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  • Focusrite ISA 430 MKII Producer Pack Single Channel Mic Preamp/Channel Strip

    Focusrite ISA Microphone Pre-Amp. Classic Focusrite EQ design; an expanded version of the original ISA 110. Proprietary Focusrite discrete Class A VCA Gate and Expander designs. Mic Pre Masters. Mic Pre Masters Stems.
    £272.00
    11 bids
    £57.53 postage
    Ending 22 Oct at 2:41PM BST5d 19hBrand: FocusriteType: Channel StripCustoms services and international tracking provided
  • Audio Maintenance Neve style unbalanced to balanced preamp Carnhill

    -10 dB unbalanced to +4 dB balanced converter
    £365.00
    0 bids
    £33.78 postage
    Ending 22 Oct at 10:22AM BST5d 15h
    or Best Offer
    Type: Instrument PreampCustoms services and international tracking provided
  • Behringer ULTRAGAIN PRO-8 DIGITAL ADA8000

    Item has been tested for power and turns on, but I do not have any cables or an ADAT interface to test further. Last time tested it was working fine but sold as is
    £38.00
    2 bids
    £44.14 postage
    Ending Wednesday at 2:11PM BST19h 13mBrand: BehringerCustoms services and international tracking provided
  • Phono preamp stereo turntable rca pre amplifier to line level amp riaa eq

    Designed for low noise with RIAA compensation. Compensation- RIAA with deviation less than 1dB. Amplifies signals from low current phono sources. Inputs/Outputs: Phono (RCA) sockets. 1 x Pro Signal phono preamp.
    £15.70
    Top Rated Plus
    £5.90 postage
    Type: Phono Preamp
    459 sold
  • Golden Age Project Pre-73 Jr Plus

    It features no integrated circuits for optimal signal integrity, ensuring minimal operational noise. It also boasts switchable Phantom Power and absolute phase for added versatility. The gain range on the preamp spans from 20 – 70dB, giving you more than enough breathing room for dialing in your required levels.
    £137.00
    6 bids
    £30.72 postage
    Ending Wednesday at 10:06AM BST15h 7mBrand: Golden Age ProjectCustoms services and international tracking provided
  • TLA Audio 6051 Mono Valve Processor (Fully Working) (Good Condition)

    £150.00
    1 bid
    £30.89 postage
    Ending Friday at 6:38PM BST2d 23hCustoms services and international tracking provided
  • Art Two Channel Tube Preamp

    A R T 2 channel valve preamp with compressor
    £40.00
    Brand: Art
    £17.96 postage
    Customs services and international tracking provided
    or Best Offer
    34 watching
  • Warm Audio WA273-EQ British Style Preamp w/ EQ - BSTOCK

    Single Channel, Class A, 1073-style British Microphone Preamp with EQ. WE HAVE AN EX REPAIR WA-273EQ PREAMP FOR SALE. THE UNIT HAD A GROUND NOISE ISSUE THAT HAS NOW BEEN FIXED AND 100% QC TESTED. IN GREAT CONDITION AS SHOWN IN THE PICTURES.
    £1,280.00
    Type: Microphone Preamp
    £54.46 postage
    Customs services and international tracking provided
    or Best Offer
    19 watching
  • Warm Audio WA-412 4-Channel 'Classic American style' Preamp - BSTOCK

    WE HAVE AN EX REPAIR WA-412 4 CHANNEL PREAMP FOR SALE. THERE WAS A LOOSE PART INSIDE THE CHASIS WHICH HAS NOW BEEN REMOVED. ITS IN GREAT CONDITION AS SHOWN IN THE PICTURES. IEC POWER CABLE INCLUDED.
    £1,050.00
    Type: Microphone Preamp
    £47.18 postage
    Customs services and international tracking provided
    or Best Offer
    11 watching
  • Telefunken V672 Vintage Preamp with DI Input compared to Neve 1073

    Not a great recording, but you can get the picture. You can compare it's sound to Neve 1073 Microphone input (with Pad engaged) accepts line levels. All original, just recapped (with best quality capacitors).
    £999.00
    From Switzerland
    £51.00 postage
    or Best Offer
  • A Designs P1 (Pre-Owned)

