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    SKU: PRE-1

    OSD PRE1Preamplifier, Phono Ready, Home Theater, Surround Sound, Recording

    Purchase OSD Preamplifier, Phono Ready, Home Theater, Surround Sound, Recording - Pre-1
    • Outdoor Speaker Depot SKU: PRE-1 osd-preamplifier-preamp-pre1
    • In Stock


      Compare at: $179.99
      You Save: $60

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    A preamp is a key component to experiencing true home theater surround sound and a critical element to recording music, yet few people really understand the function a preamp plays. OSD Audio's Pre-1 is a unique and, yes, affordable preamplifier that accomplishes the subtle audio tasks that transform an ordinary home theater surround sound system into, 'wow, I hear every detail,' from a dog barking, to the whooshing blades of a helicopter. A preamp delivers similar benefits to music recording by boosting the low-level output on microphones. Because mics generally have a weak output, adding a preamp will deliver a better recording signal level verses simply plugging the mic into a computer and standard recording gear. Preamps do more than add volume, however. Like the home theater experience, a preamp in recording can finesse the subtle 'color' of sound by adding tonal quality. Let's start with what a preamp is and then we'll cover the attributes of OSD Audios' Preamp-1 so you can make the wisest buying choice.

    What Is A Preamplifier and What Does It Do?
    Simply put, a preamp is a separate processor within the audio command chain that accomplishes detailed audio tasks. A decent home theater will typically have one or more amplifiers and an AV receiver. While an AV receiver has amplifier power, power is not its primary function. An AV receiver 'receives' audio and video signals from a variety of sources (TV, DVD DRV, etc.) and routes the signals to the speakers. Power is where the amps kick, which supply the juice needed to move the signal with enough amperage so your surround sound speakers produce the best sound for which they are designed. That should be enough, right? Well, not exactly. The amp may add power, but it can be a bit of a clod because that's all it's doing is add power. (Okay, audiophiles, we know it does more, but let's keep it simple). Enter the preamp. A preamplifier is a low-level amplifier. What that means is that it takes a line level signal (that's the strength of an audio signal used to transmit analog sound between audio components such as CD and DVD players, television sets, audio amplifiers, and mixing consoles) and amplifies it enough to drive the power amplifier to its rated output. If an amp is receiving a signal at its rated output, it will perform better and your surround system will pick up detail you never thought possible. The same can be said in sound recording where an audio interface enhances the sonic capabilities of a computer. While an audio interface includes an internal preamp, an external preamp gives you more control over tonal quality.

    Home Stereo/Home Recording Pre-Amplifier
    There are many preamp manufacturers that range from bizarrely cheap to bizarrely expensive. We look at our OSD Audio Preamp-1 Home Stereo/Home Recording Pre-Amplifier as the middle ground, or an affordable preamp that adds front-end system control to two or multi-channel audio systems and home recording systems without having to load up on credit card debt. OSD Audio Preamp-1 home stereo/home recording Pre-Amplifier is not shy on features for the price, and we encourage you do research the specs. Our preamp provides four selectable unbalanced analog RCA inputs, Phono, AUX1, AUX2 and CD/DVD and a '' Mic input jack on the front panel with adjustable mic level control. Other front panel variable control knobs feature three tone controls: Bass, Mid and Treble, plus Balance, Master Volume and Loudness Contour Knobs with Min to Max settings. Additional front panel controls include Power Switch, Tape Loop, Mono/Stereo, Low Filter and Mute Buttons. We back this preamp with a 2-year warranty because the Preamp-1 Pre-Amplifier is as solid as it gets.

