4 Channel Amp Wiring Options
4 Channel Amp Wiring Options
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Using a Mixer Insert Jack as a Direct Out
When connecting a mixer to a digital audio interface or multi-track recorder, you normally connect the Direct Out jack of each mixer channel to a track's input on the interface. For example, let's say your kick drum mic is connected to channel 1 of the mixer. If you wanted to record the kick drum to track 1, you would connect the channel 1 Direct Out to the track 1 input of the interface. You would then connect the channel 2 Direct Out to the track 2 input of the interface, etc. Using the Direct Outs in such a way takes each channel's signal post-fader and post-EQ and sends it straight to the recording device. This allows you to record that one instrument (and only that instrument) to its corresponding track on the recorder or in your DAW software.
But what if your mixer doesn't come equipped with Direct Outs? Many lower-priced mixers, or mixers designed more for stage use, do not. It's also common on many 16-channel mixers to only have Direct Outs on the first 8 channels. If your mixer doesn't have Direct Outs (or doesn't have enough of them), you could always use the Main L/R Outputs of the mixer, but there are only two of them. But the problem with this is that ALL of the channels in use will get mixed together and sent to those outputs, which is generally not what you want. If your mixer has Subgroup outs (or "buses"), you could use those, but on a 4-bus mixer, there are only, well–4 of them. So what's a guy to do if he wants to record each mixer channel to its own track? Fortunately, there's another alternative–the Insert Jack.
An Insert Jack is a TRS (Tip-Ring-Sleeve or 1/4? stereo) jack that is typically used to connect a signal processor to only affect a single mixer channel. An example would be a compressor or noise gate that might be connected through the Insert Jack of a mixer channel to only affect a single vocal mic. To use the Insert Jack in such a way, you need a "Y" cable with a stereo TRS plug on one end (connected to the Insert Jack) and two mono TS (Tip-Sleeve or 1/4? mono) plugs on the other end. One of the TS plugs is connected to the input on the signal processor and the other is connected to the output of the same device. So essentially, the Insert Jack creates a signal "loop" that both sends the signal for the channel out to an external signal processor and then returns it back to the mixer, all through a single jack (the Insert Jack). However, if you're not using an Insert Jack for its intended purpose (and you often will not), it has a handy second function–as a Direct Out.
There are a few different ways of using an Insert Jack as a Direct Out. First, you can use a standard TS to TS patch cable. Plug the cable all the way in to the Insert Jack. The only drawback here is that the signal is sent to the recorder from the Insert jack, but the signal is "interrupted" and is no longer sent to the mixer's main outputs. This may be okay for some recording situations, but in other cases, you will want the signal passed on through to the main outputs as normal, for monitoring purposes or for connection to a power amp and speakers in the case of a live concert.
The next option using a regular TS to TS cable is to only plug the cable in to the "first click" of the Insert Jack. This will tap the signal and send it straight out to the recorder, while still allowing it to pass on through to the mixer's main outputs. The only drawback to this is that if you don't get the cable plugged in just right (to only the first click), you may end up with either no signal to your recorder or no signal to the main outputs (or both).
So a better alternative than the "first click" or the "all-the-way-in" method is to use a special cable or adapter that both passes the signal for the channel to the send of the Insert Jack but still passes it on through to the mixer's outputs as normal. To do this, you can use a Stereo Plug to Mono Jack adapter with a normal mono TS to TS cable. Or you could buy a special Insert Direct Out cable adapter.
However, if you're like me, you like to keep your connections and cable runs as simple and clean as possible, in which case you don't like using adapters or plugging cables into cables. So the most elegant alternative is to use a specialized Insert Jack/Direct Out cable for just this purpose. Assuming that you have some very basic soldering skills, this cable is very easy to make, which I will now describe.
