• YAMAHA P3500 POWER AMPLIFIER only one on the sale but I have 3 for sale

    THE AMPLIFIER IS IN GOOD WORKING CONDITION All 3.
    £160.00
    Type: Power Amplifier
    £20.00 postage
    Brand: Yamaha
    or Best Offer
    10 watching
  • Crown XLS1500 2 Channel Power Amplifier

    Crown XLS1500 2 Channel Power Amplifier with bult in crossover. <br> <br>2-channel power amplifier with built-in crossover (1ch low pass/1ch high pass or both low pass or both high pass selectable xover frequency) <br> <br>power output: <br> <br>300 watts RMS per channel at 8 ohms <br> <br>525 watts RMS per channel at 4 ohms <br> <br>775 watts RMS per channel at 2 ohms <br> <br>1050 watts RMS (mono) at 8 ohms in bridged mode <br> <br>1550 watts RMS (mono) at 4 ohms in bridged mode <br> <br>frequency response: 20-20,000 Hz (-1 dB) <br> <br>signal-to-noise ratio: 103 dB <br> <br>total harmonic distortion: 0.5% (20-20,000 Hz) <br> <br>Excellent condition - home use only - couple of scratches underneath , no marks elsewhere.
    £200.00
    Click & Collect
    Free postage
    Type: Power Amplifier
    or Best Offer
    Brand: Crown
  • New listingMC2 E450 Power Amplifier (MC squared) 

    MC2 (MC squared) E450 Power Amplifier. Solid quality amplifier in full working order. Priced to sell due to semi-retirement.  Full manual available to view online .  Condition is Used.
    £300.00
    Click & Collect
    £20.00 postage
    Type: Power Amplifier
    or Best Offer
    Brand: Mc2
  • New listingBose S1 Pro

    The lightweight yet durable cabinet provides versatile positioning that optimises the sound coverage to suit a range of applications. Condition is Used.
    £290.00
    3 bids
    £15.00 postage
    Ending 29 Aug at 1:55PM BST6d 8hBrand: Bose
  • New listingPorter And Davies Gigster Engine

    <p>Porter And Davies Gigster Engine. Condition is Used.</p><p>I picked this up as a spare, but I’ve never needed it, as they’re so reliable! Perfect working order. Just the Engine / amp as pictured. Will be sent by Hermes.</p>
    £199.00
    Click & Collect
    £10.00 postage
    or Best Offer
  • Laney Audio Hub AH80 Multi Input 3 Channel Amp

    Laney Audio Hub AH80 - Drum Monitor and Multi Purpose Amp. Condition is Used but it’s in excellent condition. Lead and instructions included. Here's what Laney say about the AH80 The onboard digital effects have been custom designed by Laney.
    £75.00
    0 bidsEnding Today at 9:46AM BST4h 6mCollection in person
  • New listingALESIS RA-150 STUDIO REFERENCE POWER AMP. 150 WATTS.

    Very powerful power amp by Alesis designed for the studio. Produces 75 watts per channel. Rack mountable 19". Rack ears are bronze finish.
    £89.00
    Click & Collect
    £10.00 postage
    Brand: Alesis
  • hh amplifier Vh Musician 212 Combo

    <p>Here s a great hh vs musician really cuts through any mix clean and dirty tone is great two all works as it should no issues has the obligatory small crack in the plastic front panel and a small rear in the grill about an inch and a half long at the very bottom left of the grill but this could be fixed as it has wood behind it I tried to photo it also comes with the original cover the cover needs a piece of tape putting on one corner but it works fine all in all a great classic British amp only selling as I have the identical head version clean example of a vh musician these amps have the best spring reverb if you like that big lush reverb sound to thanks for looking</p>
    £150.00
    Click & Collect
    £50.00 postage
    Brand: HH
    12 watching
  • Roland KC 150 65 Watt Amp 4 Channel Amp

    Used Condition & Fully Working, this amp is built like a tank.
    £100.00
    Collection in person
    or Best Offer
    Type: Instrument AmplifierBrand: Roland
  • Marshall celestion g12h Vintage Speakers Carlsbro Cab