    The mojo of the Pacifica in 500 series. And if you're building a lunchbox with drum recording in mind, a pair of P-1s is a superb choice for overheads when you want to capture the entire kit along with the sizzle of the cymbals.
    £595.00
    £35.00 postage
  • Neve 1073 Preamp + EQ with rare Vintage Marinair Transformers (icluding Octal)

    Pair of Neve 1073s in Two Channel Rack Housing. You won't find a better sounding 1073!
    £5,555.00
    0 bids
    £96.00 postage
    Ending Thursday at 2:44PM BST1d 19hFrom Switzerland
  • A Designs Reddi Tube Direct Box preamp

    This an A Designs REDDI Tube Direct Box. It's in pristine condition. Bought new from KMR Audio, I have been the sole owner.
    £600.00
    Customs services and international tracking provided
    £42.42 postage
    or Best Offer
  • Avalon VT 737 SP Tube Channel Strip Mic Pre DI Compressor EQ

    The high and low frequency bands provide the smooth characteristics of an all passive design, while the dual mid bands include variable frequency and switched Q-width selection. The enhanced range of the mid bands is extended into the high and low bands by the use of X10 frequency multipliers.
    £1,500.00
    Brand: Avalon
    £69.90 postage
    Type: Channel Strip
    12 watching
    Customs services and international tracking provided
  • Warm Audio WA-73 British Style Preamp - BSTOCK

    The 1073 was the perfect console preamp; a versatile tool that could be used with all different kinds of microphones and a variety of sound sources. WE HAVE AN EX REVIEW WA-73 PREAMP FOR SALE. IN GREAT CONDITION AS SHOWN IN THE PICTURES.
    £500.00
    Type: Microphone Preamp
    £39.81 postage
    Customs services and international tracking provided
    or Best Offer
  • Studio Esprit Master 2073 Vintage British Dual Preamp / Equalizer (No. 1)

    Amazingly musical EQ. Local pickup can be arranged in London.
    £1,599.00
    From Switzerland
    £50.00 postage
    or Best Offer
  • Telefunken V672 Vintage Preamp with DI compared to Original Neve 1073

    Not a great recording, but you can get the picture. You can compare it's sound to Neve 1073 All original, just recapped (with best quality capacitors). Microphone input (with Pad engaged) accepts line levels.
    £799.00
    0 bids
    £51.00 postage
    Ending Thursday at 2:44PM BST1d 19hFrom Switzerland
  • Warm Audio Tonebeast TB12-500 Series Mic Preamp - BSTOCK

    The Tone button which changes the load on the input impedance from 600 Ohms to 150 Ohms. Switching this button lets you optimise the sound of your mic or DI without EQs. The Warm Audio TB12 500 is possibly one of the most if not THE most versatile mic preamp available in the 500 Series format.
    £400.00
    Type: Microphone Preamp
    £22.13 postage
    Customs services and international tracking provided
    or Best Offer
  • Vintage British 60s Dual Chan Valve Tube Mic and Line Pre unit Analogue Addicts

    Now getting very hard to find. This gives a "brighter" for "Hifi" type character which sounds very sparkly and clear. 4 x ECC83 valves, 1 x ECC82 valve.
    £899.99
    £69.99 postage
    or Best Offer
  • Telefunken TAB V376a Vintage Preamp

    TAB V376a Preamp. Import duties might apply. For EU countries Import duties are less than £100.
    £1,799.00
    From Switzerland
    £51.00 postage
    or Best Offer
  • Audient ASP880 8 Channel Mic Preamp and Converter - Please Read Description

    Great condition ADAT preamp which sounds great, very clean and well equipped with useful features. Phantom power does sometimes take a little while to power up / discharge but it cleans up pretty quickly. Also on the odd occasion channel 7 gives out some white noise when using 48v. This goes away when you plug in your mic again. This is a very specific issue and you may not even encounter this at all but I need to make it known when listing. I always try to be transparent as I can with my items. It will ship in the original box with power cable and a short ADAT cable. Priced lower than previously sold units due to the small issues I mentioned.
    £590.00
    Type: Microphone Preamp
    £60.36 postage
    Features: Solid State
    27 watching
    Customs services and international tracking provided
  • Trident MTA 16 Channel Pre Amp and PSU