    • Mic Level Control
    • Bass/Midrange/Treble/Loudness/Balance Control
    • Microphone Jack Input
    • Input Selector
    • Low Frequency Filter
    • Mute
    • Frequency Response: 5Hz - 30kHz +0 -3dB
    • Phono Pre-Amp for moving magnet cartridges

    Warning: California's Proposition 65


    This product can expose you to chemicals, including vinyl chloride, which is known to the State of California to cause cancer. For more information, go to

    Input Sensitivity/Impedance
    • Mic 0.5V/600 Ohms 
    • Phono 3mV/47k Ohms 
    • Tape,Tuner, CD/DVD, Aux 150mV/47k Ohms 

    Output Level/Impedance 
    • Tape Rec 150mV/100k Ohms 
    • Pre Output 500mV/47k Ohms 

    Total Harmonic Distortion 
    • Mic less than 0.4% 
    • Phono less than 0.4% 
    • Tape,Tuner, CD/DVD, Aux less than 0.2% 

    Signal to Noise Ratio 
    • Mic more than 50dB 
    • Phono more than 70dB 
    • Tape,Tuner, CD/DVD, Aux more than 80dB 

    Frequency Response 5Hz - 30kHz +0 -3dB 

    Tone Control 
    • Bass ± 12dB @ 100Hz 
    • Midrange ± 6dB @ 1kHz 
    • Treble ± 12dB @ 10kHz 

    Loudness Control: +4/0/+2dB @ 100/1k/10kHz 
    Power Requirements: AC 120V 60Hz / 220V 50Hz 
    Dimensions: 18.9" x 2.36" x 8.25
    44 Questions asked
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    What's on your mind?

    Dexter • 12/17/2019, 2:17:43 PM I am looking for a surround preamp that outputs 5.1 or better, this only has a stereo output. Do you sell a preamp with surround sound outputs that can be used to drive a multi channel amplifier. Would be great if it were wifi capable. Any suggestions would be appreciated, thanks.
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Dexter: I found a couple you might want to check out. The TECHNICS DIGITAL SURROUND PROCESSOR SH-AC500D was a used 5.1 pre-amp processor for $250.00. For something new; the Nu-Force18 (499.99) and Emotiva MX700 ($699.00). There are Audio Video processors that also feature 7.2 Preamp output option but start at $800 and up (check out the DENON AVRX3400H). But id needed two channel you will not find a better value than our Pre One now featuring a 1.5mv output. Good Luck TL/5059
    Dexter • 12/17/2019, 2:17:43 PM I am looking for a surround preamp that outputs 5.1 or better, this only has a stereo output. Do you sell a preamp with surround sound outputs that can be used to drive a multi channel amplifier. Would be great if it were wifi capable. Any suggestions would be appreciated, thanks.
    Customer Service • 12/17/2019, 2:17:43 PM
    HI Dexter: You are correct this is only a 2 channel stereo preamp. You going to have a problem finding a dedicated S
    Mark • 12/17/2019, 2:17:43 PM Hello! My 1980's era Carver C-2 pre-amp has failed. Its paired with a Carver M-200t magnetic field power amp. Would this amp make a good replacement for the C-2 to use in conjunction with the M-200t? Thanks in advance for info!
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Mark: The new Pre One should do the job but I would not consider it a direct replacement. It does have some nice features including built-in Phono Preamp, Mono switch, Microphone mixer, Bass treble, midrange and Loudness controls. It also features a stereo/mono switch, Tape monitor loop (good for 2 channel Equalizers) and a key new feature: 1.5mv output. It should be selling for twice the price so don't let that scare you off. TL/5105
    Ackerman • 12/17/2019, 2:17:43 PM I own one and have a Honorable hum/open ground in the unit. My stuff is working but with the replacement per,-amp it's HUN-CITY. Used within 6" of any component the per-amp protrudes HUM FROM HELL!!!! Well it's worthless for me! Can't put it in my rack!!!! With out the JUNK, my system works without hum/noise and kicks A.. Total Electronic Junk!
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Ackerman: Did you return the unit to get a replacement or did you just replace it with something else? Did you return the unit under our 30-day performance Guarantee? TL/5113
    Customer Service • 12/17/2019, 2:17:43 PM
    HI John: The Pre-One would work just fine with your Spectro Acoustics 202. It would have an unbalanced Analog connection between the Pre-One and the Spectro Amplifier using an RCA Stereo Patch Cord. The new Pre One now features a 1.5 Volt output as well. Good luck TL/5161