    <p>celestion g12h Vintage Speakers. Approx 1 year old and had little use. Will be shipped securely in a carlsbro cab in used condition. </p><p>British mainland only unless contact me beforehand. </p><p>Collection in person welcome</p>
    £50.00
    0 bids
    £25.00 postage
    Ending Today at 2:35PM BST8h 55mClick & CollectBrand: Celestion
  • Fender Deluxe 112 Plus Guitar Amp - In Good Working Order

    Pretty tidy just small bit of covering missing from front of amp / side panel. Fender Deluxe 112 Plus Guitar Amp. In Good Working Order / Sounds Great.
    £125.00
    Collection in personBrand: FenderInstrument: Guitar
  • JMI Domino Ultra Rare Valve Amp head. Working, with Mullard yellow label valves.

    JMI Domino Ultra Rare Valve Amp head. Working, with all five of the valves being Mullard yellow label. Single EL84 with EZ80 valve rectifier, 2 X ECC83's and EF86, amp sounds great when cranked. Rare spring piezo reverb.
    £350.00
    Click & Collect
    £15.00 postage
    10 watching
  • D&B Audio E-PAC with E3 Speakers

    <p>D&B Audio E-PAC with E3 Speakers. Condition is Used.</p><br><p>No speaker leads I’m keeping them </p><p>power lead included </p><br><p>Good overall condition </p><p>Few scratches here and there</p><br><p>£1 start</p>
    £460.00
    29 bids
    £15.00 postage
    Ending Today at 10:26AM BST4h 46mClick & Collect
  • QSC POWERLIGHT 2 PL230 3000 watt PROFESSIONAL AMPLIFIER

    I HAVE FOR SALE A QSC POWERLIGHT 2 PL230 3000 watt PROFESSIONAL AMPLIFIER. With PowerLight® technology, PowerLight 2 amplifiers take your sound to a whole new level. Not only does it give you tighter bass and clean transparent highs, PowerLight also cuts waste heat, boosts reliability and gets rid of unwanted noise and hum.
    £450.00
    Click & Collect
    £20.00 postage
    Type: Power Amplifier
    or Best Offer
    Brand: QSC
    13 watching
  • Vonyx VXA-2000 MKII PA DJ Power Amplifier 2-Channel Rack Mount Audio Amp 2000W

    Power Supplies. Output power: 8 Ohms: 2x 750W. Output power: 4 Ohms: 2x 1000W. Air Conditioners. Need more information?. What if I have not received my order?. When will I receive confirmation of my order?.
    £135.00
    Top Rated Plus
    Was: Previous price£179.99
    Click & Collect
    FAST & FREE
    Type: Power Amplifier
    19 watching
  • SoundLab G097 Studio Amp. 2x90 Watts RMS

    <p>SoundLab G097 Audio power amp , used for discos etc , a few scuffs and scrapes , but works perfectly , only selling due to lack of use !!! </p><p> Great workhorse , tough build , nice clean sound .</p>
    £40.00
    Click & Collect
    £12.00 postage
    Type: Power AmplifierBrand: Sound Lab
  • Vintage 1970's HH Electronic V-S Musician Head Amplifier

    Power lead included. we have power tested this unit as you can see in the pictures.
    £130.00
    Click & Collect
    Free postage
    Brand: HH
  • Roland AC33 Portable Acoustic Guitar / Vocal Amplifier - power supply not incl.

    Fantastic battery-powered amp. Runs off 8 x AA batteries. <br> <br>I used this for several years as a busking and portable gigging amp. It's light, powerful (for its weight), and most importantly is 100% reliable. <br> <br>The amp works perfectly. The only issue is that the mains power supply stopped working, which appears to be quite common. I never replaced it because I only ever used it with batteries. Generic replacement PSUs can be had for under £15. <br> <br>The amp has a few blemishes, as you'd expect from being used for busking - please see photos of wear to the tolex. <br> <br>***NB I'm away from 10th to 17th August, and will be unable to post or offer collection during that time.***
    £178.00
    Click & Collect
    £14.75 postage
    Type: Power Amplifier
    or Best Offer
    Brand: RolandInstrument: Guitar
  • Cloud - CXV-425 - 4x 250W 100V Line Amplifier

