Thanks for visiting our site!
We Welcome you to browse our website and use the search feature if there is something in particular you are looking for.
Check Ebay for Beam Laser products.
How much watts would a laser beam from Mars have to be, in order to be detectable from Earth?
A typical laser pointer has a 5 milliwatt output. The most powerful laser weapon developed has a 100 kilowatt output.
Detectable by the best telescope in the world or in Earth orbit.
What's the minimum energy output a laser would have to be in order to be detected from Mars?
"Detectable" is a funny thing. If a 1 watt laser (for example) could not be detected with 1 hour of staring, it might be detectable with 10 hours. We can already detect signals carried by just a few 100 photons per second (Lunar Laser Ranging). At the typical distance to Mars, a laser there would have to send about 2.6 x 10^9 photons per second. That's only about 30 nanowatts.
On the other hand, at 20 nanowatts, the information rate would be less than 1 bit per second. The noise from the vibration of the laser (from winds and Mars quakes) would blur the signal so much, the laser would not be detectable any more. Better go up to 20 microwatts, and get about 30 bits per second. Still very slow.
When we bounced radar signals from Earth to Mars and back, we had to stare at Mars for about 30 minutes to detect the return signal.
Thanks for visiting!
Filed under Pro Audio Equipment by on Apr 4th, 2010. Comment.
Thanks for visiting our site!
We Welcome you to browse our website and use the search feature if there is something in particular you are looking for.
Check Ebay for Rgb Dmx products.
![]() |
No items matching your keywords were found.
The 107 Club, Crawley, Sussex, UK - Sound & Lighting Installation
When we first visited the site for the 107 Club it was simple an empty shell. It was difficult to picture how it would be transformed into a fully functioning sussex nightclub, but after three months of hard work the venue opened its doors to the public with great success.
The brief was straightforward: High Quality sound and an impressive nightclub lighting show to match.
The 107 Club's Sound System
Starting with the sound system, we opted for a sound system by Funktion One. Renowned for their high quality and visually impressive systems, we felt that Funktion One would offer the most suitable system for the venue. On the dancefloor the sound system comprised of four Funktion One Res2SH speakers flown from the ceiling, with two Funktion One F221 twin 21” bass bins. The Funktion One Res2SH speakers offer a fairly narrow dispersion, which allowed us to concentrate the sound on the dancefloor area, without spilling out too much into the bar areas. The speakers were powered by two MC² amplifiers, the E25 and E45. These were in turn controlled by an XTA DP424 System Processor and an XTA C2 Compressor Limiter, with a Formula Sound FF6000 mixer in the DJ booth.
The peripheral sound (surround in-fill system) was slightly more complex, with 7 additional separately defined areas. Firstly, there were four individual VIP rooms, each requiring its own Volume Control. For these a Bose system was specified, giving a high sound quality from compact enclosures. The first three rooms utilised the Bose DS100 Surface Mount speakers, with the last room having a Bose Freespace 3 system. Each room was also fitted with a Cloud RL1 remote volume control unit, allowing the customers to control the volume in their own room’s independently.
Next were the upstairs and downstairs bars, and the secondary dancefloor. For these areas we opted for a number of (EV) Electrovoice ZX1 speakers. Powered by QSC GX3 and GX5 amplifiers, these speakers offered a perfect solution of good quality but not overpowering sound for the peripheral areas.
The 107 Club's Nightclub Lighting System
Moving on to the lighting system, we had the challenge of creating something impressive but unique, in order to give the venue a way of standing head and shoulders above its competitors. With its fairly high roof, the 107 Club was a perfect candidate for an LED ceiling. After a few discussions and alterations, it was decided that we would construct the custom LED matrix to run the whole length of the ceiling, and down one of the walls, opposite the DJ box. Covering a total area of 90 square metres, this would provide one of the most impressive nightclub lightshows in the area.
The ceiling itself was made up of 1850 RGB LEDs, covering the 18m long and 5m wide area. Each of the LEDs is individually controllable, allowing us to create an almost infinite array of patters, graphics and effects. Within the area of the LED ceiling, we also fitted a number of conventional nightclub Lighting Effects to add even more impact to the lightshow. These comprised of 8 Robe ClubSpot 300 CT moving heads, and 8 Martin Atomic 3000 strobes. Also added were two custom UK built 300mW green lasers, a Martin Club Fog system and a Martin AF-1 fan to distribute the smoke. To light the stage area, two Robe ClubWash 300 CT moving heads were fitted, and two additional Robe ClubSpot 300 CTs were placed over the secondary dancefloor. Peripheral Led Lighting was also added, with 48 Octostip LED battons placed in the bar area and edging the balcony.