Start with a regular mono patch cable with TS plugs on both ends. Remove one of the plugs from the end with some wire cutters or tin snips. Now, solder a stereo TRS plug onto that end of the cable, shorting the Tip and Ring together, and connecting the shield to the Sleeve as normal. This will effectively send the signal to the output of the Insert Jack, while simultaneously returning it to the mixer, which will pass the signal on through to the Main outputs.
Some audio snobs might scoff at such a technique, saying that an Insert Jack wasn't designed to be used this way, and therefore it shouldn't be. However, some audio purists argue that for recording purposes, this method might actually be superior to using a Direct Out, because the signal path should be the shortest, cleanest, and most uncolored. The reason is that the signal is being sent directly from the preamp to the recorder, without going anywhere else. It's not passing through the EQ or even the fader, which could, in theory, color or degrade the signal.
Now, of course, like anything else, there are some pros and cons to using this technique. We've already covered the pros, so now for the cons. First, when using this technique, the only control that you have over the level of the signal being sent to the recorder is the Trim or Gain knob on your mixer. Because the Insert Jack is pre-fader, the fader becomes useless in terms of the signal being sent to the recorder. However, the fader will still control the level of the channel in the main mix. Second, when using this technique, you are bypassing the EQ, so if you like to use some EQ for preliminary shaping of the recorded track, you're out of luck. But in most cases, I don't use any EQ when tracking. I use the parametric EQ built into my DAW software for shaping the sound of my tracks after recording, so this isn't really a concern for me. Finally, if you're using the Insert Jack as a Direct Out, you can no longer use it as an Insert. So if you wanted to patch a Compressor into the channel to tame some peaks, you'd have to connect it another way (i.e.: Insert to Compressor to Recorder).
In conclusion, if you need to do some multitrack recording, but don't have a mixer that's equipped with Direct Outs (or enough of them), the Insert Jack makes a handy replacement. Or if you're an audio purist who wants the cleanest and shortest possible signal path between your mic and recorder, the Insert Jack may be the way to go.
About the Author
Jon Goad is a drummer, producer, and general music junkie. He's the owner and chief engineer of Silent Sky Studios and the drummer for the bands Immortal Soul and Soulfire. When he's not having fun with music, Jon keeps the bills paid by working as a software developer for CUSI, a leading developer of software for the Utility industry. Jon lives in Northeast Arkansas with his wife Ashley and son Jack.
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7-inch Car DVD Player (GPS DVBT Dual Zone 2 DIN Touchscreen)
Introducing the CVJY-C28, a total in-dash car navigation, entertainment, and communication solution that takes intelligent in-car enhancement systems to the
next level!
Next Level Navigation
: This 2-DIN (100 mm tall) all in one car wonder comes standard with the Windows CE 5.0 mobile operating system to run today's most popular GPS software and software features like lane assist, voice guidance, 3-D views, intelligent route planning, points of interest, real time traffic and weather data, map update and share, and emergency response to your location. Also included is an extra long 3 meter GPS magnet antennae to significantly boost your GPS signal reception.
Next Level Entertainment
: This two-DIN multimedia powerhouse supports all the most popular disk formats like DVD, CD, VCD, SVCD and displays it all on 7 inch TFT LCD touchscreen splendor. It also plays multimedia files saved on SD cards and USB thumb drives like DIVX, XVID, AVI, MP4, VOB, MPG, MP3, WMA, and JPG. What's more, effortlessly plug in your Apple iPod to pump your personal media collection through your car's speakers. If that's not enough entertainment, watch DVB-T wherever it's available which is pretty well everywhere these days. Also included is a new and more powerful 20 cm high, 3 meter long coil-base magnetic DVB-T antenna which you can place on any magnetic part of your car to significantly boost digital television signal reception.
Next Level Communication
: This next generation mobile unit easily pairs with your Bluetooth-enabled cellphone so you can talk handsfree through its built in MIC and hear your caller through your car speakers. From your mobile phone's Bluetooth menu, simply press to detect Bluetooth devices in your area. Within seconds, "CAR KIT" will be displayed. Enter the password provided in the user manual and that's it. Hassle-free Bluetooth setup! What's more, the CVJY-C28 comes with steering wheel control functionality which provides you with another option besides remote control and touchscreen by which to operate this unit. It also comes with an advanced radio system for traffic announcements and rear video camera for optimal surroundings visibility.