    I’m selling this Trident iX one 16 channel pre amp. Designed by Malcolm Toft. The iX one is a simple workhorse 16 channel mic pre amp offering gain control from 20 to 65dB on the mic input and 0 to 40dB on the line input. Also has 20dB pad, phase reverse, phantom power on every channel. These pres are the same as the ones found in the Trident MTA 980 desk which was used by producer Nigel Godrich to track Radiohead’s OK Computer album. I’ve had 3 of these and used them mainly for live recording on location work. This is the 2nd one up for sale. I’m keeping the 3rd. There are a few rack scratches as shown in the photos. Also 2 of the LEDs on the PSU don’t light but this doesn’t effect operation, everything else works and operates as it should.
    £750.00
    0 bids
    £68.93 postage
    Ending Friday at 12:43PM BST2d 17h
    or Best Offer
    Type: Microphone PreampFeatures: Phantom PowerCustoms services and international tracking provided
  • Safe Sound Audio P1 - Rare British Pre-Amp/Compressor/Expander Classic

    I believe its a very similar circuit inside this.
    £500.00
    Type: Microphone Preamp
    £50.00 postage
    Features: Phase Reverse
    or Best Offer
  • New listingAUDIX MX T200 microphone preamps x6, mixer, vintage 70's, rare, British sound

    The Master out has a sweet sounding bass and treble equaliser. The unit also works as a great 7 into mono output/ summing mixer. The MX 200 has been gone through by a renown London electronic audio engineer to make sure it performs as it should.
    £895.00
    0 bids
    £35.00 postage
    Ending 23 Oct at 12:08PM BST6d 17hType: Microphone PreampFeatures: Rack-Mountable
  • Behringer MIC2200 Ultragain Pro Vacuum Tube Microphone / Line Preamplifier

    The MIC2200 is the ideal extension to your console, MIDI setup or hard disk recording system. In addition, the ULTRAGAIN PRO features direct injection and level conversion functionality. Built-in high-quality vacuum tube for outstanding, ultra-musical tube sound.
    £100.00
    Brand: Behringer
    £19.59 postage
    Type: Microphone Preamp
    16 watching
    Features: Vacuum TubeCustoms services and international tracking provided
  • UNIVERSAL AUDIO 6176 LIMITER/COMPRESSOR *EXCELLENT CONDITION* *UPGRADED TUBE*

    ORIGINAL TUBE INCLUDED . EXCELLENT CONDITION .
    £616.39
    2 bids
    £49.46 postage
    Ending 24 Oct at 10:30PM BST8d 3hFrom United StatesBrand: Universal AudioType: Channel StripFeatures: Phantom Power
  • ART Tube Channel preamp EQ equalizer compressor Valve Parametric rack studio

    We are Lucky enough to be able to offer some of the last US made ART products (new-old stock). These are mains (230-240) voltage items, not wall-wart transformer items you see these days. Excellent quality valve/tube audio equipment made in New York State. The ART Tube Channel is a versatile valve preamplifier with parametric EQ and Valve compression. From subtle clarity to gorgeous valve warmth to preamp drive only achievable with classic tube technology, this preamp is a great addition to anyone’s studio setup. Robust enough to use as part of a live/Touring setup but traditionally designed for studio use. Comes in original packaging.
    £285.00
    Brand: Art
    £32.70 postage
    Customs services and international tracking provided
    or Best Offer
    13 watching
  • Vintage[ish] Joemeek MQ1 preamp / compressor / EQ

    (Item as described. aux in [1/4" x2]. "Good mic, as described. main out [1/4" x2]. "I love this microphone". what people say:).
    £85.00
    Brand: Joemeek
    £22.49 postage
    Customs services and international tracking provided
    or Best Offer
    17 watching
  • Harrison MR-4 Vintage Recording Channel (Preamp + Equalizer)

    More pictures comming soon.
    £1,899.00
    From Switzerland
    £51.00 postage
    or Best Offer
  • Behringer ADA8200 Ultragain Pro Digital

    The Ultragain ADA8200 is the professional's edge. Signal conversion in the ADA8200 takes place at either 44.1 or 48 kHz with 24-bit resolution. The ADAT inputs and outputs can be operated independently, as long as there is an identical wordclock signal.
    £199.00
    Brand: Behringer
    £23.85 postage
    Type: Microphone PreampFeatures: Rack-MountableCustoms services and international tracking provided
  • Behringer MIC2200 Ultragain Pro 2-Channel Tube Mic Preamp Microphone Pre-Amp