Control for the lighting was provided by a computer based software system, eCue. This gave us the flexibility to program the entire system on the one computer, with different areas being able to be controlled separately. It also gave us the ability to run graphics and low resolution video on the LED ceiling. The DMX was outputted using seven eCue Butler devices, giving us a total of fourteen universes of DMX.
To finish off a visual system was added comprising of three LCD projectors running from a computer loaded with Arkaos Midi. Two custom screens were constructed at the edges of the dancefloor, while a third electrically controlled rear projection screen was suspended at the edge of the dancefloor. This allowed the venue to close off a section of the club by lowering the screen and using it as a divider. As a rear projection screen was used, it allowed customers both sides of the divider to see the visuals and graphics being projected.
Finally
Overall, the finished product was just as impressive as we had hoped. All elements worked together to create a complete clubbing experience, with a new high standard being set for what is expected of the late night industry.
About the Author
Jon is a technical nightclub lighting designer for Showtec Lighing & Sound and deals with most LED lighting & nightclub installation projects.
Thanks for visiting!
Filed under Pro Audio Equipment by on Mar 25th, 2010. Comment.
Thanks for visiting our site!
We Welcome you to browse our website and use the search feature if there is something in particular you are looking for.
Check Ebay for Speakon Speaker products.
![]() |
![]() 2 50 FT 1 4 speakon speaker cables DJ PA 50FT PRO AUDIO US $6.45
|
![]() NEW 2 25 PAIR SPEAKON PRO AUDIO SOUND SPEAKER CABLES US $5.50
|
![]() 2 Neutrik Speakon Connect Speaker Cables 25ft US $15.50
|
![]() 2 50 FT speakon to 1 4 speaker cables DJ PA 50FT PAIR US $34.95
|
![]() 10 PRO AUDIO SPEAKON 4 P PANEL MOUNT SPEAKER CONNECTORS US $1.00
|
![]() Planet Waves Speaker Cable 50 SpeakOn to SpeakOn US $75.00
|
![]() Pro Co 14 gauge 3 foot Dual Speakon Speaker cable $600 US $6.00
|
![]() 2 speakon to 1 4 25 ft PA DJ pro audio speaker cables US $17.00
|
![]() 50 Speakon to Speakon Speaker Amp Cable 12 Gauge PAIR US $58.95
|
![]() Pair of 25 ft Speakon to 1 4 Quarter Inch Speaker Cabl US $20.50
|
![]() NEW 14 GA 25 ft speakon 1 4 Pro audio DJ speaker cable US $14.75
|
![]() 2 x Neutrik Speakon speaker cable ends plugs NA4LJ US $1.00
|
![]() 1 4 to Speakon Speaker Cables 100 Feet 12 Gauge PAIR US $68.50
|
![]() 2 Pack 3 foot 12 g speaker cable Redco Neutrik Speakon US $32.00
|
![]() 8 x Speaker Cables with Neutrik Speakon Connectors US $79.99
|
![]() 100 Speakon to Speakon Speaker Amp Cable 12 Gauge PAIR US $69.95
|
![]() Two OSP 100 Speaker Cables Speakon Type US $79.98
|
![]() 2 OSP 100 Speaker Cables Genuine Speakon Connectors US $119.98
|
![]() Pair 30 10 Gauge Speaker Cable Horizon Neutrik speakON US $115.00
|
![]() 2 16 GAUGE SPEAKON TO SPEAKON SPEAKER CABLES 50 FT 50FT US $15.00
|
![]() 2 25ft 12G Speaker Cables NL4FC Speakon Banana 37 432 US $69.99
|