This new in-car total solution does more than same-class car DVD systems, but costs less as a result of Chinavasion's increasing market share in the car multimedia system business. So take advantage of our new factory-direct low price by purchasing one to transform your car into a home away from home or a mobile office and then buy some more to sell on your online store. At these prices, your profit margins will get a whole lot fatter. And as always this state of the art in-car enhancement solution is backed by Chinavasion's amazing 12 month warranty!
At a Glance...
- 7 inch TFT LCD Touchscreen
- GPS 3-D View, Route Planning, Voice Guidance, and more!
- DVD, DIVX, XVID, AVI, MP4, VOB, MPG, MP3, WMA, JPG
- Better GPS and DVB-T Signal Reception
- Bluetooth and Steering Wheel Control
- SD card, USB Thumb Drive, iPod Support
China Manufacturer Specifications
- Main Function: 7 Inch TFT/LCD Touchscreen Two DIN Car GPS Navigation Entertainment Communication System with DVB-T
-
Display Functionality:
- Screen Type: TFT/LCD Touchscreen
- Screen Size: 7 Inch
- Screen Resolution: 480x234
- Aspect Ratio: 16:9, 4:3
- Motorized Adjustable Front Panel - DVD Functionality:
- DVD Type: Region Free
- Disk Types Supported: DVD, CD, VCD, SVCD
- TV System: NTSC, PAL, Auto
- TV Type: 4:3 PS (Pan & Scan), 4:3 LB (Letterbox), 16:9
- Last Play Memory
- Dual Zone (GPS while Radio/Music playing): YES
- Controls:
- Play/Pause, Stop, Rewind/Forward (x2, x4, x8, x16, x20), Previous Chapter/Next Chapter
- Slow Forward Play x1/2, x1/3, x1/4, x1/5, x1/6, x1/7
- Volume, Bass, Treble, Balance, Fade
- Visual Zoom: x0.5, x2, x3, x4 - Password Rating: Kid Safe, G, PG, PG-13, PG-R, R, NC-17, ADULT
- Audio Setup:
- Audio OUT: SPDIF/OFF, SPDIF/RAW, SPDIF/PCM
- Melody Key: +4, +2, 0, -2, -4 - Video Setup
- Brightness
- Contrast
- Hue
- Saturation
- Sharpness - Speaker Setup
- Downmix: LT/RT, Stereo, VSS - - Digital Setup
- Op Mode: Line Out, RF Remod
- Dynamic Range: OFF, 2/8, 4/8, 6/8, FULL
- Dual Mono: Stereo, Mono L, Mono R, Mix Mono - Audio and Video Special Effects
- GPS Functionality:
- Navigation Presets: Home, Office, Locations, Favorites, History, POI around GPS position, POI around destination, Point on Map
- Visual Data Settings
- Map Options
- Night Colors
- 2D Perspective
- Set 3D Angle
- Legend Customization: Cities/Symbols, Roads, Aareas/GPS, Icons - Points of Interest
- Maintain POI Category: Add POI Category, Rename POI Category, Remove POI Category
- POI Alarm - Sound ON/OFF
- Units: Kilometers/Miles
- Route Planning:
- Route type: Fastest by Car, Shortest by Car, Fastest by Lorry (Truck), Shortest by Lorry (Truck), Pedestrian
- Avoid: Motorways, Toll Roads, Ferries
- Automatic Zooming
- Configure Alarm
- Speed: Kilometers/Miles - Time/Date/Time Zone Set
- Screen Calibration
- GPS Information: Longitude, Latitude, Altitude, Direction, Speed, Satellites, Time, Date
- GPS Specific Media Player: Movies, Music, Photos, Ebook (.txt)
- DVB-T Functionality:
- Country Digital TV Presets: China, England, Germany, France, Italy, Spain, Turkey, Portugal, Greece, Russia, Czech Republic, Taiwan, Holland, Australia
