warning: To reduce the risk of electric shock, do not remove the cover (or back) as there are no user-serviceable parts inside.
OPERATING MANUAL AND USER GUIDE TABLE OF CONTENTS 1. Important Warnings and Safety Instructions.......................................... 1 2. Introduction............................................................................................ 4 3. About the SL424USB Mixer................................................................... 4 4. SL424USB Overview............................................................................. 4 5. Features.....................................................
SL424USB Multi-Channel Mixer INTRODUCTION The Wharfedale Pro SL424USB Professional Mixer is the result of many years of experience in the use, design and manufacture of professional sound reinforcement products. We take great pride in engineering and building every Wharfedale Pro product and wish to thank you for entrusting us with your sound.
OPERATING MANUAL AND USER GUIDE FEATURES ♦ High Quality Multi-Channel Mixer ♦ 16-bit 48kHz USB recording interface ♦ 8 Channels ♦ Channels 1 – 4 o XLR + TRS balanced inputs o Gain adjustment o 80Hz High Pass Filter o 3 band (Low/Mid/High) EQ o 1 Aux send o EFX level control o L/R pan control o Phantom Power o Peak LED ♦ Stereo Channels 5/6 – 7/8 o TRS balanced inputs o +4/ -10dB switch o EFX level control o Pan adjustment ♦ Control Room Sends (L/R) ♦ USB to Mix Switch ♦ USB to Headphones/
SL424USB Multi-Channel Mixer SL424USB FRONT PANEL
OPERATING MANUAL AND USER GUIDE CONNECTIONS/WIRING The SL424USB input panel has one XLR plus one TRS connector for each of the first 4 channels and TRS connectors for Channels 5–8. Be sure to use a high quality shielded cable with suitable connectors when connecting balanced sources. Channels 1 – 4: Balanced XLR microphone and line inputs make it easy to plug microphones into the mixer.
SL424USB Multi-Channel Mixer CHANNELS 5/6 – 7/8: These channels allow you to plug stereo line level devices (digital keyboards, sequencers, interfaces etc.) into the mixer. 13 +4 / -10dB switch: to get the best signal to noise ratio 13 when plugging in various instruments and outboard gear. STEREO EFFECTS RETURN USB level: Adjusts the signal level of the USB playback. USB to Main Mix: Send the signal from the USB input to 14 15 21 22 23 14 the Main Mix output jack.
OPERATING MANUAL AND USER GUIDE Follow these few steps and you are on your way to a great sounding mix! • • Set the first channel LEVEL control in the “12 o’clock” position. All others down (-∞) Speak into your mic (or start source material) and while watching the metering, slowly increase the level using the GAIN control at the top of the channel. The CLIP (RED) LED should only flicker. • Adjust the EQ , keeping in mind that EQ adjustment will affect the output level.
SL424USB Multi-Channel Mixer WIRING DIAGRAM SL424USB 10
OPERATING MANUAL AND USER GUIDE DIMENSIONAL DRAWINGS 11
SL424USB Multi-Channel Mixer BLOCK DIAGRAM 12
OPERATING MANUAL AND USER GUIDE SPECIFICATIONS 0dBu=0.775Vrms Maximum Balanced Output Main XLR Balanced out +26.5dBu ±1dBu Level (1% T.H.D. at 1kHz ) Main 1/4" Jack Balanced out +26.5dBu ±1dBu Maximum Unbalanced Main XLR Unbalanced out +21dBu ±1dBu Output Level Main 1/4" Jack Unbalanced out +21dBu ±1dBu (1% T.H.D. at 1kHz ) Headphone output 150mw±5mw @ 32ohms THD+N <0.055% @ + 14dBu ±0.
Wharfedale Professional IAG House, 13/14 Glebe Road, Huntingdon, Cambridgeshire, PE29 7DL, UK www.wharfedalepro.com Wharfedale Professional reserves the right to alter or improve specifications without notice. All rights reserved © 2011 Wharfedale Pro. Wharfedale Pro is a member of the IAG Group.