    The MIC2200 is the ideal extension to your console, MIDI setup or hard disk recording system. In addition, the ULTRAGAIN PRO features direct injection and level conversion functionality. Built-in high-quality vacuum tube for outstanding, ultra-musical tube sound.
    £129.99
    Brand: Behringer
    £20.00 postage
    Type: Microphone Preamp
    23 watching
    Features: Phantom PowerCustoms services and international tracking provided
  • DBX 376 preamp

    Soon, with corrected price.
    £999.00
    From Switzerland
    £51.00 postage
    Brand: dbx
    or Best Offer
  • Golden Age Project PRE-73 Mk III Classic Microphone Preamp Pre Amplifier

    The signal path uses only discrete components like resistors, capacitors and transistors. The circuit used in the PRE-73 MKIII is similar to the preamp section in the classical 1073 module with a corresponding sound character that is warm, punchy, sweet and musical.
    £280.00
    Top Rated Plus
    £24.94 postage
    Brand: Golden Age Project
    34 sold
    Type: Microphone PreampCustoms services and international tracking provided
  • A Designs Reddi Tube Direct Box preamp

    Brand New , never used
    £670.00
    Customs services and international tracking provided
    £52.86 postage
    or Best Offer
    26 watching
  • PreSonus DigiMax DP88 USB Audio Interface and Studio Control Command Center

    £453.54
    Est. delivery dateEst. delivery Fri, Oct 19
    FAST & FREE
    From United StatesBrand: PreSonusType: Microphone PreampFeatures: Phantom Power
  • Audient ASP008 8 Channel ADAT Preamp and Converter

    Two optional digital interface cards are available for the ASP008, either one can be factory retrofitted to all units. For <48kHz operation, a single optical cable is connected to either optical ADAT port (provides 8 channels @ 48kHz).
    £563.12
    From United States
    £21.68 postage
    Brand: Audient
    or Best Offer
  • Grace Design ALiX (Black) Ex-Demo

    Power is supplied by a universal 100-240VAC input module. 12V phantom is available in the line input for electret / lavalier mics, and we've even included a 9VDC 500mA BOSS style pedal power output jack, so you can power your tuner and effects right from your ALiX.
    £599.00
    Brand: Grace Design
    £40.00 postage
  • New listingVintage Valve Mic Pre - Preamp - 1960s - Tube - V72 - V76 - Analogue Addicts

    Just as good! Built to a very high standa rd by the techs here at Analogu e Addicts UK - Over 30 years experience designing and building high end electronic and audio units. Sale is for 1 x preamp - Photo shows 2.
    £549.99
    Brand: Valve
    £69.99 postage
    or Best Offer
    2 watching
  • ART Dual Levelar Tube VLA Valve rack studio levelling amp amplifier American NOS

    We are Lucky enough to be able to offer some of the last US made ART products (new-old stock). These are mains (230-240) voltage items, not wall-wart transformer items you see these days. Excellent quality valve/tube audio equipment made in New York State. The ART Dual Levelar is a Valve Levelling Amplifier and compressor. A very dynamic unit capable of delivery valve punch and warmth in dual mono and stereo modes. Robust enough to use as part of a live/Touring setup but traditionally designed for studio use. Comes in original packaging.
    £195.00
    Brand: Art
    £31.50 postage
    Customs services and international tracking provided
    or Best Offer
  • PROEL 4 channel 48v and 12v Phantom power supply

    The good news is that it can also output 12v for T-power mics. That's nice clean power that won't interfere with your audio signals. A piece of good quality kit that has been well looked after.
    £105.00
    0 bids
    £45.29 postage
    Ending Sunday at 10:08PM BST5d 3h
    or Best Offer
    Brand: ProelFeatures: Phantom PowerCustoms services and international tracking provided
  • ART Tube MP Studio V3 Tube Mic Pre-amp

    V3™ - Variable Valve Voicing. The Tube MP Studio V3Gäó single channel mic pre features ART's new V3Gäó (Variable Valve Voicing) Technology -- found only in ART microphone preamplification systems. Single channel mic pre.
    £85.99
    Brand: Art
    £28.34 postage
    Customs services and international tracking provided
    or Best Offer
  • Dynavector Phono Pre Amp P 75 Mk2