![]() 2 25 Feet Speakon to 1 4 Speaker Cable PA DJ Band NEW US $39.99
|
![]() New 3 foot 12 g speaker cable Redco Neutrik Speakon US $17.99
|
![]() 3 12 gauge Redco speaker cable wire Neutrik speakON US $17.99
|
![]() 50 12 gauge Redco speaker cable wire Neutrik speakON US $57.00
|
![]() 50 10 Gauge Speaker Cable Horizon Neutrik speakON US $85.00
|
![]() Coleman 10 AWG 10 2 Speaker Cable Neutrik Speakon 10 US $53.00
|
![]() 4 Conductor Speakon Comp Speaker Cable 50 Feet 14GA US $68.00
|
![]() Coleman 12 AWG 12 2 Speaker Cable Neutrik Speakon 15 US $49.00
|
![]() 1 4 TO Speakon Speaker Cables 50 Feet 12 Gauge PAIR US $49.75
|
![]() NEUTRIK 1 4 INCH FEMALE TO SPEAKON SPEAKER ADAPTOR US $7.95
|
![]() 2 PRO 1 4 speakon 25FT SPEAKER CABLES 14 GAUGE WIRE 25 US $24.95
|
![]() Premium 4 Core Speaker Cable Speakon 13AWG 12m US $58.62
|
![]() New 5 foot 12 g speaker cable Redco Neutrik Speakon US $19.99
|
![]() Pair 50 Speakon to Speakon Speaker Cables PA DJ 14 Ga US $69.99
|
![]() 2 50 FEET SPEAKON TO BANANA 12 GAUGE SPEAKER CABLE US $69.95
|
![]() 30 10 Gauge Speaker Cable Horizon Neutrik speakON US $65.00
|
![]() 2 speakon to 1 4 50 ft PA DJ pro audio speaker cables US $25.00
|
![]() Swamp Speaker Cable Speakon plugs 15AWG 150cm US $9.01
|
![]() NEW PYLE PRO AUDIO 12 GAUGE MALE SPEAKON SPEAKER CABLE US $22.90
|
| Powered by phpBay Pro |
Help with hooking up a Powered Subwoofer?
I have a stereo system set up at home where I play music through my computer and it comes out of the 1/8th inch jack and I have a cable that switches that to two 1/4th inch jacks that go into 2 inputs of a crown ce 2000 Watt Amplifier that I have. Then I have Two Speakon cables which run out of two different outputs to two Jbl Jrx 115 Speaker Cabinets I have. I am thinking of adding a Powered subwoofer into the setup and have no idea what equipment I need to go about doing that, since its powered theres no need to go through the amplifier. Also the amplifier only has the two inputs and two outputs and no special connection for a subwoofer at all (let alone a powered one). I am thinking I will need something between the 1/8th jack on the computer and the two 1/4 inch jacks on the amplifier that can send out a signal to the powered subwoofer, but then still send out the two output channels to the amplifier (so its still stereo). Any idea what equipment is best for doing this?
You don't want to send the lows to your JRX115s if you're using a subwoofer, or two subwoofers. It causes cancellation problems which makes your bass sound quieter. You want the lows going to your sub, or subs & the highs going to your JRX115 speakers.
I posted your question here.
http://www.djforums.com/showthread.php?p=1070444#post1070444post1070444
"He can use a crossover or get a 5.1 soundcard, which has a crossover built in."
- Bill Fitzmaurice
http://billfitzmaurice.com
Thanks for visiting!
Filed under Pro Audio Equipment by on Mar 24th, 2010. Comment.
Thanks for visiting our site!
We Welcome you to browse our website and use the search feature if there is something in particular you are looking for.
Check Ebay for Mic Input products.
