Pro 2CH Pre-Amplifier
What exactly is an amplifier?
An amplifier is an electrical component that increases a signal, usually by increasing the voltage and the current.
What does it mean to operate an amplifier in Bridge Mode as opposed to Stereo Mode?
Frequently amplifiers will operate in two modes, Bridge mode or Stereo mode. When an amplifier is operating in Stereo mode each channel is functioning independently, with a single input powering a single channel. Bridge mode, also referred to as parallel mode, combines two output channels which are powered by a single input. This will result in a voltage output twice that of an individual channel operating in Stereo mode.
Which Technical Pro Amplifiers can operate in either Bridge or Stereo mode?
Technical Pro offers multiple amplifiers which function in either Bridge or Stereo mode. Currently every model in the L-Series and Slimpro Series is bridgeable. Additionally, the PP-2000 and PP-3000 are available in Bridge or Stereo mode.
What is the difference between a crossover and low-pass filter?
A typical speaker can’t properly drive all the sounds in the audio spectrum. A crossover takes the signal and separates it into frequency bands, low frequencies, mid frequencies and high frequencies. A low-pass filter, which can be found on the Sub and Nuke subwoofers, eliminates or cuts off the high frequencies allowing only low frequencies to continue to the subwoofer. A low-pass filter is typically adjustable allowing the user to choose which frequencies to continue to the subwoofer.
What is a Frequency Response?
The frequency response is the range in Hertz (Hz) that a device can reproduce versus amplitude. The widely accepted frequency range of human hearing is 20Hz-20kHz.
What does impedance measure?
Stated in ohms, impedance measures the resistance of a device to an Alternating Current (AC). Put simply, it measures how easily a device will conduct a current.
What is Sensitivity?
Sensitivity is the minimum power an amplifier must supply to a speaker so the speaker can produce satisfactory volume ratings.
How do I hook up speakers to the amp?
On the rear of every amplifier there are either one or multiple output jacks. The outputs vary by model, but typically will be in the form of RCA, Speakon, Balanced XLR, and Banana binding post. Simply choose the output type on your amplifier and connect it to the input on your speaker.
What exactly is the Hybrid amplifier and what makes it so special?
The Hybrid is the all in one solution for any user. Whether you’re looking for a home receiver or a power amp to power up to four speakers in your club, the Hybrid is up to the task. It’s the versatility of the Hybrid that makes it so unique. The Hybrid is a four channel amplifier with a built-in tuner, preamp, mic, mixer and crossover. Having all these features built-into one sleek package puts the Hybrid in a class above the rest.
When hooking up an amplifier to a PC the volume is very low, why?
In this particular case, when hooking up an amplifier to a PC, the volume is being controlled by the computer speakers. Therefore to adjust the volume, the user must adjust the volume on the actual speaker and not on the amplifier.
If an amplifier goes into “Clip Mode”, how long should I wait before turning it on again?
If your amplifier goes into “Clip Mode” typically waiting 2-3 minutes before turning it on again is suffice.
When loading amplifiers into a Rack, how much space should be left between each amplifier to allow the amplifier to “breathe”?
All Technical Pro amplifiers, with the exception of the Slimpro, and vented and cooled from the back, so rack spacing should not be an issue so long as the back of the amplifier is not covered. The Slimpro amplifier vents from the roof of the unit and therefore about .5 inches should be left exposed on the top of the amplifier.
What is the difference between Technical Pro’s Powered and Passive Speakers?
A powered speaker is just like a passive speaker with one important exception, a built-in amplifier. With a built-in amplifier you can connect your source (ex. CD player) to a preamp and then straight to your speaker. The amplifier in the speaker will then drive the sound.
Can an iPod be connected to any of the Technical Pro amplifiers?
Yes, many if not all products work with iPod just check to see if it has a aux input and your all set!
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Technical Pro’s history traces back to 1971 with a retail electronics store in the South Bronx section of New York. In an era when Brooklyn was distilling beer and New York baseball was more than just a sport.
As the word got out that these guys really knew their stuff about audio and entertainment systems, their small store in the Bronx, began to thrive. Having a keen eye for innovative designs, and a deep rooted passion for music, they saw a void in the audio market.
Performance of audio equipment fell miserably short of customer’s expectations - real professional products were simply not being offered to the average consumer. Rather than selling other company’s “cookie cutter” product, they realized that the only viable approach was to start from the ground up, and totally redesign audio product with the end user in mind.
While they were turning their passion for sound into a reality, they had no idea what they were starting would eventually become one of the industry’s most respected and innovative audio brands. Their unprecedented approach to sound reproduction came much closer to the essence and emotional impact of live music and won immediate acclaim. The quest for better sound was on.