    Phono pre-amplifier and phono enhancer. P75 phono enhancer. The P-75 mkII is a stand-alone phono to line level amplifier. Phono Enhancer - - Zero ohms. High output MC. High resistance coil --- approx 25 - 50 ohms.
    £375.00
    Type: Phono Preamp
    £32.73 postage
    Customs services and international tracking provided
    or Best Offer
  • Alice Mic Amp Pak 1 Gold High Quality Broadcast Microphone Pre Amplifier

    A well known High Quality Mic Pre Amp made in UK by Alice. This is the Gold Anodized version. Itis in good condition with a few minor marks on the case.
    £80.00
    Type: Microphone Preamp
    £23.32 postage
    Customs services and international tracking provided
    or Best Offer
  • Audient ASP880 8 Channel Mic Preamp and Converter (NEW)

    Ever wanted to add compression or EQ to your signal before going to the computer?. Well with ASP880 you can. Simply insert any analogue processor before the converters - it's as easy as that. Lose those unwanted low frequencies with a simple to use variable high-pass filter.
    £799.00
    Type: Microphone Preamp
    £38.16 postage
    Features: Solid State
    or Best Offer
    Customs services and international tracking provided
    Only 1 left.
  • Avalon VT-737 SP VT737SP Tube Channel Strip Mic Preamp Serial No: 20348

    The top rack ear is slightly bent, still fits in any rack just fine. Used only in a smoke free studio. See the pictures for more details. Class A preamp design with three input selections. Avalon VT-737sp Channel Strip at a Glance.
    £1,291.38
    Est. delivery dateEst. delivery Fri, Oct 19
    FAST & FREE
    From United States
    18 watching
    Type: Channel Strip
  • RFZ V781 Vintage preamp

    Two units available. Import duties might apply. For EU countries Import duties are less than £100.
    £1,999.00
    From Switzerland
    £51.00 postage
    or Best Offer
  • Golden Age Project Pre-73 DLX Classic Microphone Preamp

    The circuit used in the PRE-73 DLX is similar to the preamp section in the classical 1073 module with a corresponding sound character that is warm, punchy, sweet and musical. These classic characteristics have been heard on countless recordings through the years and it is a versatile sound that works very well on most sound sources and in most genres.
    £345.00
    Top Rated Plus
    £24.34 postage
    Brand: Golden Age Project
    18 sold
    Type: Microphone PreampCustoms services and international tracking provided
  • FMR Audio RNP8380 Really Nice Preamp

    It's the last 10 to 15dB that really uncovers the flaws in amplifier design. The RNP was designed with sonic neutrality in mind without sounding clinical or sterile. There's very little coloration with no unexpected frequency response peaks and valleys, across the very wide frequency response (125kHz) at every gain setting.
    £499.00
    Top Rated Plus
    £35.57 postage
    Type: Microphone PreampCustoms services and international tracking provided

Pro Audio Preamps

The term ‘pro audio preamp’ is short for professional audio preamplifiers. A preamplifier is a device that prepares a signal for further amplification. The purpose of a preamp is to amplify low-level signals to line level, which is the standard operating level of your recording equipment.

Preamplifiers are placed close to the sensor, to reduce the effects of noise and interference to improve the quality of sound that is emitted from the amplifier. They can be sold as an individual device or can be built into audio devices. Preamps are commonly used to amplify signals from microphones, instruments and phonographs.

The important reasons for purchasing a preamp is to have clear and improved sound quality as well as allowing you to obtain more sound.

Benefits of an external pro audio preamp

There are many benefits of purchasing an external preamp, including:

  • Improved sound quality
  • It will pick up more sound that is often missed and give you more gain
  • A preamp picks up lower noise
  • It can help you to give the sound a different character

Features of a preamp

One of the first considerations when choosing a preamp is to decide on the number of channels you require. 

Preamps commonly have between one and eight channels. Depending on how many devices and units that you want to connect to the preamp will determine how many channels you will require.

As well as channels, preamps often boast many other features such as:

  • Phantom power – This allows condenser microphones to be powered from the microphone input without another cable
  • Phase reverse – It helps to balance the sound when recording an instrumentusing two microphones
  • Gain control – This helps to bring signals to full operating level

There are many different types of preamps available, which can include a variety of different features. 

Other features of preamps that you may want to consider are high impedance input, limiter, modular and vacuum tube valve. It depends on what you want your preamp to achieve as to which features you choose.

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