![]() |
![]() Presonus Digimax FS Mic Preamp ADAT Input Expander 003 US $426.95
|
![]() BEHRINGER XENYX1002 10 INPUT 2 BUS MIXER W MIC PREAMP US $40.00
|
![]() Behringer Eurorack UB502 5 input 2 bus mic line mixer US $12.50
|
![]() BEHRINGER 5 INPUT PRO MIXER MIC PRE AMP EQ XENYX 502 US $49.95
|
![]() Low Level Audio Signal Mic Input Transformer on PCB US $10.00
|
![]() NEW PROFESSIONAL DJ MIXER 8CH Mic Line 16 INPUT M8 US $151.54
|
![]() JENSEN TRANSFORMER JE MB D MIC PRE SPLITTER ISO INPUT US $40.00
|
![]() Behringer XENYX 1202 12 Input 4 mic 4 stereo 2 Buss US $76.99
|
![]() Behringer XENYX 1002 10 Input 1 mic 4 stereo 2 Buss US $67.99
|
![]() Behringer XENYX 502 5 Input Mixing Board w Mic Preamp US $49.95
|
![]() Bogen Line MIC Input Actively Bal Screw Term LMM1S US $47.33
|
![]() Vestax PMC 05 06 07 Headphone PMC 05 Mic Input Jack US $15.00
|
![]() Vestax PMC 07 PMC07 Pro Mic Input Jack US $15.00
|
![]() NEW PROFESSIONAL DJ MIXER 8CH Mic Line 16 INPUT 8M US $151.54
|
![]() Bogen MIC2S Mic Input Electr Bal w Screw Terminals US $42.33
|
![]() Bogen MIC1S Mic Input Trans Balanced w Screw Terminal US $57.43
|
![]() Bogen MIC2X Mic Input Electr Bal w XLR Connector US $42.33
|
![]() Bogen MIC1X Mic Input Trans Balanced w XLR Connector US $57.43
|
![]() Pro DJ MP3 USB SD Card Player W Remote Mic Input US $128.67
|
![]() 8XLR MIC INPUT FLOOR BOX FOR STAGE AUDIO SOUND SYSTEM US $89.99
|
![]() Altec 1781AT MIC INPUT MODULE FOR 1700C 1707C 1715C US $49.50
|
![]() TOA D 922E 2 Mic Line Input Audio Module for D 901 D901 US $50.00
|
![]() Yamaha N8 Mixer 8ch 4 Mic 2 Stereo Line Input US $799.95
|
![]() Yamaha N12 Mixer 12ch 8 Mic 2 Stereo Line Input US $1,199.95
|
![]() Behringer XENYX 2442FX 24 input mic line mixer FREE SH US $349.99
|
![]() OSP 4XLR2SPEAKONS MIC INPUT FLOOR BOX FOR STAGE SOUND US $79.99
|
![]() OSP 6XLR2 SPEAKONS MIC INPUT FLOOR BOX FOR STAGE SOUND US $89.99
|
![]() OSP 8XLR2 SPEAKONS MIC INPUT FLOOR BOX FOR STAGE SOUND US $99.99
|
![]() Yamaha M24 14FX Mixer 24 Input 16 Mic Inputs US $909.00
|
![]() 4XLR MIC INPUT FLOOR BOX FOR STAGE AUDIO SOUND SYSTEM US $69.99
|
![]() 6XLR MIC INPUT FLOOR BOX FOR STAGE AUDIO SOUND SYSTEM US $79.99
|
![]() Aviom 6416M Mic Input Module 16 Channel Pro64 Series US $6,019.99
|
![]() Aviom AN16 I M Microphone Input Module Convert 16 Mic US $2,140.99
|
![]() Behringer XENYX 502 Mixer 5 Input 1 mic2 stereo 2bus US $44.99
|
![]() Yamaha PM1000 Mixer Input Channel Mic Pre EQ Modded US $50.00
|
![]() Phonic Powerpod 620 200 W 6 Mic 8 Line Input Mixer US $343.62
|
![]() Behringer XENYX 1622FX 16 Input 4 mic 2 Aux Sends Re US $199.99
|
![]() Behringer XENYX 1202FX 12 Input 4 mic 4 stereo 2 Bus US $94.99
|
![]() Behringer XENYX 2442FX 24 Input 10 Mic w 4 Aux Sends US $313.99
|
![]() Rane MLM65 6 Input Mic Line Mixer US $940.99
|
| Powered by phpBay Pro |
How do I connect an MP3 output to the mic input on a PA system?
I have a PA system that plays tunes from internal memory. It has 1 microphone input only. I want to connect the output of the MP3 player to the mic input but realise the power from the MP3 is going to be too big as a mic has only a small electrical output.
The MP3output/mic input is 3.5mm
You need to get a stereo Male Adapter with a 1/4 jack female on it and a Guitar Cable at Radio Shack or some electronic store.
Thanks for visiting!
Filed under Pro Audio Equipment by on Mar 22nd, 2010. Comment.


US $299.99























































































