- Automatic and Manual Search
- Visual Indication:
- System Status
- Signal Detection - Channel List:
- Edit Channels
- Favorite Channels - AV Control
- Audio Output: Stereo, Left, Right
- Screen Ratio (4:3, 16:9)
- Display Format: Auto, Pillar Box, Full Mode - Radio Functionality:
- AM Frequency Range: 522~1620KHz (worldwide)
- FM Tuning Range: 87.0~108.0MHz (worldwide)
- Bands (FM1/FM2/FM3/AM1/AM2)
- 6 Station Presets For Each Band (Total 30 Preset Stations)
- 5 Preset Radio Settings
- Europe
- America 1
- America 2
- Japan
- Russia - AMS (Automatic Search)
- PTY (Program Type)
- TA (Traffic Announcements)
- RDS System: YES
-
Media Player Functionality:
- Video Formats Supported: DIVX, XVID, AVI, MP4, VOB, MP4
- Audio Formats Supported: MP3, WMA
- Picture Formats Supported: JPG - Bluetooth Functionality:
- Touchscreen Dialpad
- Call Features:
- Dial
- Answer
- Hang Up - Call History:
- Dialled Calls
- Received Calls
- Missed Calls - Cellphone Song Play (Dependent on Phone Model)
- Handsfree ON/OFF Toggle
-
Front Panel:
- Power / Function Source
- IR (Remote Control Infrared Window)
- GPS Shortcut Button
- Volume-
- Volume+
- Radio Band Select
- Disc Unload
- Mute Button
- Screen Raise / Lower
- Built-in MIC
- Mini-USB Interface -
Inside Panel:
- Disc Loading Slot
- GPS SD Card Slot
- Multimedia SD Card Slot - Back Panel:
- Radio Antenna Slot
- DVB-T Antenna Connector
- AV Connectors
- Audio OUT (x4)
- Audio IN (x2)
- Video OUT (x2)
- Video IN
- Subwoofer
- Rear Camera
- Steering Wheel Connector
- CDC (CD Changer) - iPod Connector
- GPS Antenna Connector
- Wire Harness Slot
- Front Left Speaker x2
- Front Right Speaker x2
- Rear Left Speaker x2
- Rear Right Speaker x2
- Ground
- Battery+
- ACC
- Reverse
- AMP Control
- Brake
- Mute
- Auto Antenna
- Illumination - Languages:
- Main Menu: English, Chinese
- DVD Player (Audio, Subtitle, Menu): English, Chinese, German, Spanish, French, Portuguese, Italian
- GPS: English (United Kingdom), English (United States), Chinese (Mandarin/Putonghua), Chinese (Cantonese), Chinese (Taiwanese), German, French, Italian, Dutch, Spanish, Romanian, Portuguese (Portugal), Portuguese (Brazil), Swedish, Danish, Norwegian, Finnish, Czech, Greek
- DVB-T: English, German, French, Italian, Spanish, Turkish, Greek, Russian, Czech, Slovak, Vietnamese, Chinese
-
Media Connectivity:
- SD Card Slot
- Mini-USB Slot
- iPod Connector - Dimensions: 178 x 100 x 160 (Width x Height x Depth) (mm) Note: Front panel protrudes 20 mm from dashboard.
- Certification: GS (Geprüfte Sicherheit), CE (Conformité Européenne)
- Manufacturer Ref: FCW8ODIVBXH4
Product Notes
- This model is compatible with most brands of GPS software - however hardware specific software such as Garmin may not run on this unit. As the wholesaler, Chinavasion provides the GPS-enabled hardware only, not the software. Chinavasion provides no warranty or customer support regarding GPS software. Chinavasion cannot provide downloads / links / advice regarding GPS software. Any software installation you undertake should be performed or supervised by a professional.