    Cloud - CXV-425 - 4x 250W 100V Line Amplifier. Condition is Used. <br> <br>In excellent condition and works perfect. Very clean and dust free. Kept in audio rack through its use.
    £80.00
    0 bids
    £10.00 postage
    Ending 26 Aug at 10:11PM BST3d 16hClick & CollectType: Power Amplifier
  • Yamaha P5000S Power amplifier

    <p>Yamaha P5000S Power amplifier. Comes with carry case. Condition is Used. Re listed multiple times due to time wasters. Serious buyers only. Dispatched with Royal Mail signed for. It is in full working order. Message on eBay for more questions you may have. Open to offers. Thanks</p>
    £259.00
    Click & Collect
    £25.00 postage
    Type: Power Amplifier
    or Best Offer
    Brand: Yamaha
    18 watching
  • Fender 212R Frontman Amp

    Used, Very Good Condition
    £49.00
    0 bidsEnding Today at 11:55AM BST6h 15mCollection in personBrand: Fender
  • Samson MXS 2800 1U Stereo Power Amplifier

    Samson MXS 2800 1U Stereo Power Amplifier . Condition is Used and is in excellent working condition: <br>Used about a dozen times or so, very clean and powerful amp for its size and punches well above its weight: <br> <br>1U so takes up very little space: <br> <br>Cost around £379.00 - £400.00 brand new: <br> <br>No longer required as I have new system: <br> <br>Power lead included in sale <br> <br>2 x 850W @ 4ohms: <br>2 x 450W @ 8ohms: <br> <br>Weight: 4 5kg: <br> <br>Any Questions please Ask: <br> <br>Thanks for Looking. . . . . . <br>
    £200.00
    Click & Collect
    £13.99 postage
    Type: Power Amplifier
  • Crown K1 Amplifier, used condition

    Crown K1 Amplifier. Superb amplifiers. No fans, very quiet. Huge amount of power and very high damping factor for very tight bass. This amplifier sounds amazing. Low power draw from the mains because of the BCA circuitry.
    £175.00
    Collection in person
    or Best Offer
    Brand: Crown
    10 watching
  • C Audio GB602 Power Amplifier

    PRICE IS FORONE AMPLIFIER ONLY. Lovely at outputting low end with PLENTY of reserve power. 2x 370W @ 8ohms. 2x 600W @ 4ohms. 2x 840W @ 2ohms.
    £100.00
    Type: Power Amplifier
    £20.00 postage
    Features: Limiter
    or Best Offer
    Only 1 left.
  • Cepiar RS-450 Stereo Power Amp - Handbuilt In The UK

    Very reluctantly I have for sale four (4) Cepiar RS-450 Power Amp - Handbuilt In The UK. They are very heavy as you would expect from a hand built top quality amplifier such as these.
    £150.00
    Collection in person
    or Best Offer
    4 watching
  • Marshall JMD:1 - JMD501, 50W, 1 x 12 combo valve amp

    Got a JCM800 after the JMD, and hardly use the JMD. Used Marshall JMD1 50W combo. The amp works fine, and a bargain for the money. You will need a standard guitar lead to connect the footswitch to the amp.
    £199.00
    Brand: Marshall
    £35.00 postage
    or Best Offer
  • Laney Audio Hub AH80 - Multi Purpose Amp (65 Watts)

    The Master section includes a CD input, line out and a headphone socket. The cabinet design allows either angled or forward positionin.
    £120.00
    Collection in person
    or Best Offer
  • Epiphone Valve Special Guitar Valve Amp Combo

    The Epiphone Valve Special response is quick and lively. Epiphone Valve Special Amp. The cool Epiphone Valve Special retro cab holds single-ended Class A circuitry and a 10" speaker. 5 watts of output power.
    £149.00
    Click & Collect
    FAST & FREE
    Type: Instrument AmplifierInstrument: Guitar
  • New listingFender Princeton 112 Plus Guitar Amp (read description)