1990 Technical Pro began wholesale its product to other retailers, operating out of its own store on Delancey Street. Word spread. Retailers began flocking in. Eventually, the demand for product made it impossible to fulfill orders out of their retail location. The time to expand to the next level had arrived.
2010 and beyond: Never resting on their laurels, Technical Pro expanded into pro, sound-stage and portable audio, with the same approach they’ve used from the beginning – offer superior sound and innovative features to anyone who shares their passion for music, from consumer to professional.
If you are in the market for long lasting multiple use pre-amp that can be easily added to your audio system, to your mobile set up, recording studio or club venue the Pre50 from Technical Pro™ is the go-to choice for a professional 2 channel pre-amplifier. The engineers at Tpro built this unit with two things in mind, build it to last and design it to achieve the highest quality sound output. And indeed they did!
Connect up to 4 audio sources on the back panel using the RCA & AUX inputs. Connect a cd player, tuner, turntable or any other RCA input and switch between your sources by using the front panel controls.
The SD Card and USB flash drive inputs on the front panel of the PRE50, allow you to connect your portable audio directly to the pre-amplifier.
So what is so special about a USB flash drive / SD Card input? Like most of us, you probably have an ever-growing library of mp3 audio files on your computer or laptop that you want to listen to while sitting on the comfort of your couch. Have you ever tripped over a wire connected to your computer or laptop and then dive onto the floor to save it from crashing and breaking into pieces?
|Dimensions||19'' L x 10.5'' W x 1.75'' H|
|Inputs||RCA (3 audio sources), AUX (1/8'') USB flash drive, SD Card|
|Outputs||RCA (2 audio sources), balanced XLR|
|Mic Input||Balanced XLR|
|Card Support||USB & SD Card maximum size: 32GB|
|Playback||.mp3, .wav, .wma files from USB drives and SD Cards|
|Records||.wav files onto USB Flash Drive or SD Card from RCA inputs|
|128 kbps / 44.1 KHz sampling rate on .wav file recordings|
We can all agree the fewer wires in our sound system the better. A USB flash drive / SD Card lets you carry around thousands of .mp3, .wav & .wma audio files in the palm of your hand. Simply connect the USB flash drive / SD Card to the computer and copy the files onto the USB flash drive / SD Card. Disconnect it from the computer and connect it to the PRE50 and the unit will automatically begin playing the files from the USB flash drive / SD Card. All while keeping your laptop perfectly safe.
The USB flash drive and SD Card can handle a maximum size of 32 GB & play your .mp3, .wav & .wma files from your USB flash drive or SD Card through this pre-amplifier. Playback features for the USB flash drive / SD Card inputs include play, repeat and random playback.
And you know the engineers at Technical Pro did not stop there. The USB flash drive and SD Card inputs can also capable of recording onto a USB flash drive or SD Card with empty space on it. That means you can record from the AUX or RCA inputs directly onto the USB flash drive / SD Card.
The microphone input on the front panel will accept a 1/4" or XLR connector. Each input (mic or RCA line input) provides a time based echo effect with adjustments for time and repeat. Find they perfect tone by using the bass, mid, treble and balance controls adjusting your sound to your desire. Having these dynamic controls available to you will give you the tools you need to adjust your music to sound perfect in any room or venue!
Easily integrated into any audio set up, use the RCA or balanced XLR outputs and connect this unit to any system. Plug in a set of headphones and preview your output and adjust your dynamic controls insuring the exact sound you want before sending it out to the audience. Use the tape monitor out and achieve a precise output to your recording device. Complete with a mono, mute, low cut, and loudness control adjust your frequencies based on your performer or your room design.
With a price that can’t be beat and a professional design that is synonymous with the name Technical Pro, the Pre50 is the best choice for a professional 2 channel pre-amplifier! Whether you are using this to record in your studio or in a live performance situation, you can feel secure you have all of the features you need built with a long lasting, rugged design!
Technical Pro’s groundbreaking new approach to industrial design incorporates advanced technology and striking good looks with rugged construction and a long list of features, providing years of audio enjoyment.
Speakers are the backbone of every audio system. At Technical Pro we’ve worked with sound engineers to create the ideal speaker for every situation. Whether you’re playing music or making announcements, Technical Pro speakers perfectly deliver sound to send you on an audio adventure.
This product is built with the same quality found in all Technical Pro equipment ensuring it follows you from gig to gig over an extended lifespan. We stand by our work and every Technical Pro product comes with a one year warranty.