- Note: AM/FM Radio and Analog TV should work off your car's own antenna.
- Wonder if you can really do it yourself? Check this out - Information On Installing A Car DVD Player
Package Contents
- Model CVJY-C28 Car DVD Media Player with GPS and DVB-T Functionality
- Remote Control (CR2025 lithium battery included)
- 20 cm tall, extra powerful coil base DVB-T Antenna (300 cm long) with strong magnetic base
- Extra powerful GPS Antenna (300 cm long) with strong magnetic base
- Mini-USB to Female USB extension cable
- ISO Power/Output wire harness
- 2GB SD Card with Evaluation Software
- Apple iPod/iPhone cable
- Steering Wheel security extension cable
- Mounting Hardware
- User Manual - English
FAQ - Frequently Asked Questions
-
Whenever I try to insert or remove an SD card, the screen goes back up too quickly. What can be done about this?
Instead of pressing the eject disk button, lower the screen incrementally so there's enough room to access the SD card slot. -
You mentioned that this product is compatible with iPods and iPhones. Will my 3rd generation iPod Nano will work with it?
We tested iPod compatibility using a 3rd generation iPod Nano 4GB. Furthermore, a second generation iPhone 3g was used to test iPhone compatibility. -
When the DVD is playing I have trouble accessing the menu. What can be done?
The secret to menu access is to remember that by touching the video playing portion of the screen you bring up the menu. If you tap outside of the video area you adjust the screen. -
Your car DVD players are great, but the user manuals could do use some improvement. Any improvements there?
This is one of the best car DVD players we've tested, but more surprisingly the user manual is great too. We're sure you'll find it very helpful. -
Can this car multimedia system support USB drives and SD cards greater than 2GB?
In our tests, we loaded media onto a 4 GB USB thumb drive and connected it to the car DVD player using a mini SD / female USB extension cable. The unit didn't have any trouble accessing the files. We also loaded media onto a 4 GB microSD, put that into an SD card adapter, inserted that into an SD card reader and connected the whole assembly to a mini SD / female USB extension cable. No problems there. We also inserted a 8 GB SD card into the SD media card slot and this also went smoothly. -
What points of interest options are there?
The existing options include: airport, amusement park, ATM, auto service, automobile club, automobile dealer, bank, bar, bookstore, border crossing, bowling centre, bus station, business facility, casino, cemetery, church, cinema, city hall, civic centre, coffee shop, commuter station, convention centre, county council, court house, data centre, embassy, entrance/exit, ferry terminal, golf course, grocery store, guest house, hairdresser, high-rise building, higher education, holiday resort, hospital, hotel, ice skating rink, insurance, karaoke, library, marina, media centre, medical service, monument, mosque, motorcycle dealer, motorway restaurant, museum, named place, nightlife, park & ride, parking garage, parking lot, performing arts, petrol station, pharmacy, police station, post office, public sport airport, recreation area, rental car agency, research institute, residential area, rest area, restaurant, school, second hand cars, shopping, ski resort, sports centre, sports complex, subway station, synagogue, technology centre, telecom, temple, toll station, tourist attraction, tourist information, train station, and winery. You can also create your own. -
Does this cool in-car total solution support the Greek language?
The main menu system does not support the Greek language. If your GPS software however, comes in Greek then the GPS "Voice" and "Text" will be in Greek. Most popular GPS software titles come in a variety of languages. -
Are the magnetic bases of both the DVB-T and GPS antenna strong enough to be placed on a moving car?
Yes, the antennas come with very powerful magnets. Not as strong as Magneto's mutant powers, but pretty strong. They'll stay stuck on despite the rockiest ride. -
What GPS software comes with this car navigation powerhouse? Is it Route 66?
Evalution GPS software is included, but purchasing your own GPS software is encouraged.
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- Written By: M.W.
Visit the website: http://www.boutic.power-heberg.com
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Current Reviews: This product was added to our catalog on Monday 13 July, 2009.
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