    Fender Princeton 112 Plus Guitar Amp (65w). I’ve had the amp for about 5/6 years. It’s a brilliant sounding amp, especially for a solid state (the clean tone is wonderful). Never had any problems gigging with it and I’ve never had to set it past 2 or 3!
    £150.00
    0 bids
    £28.55 postage
    Ending 29 Aug at 2:40PM BST6d 9hBrand: FenderInstrument: Guitar
  • VXA-3000 Two Channel Power Amplifier Bridgeable DJ PA Amp 2U 19" Mount 3000W

    Power Supplies. Output power: 4 Ohms: 2x 1500W. Output power: 8 Ohms: 2x 1000W. Air Conditioners. Need more information?. What if I have not received my order?. When will I receive confirmation of my order?.
    £149.00
    Top Rated Plus
    Was: Previous price£199.99
    Click & Collect
    or Best Offer
    Type: Power Amplifier
    FAST & FREE
    73 watching
  • Crown XLS 1502 DriveCore Amplifier

    <p>Crown XLS 1502 DriveCore Amplifier.Used only in a home theatre setup.Excellent condition.</p>
    £210.00
    Click & Collect
    £14.75 postage
    Type: Power Amplifier
    or Best Offer
    Brand: CrownFeatures: Crossover
  • PEAVEY KB300KEYBOARD COMBO

    Condition is Used. NO FAULTS IN GOOD CONDITION. SWITCH FITTED FOR TURNING OFF HORNS WHEN USED FOR BASS.
    £65.00
    0 bids
    or Best Offer
    Ending Today at 3:19PM BST9h 39mCollection in personBrand: PeaveyInstrument: Keyboard
  • Yamaha P 3500S Power Amp. Used. Unboxed. Great Condition

    Yamaha P 3500S Power Amp. Used. Unboxed. Great Condition. 390W x2 into 8 ohms, 590W into 4 ohms. Operates in stereo or bridged mono mode.  Great for live work, clubs, band etc. Heavy, (15kgs) so collect in person preferred, otherwise around 30 quid postage.
    £48.00
    0 bids
    £28.55 postage
    Ending 28 Aug at 9:42PM BST5d 16h
    or Best Offer
    Click & CollectType: Power AmplifierBrand: Yamaha
  • QSC PLX 3002 AMPLIFIER

    QSC PLX 3002 POWER AMPLIFIER. 4 ohms 3000 watts. 8 ohms 2000 watts. 16 ohms 1100 watts.
    £425.00
    Click & Collect
    £9.99 postage
    Brand: QSC
  • Yamaha VA 10 Amplifier

    £30.00
    Click & Collect
    £6.95 postage
    Brand: Yamaha
  • Quality Peavey KB / A15 keyboard Amp

    Great quality Amp that is in good condition, plenty of life left. Recently bought a digital piano for our son so this is no longer needed. Bright switch - Channel 1. Headphone out. High-frequency EQ.
    £49.99
    0 bidsEnding Today at 9:02PM BST15h 22mCollection in personBrand: PeaveyInstrument: Keyboard
  • QSC CX12T PROFESSIONAL STEREO POWER AMPLIFIER 1200 watts + 70v / 100v line

    PROFESSIONAL STEREO POWER AMPLIFIER. manual available from here .
    £25.00
    1 bid
    £24.00 postage
    Ending Sunday at 12:18PM BST2d 6hClick & CollectType: Power AmplifierBrand: QSC
  • New listingQSC PLX 1602 Power Amplifier

    This listing is for one QSC PLX 1602 Power Amplifier. It is used but fully working condition. It has a bit of rack rash, see photos. The power lead terminates to an IEC plug. <br> <br>Thanks
    £250.00
    Click & Collect
    £20.25 postage
    Type: Power AmplifierBrand: QSC
  • Powersoft M30d 2 Channel Amplifier

    Powersoft M30D Non DSP. This amp started life as an M14D but has been since upgraded to an M30D. Fully protected circuitry design including DC, infrasonic, high frequency, thermal overload and short circuit.
    £800.00
    Type: Power Amplifier
    £30.00 postage
    or Best Offer
  • Samson Servo-170 Studio Amplifer 85 Watt Stereo

    <p>Samson Servo-170 Studio Amplifer 85 Watt Stereo. Condition is Used. Fully working.</p>
    £49.99
    Click & Collect
    £8.29 postage
    or Best Offer
  • Beyerdynamic Omniphonic Blueprint A150 Studio Amplifier

    £60.00
    Click & Collect
    £12.00 postage
    or Best Offer
  • Fender Champion 40 | 40w 1x12 Combo Guitar Amp

    Guitar Effects. Series: Champion. Computer Music. Channels: Two - (Blackface Clean and Selectable Amp Voice). Master: Treble, Bass, FX Level, FX Select, TAP. We also ask that you take reasonable care of the item/s whilst in your possession.
    £147.00
    Click & Collect
    FAST & FREE
    Brand: Unbranded
    Only 1 left.
    Instrument: Guitar
  • HH Electronic V150-L MOS-FET Professional Power Amplifier, DJ, Sub

    There are built to last and for reliability, this is a nice example of their 150watt single channel MOS-FET amplifier. Ideal for powering a low frequency sub bass speaker and is 19” rack mountable 2u in height.
    £75.00
    Click & Collect
    £15.95 postage
    Type: Power Amplifier
    or Best Offer
    Brand: HH
    11 watching
  • Laney 1x12 8ohm cab guitar amp cabinet speaker Celestion Speaker

    Laney 1x12 8ohm guitar amp cabinet speaker, loaded with a Celestion Speaker. Fantastic condition all round, with grab handle added on side for use with head style guitar amp or as a B can for a combo amp.
    £20.00
    7 bidsEnding Sunday at 5:53PM BST2d 12hCollection in personInstrument: Guitar
  • MTR HPA6 - Six Channel Headphone Amp

    Cheapest new on the net is £352 - £395.
    £150.00
    Click & Collect
    £8.90 postage
    or Best Offer
  • Palmer Loadbox PGA04 (16OHM)

    Special DI box with loadbox for guitars. A jack socket (unbalanced) and balanced XLR connector are available for direct pickup of the signal. The extensive filter section provides for a realistic simulation of classic guitar loudspeaker sounds.
    £140.00
    Click & Collect
    £25.00 postage
    or Best Offer

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Pro Audio Amplifiers

An amplifier receives an audio signal from an instrument, mixeror signal processor and increases it to a power that can be converted into sound via speakers.

Types of Pro Audio amplifier

  • Instrument amplifier - such as a guitar or bass guitar amplifier. 
  • Mixer amplifier - an audio mixer that is ‘powered’ meaning that it contains a built in amplifier
  • Power amplifier - boosts low powered electronic audio signals to a level that they can drive a speaker to create sound

Operating classes of audio amplifiers

  • Class A  -have the lowest levels of distortion and the best sound, but use a lot of energy and generate heat up whilst in use. 
  • Class B - are more power efficient that Class A, but do create some distortion. 
  • Class AB - use two signals to provide efficiency of a Class B and the sound quality of a Class A.
  • Class D - are digital have a very high level of efficiency, generate far less heat than a Class A and can be manufactured to be very small, allowing them to be integrated into active speakers, headphones and more.

Technology types

  • Solid state - use software or transistors, and are often cheaper, lighter options that require the least maintenance. 
  • Tube / vacuum tube / valve - the preference of performers who crave the ‘analogue’ sound consisting of richer tones and a warmer sound, these amps are heavier, more expensive and require maintenance when valves wear out.
  • Hybrid - uses a solid state power amp alongside a valve preamp. It gives the warmer sound whilst keeping the amp cheaper and lighter than a  valve amplifier. 

Matching speakers to amplifiers

If an amplifier does not compliment speakers it is used with, either sound quality will degrade or the speakers may become damaged.

  • Power ratings - an amplifier should deliver twice the amount of power as the power rating on a speaker, per speaker. If an amp is going to be used with two speakers then the power delivery needs to be per channel.
  • Impedance - stated in ohms, the impedance on the amp should match that of the speakers. This is an important value in determining you do not blow your speaker and will depend on your system setup. Research impedance further if you are unsure. 
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