• Home
  • Milkman The Amp Stereo Guitar Amp Pedal

Milkman The Amp Stereo Guitar Amp Pedal

A fully-stereo pedalboard amplifier with cab sim sweetener, a stereo headphone jack & two powerful channels!



FREE UK Delivery

Free & Next Day delivery to most UK locations when spending over £149

Earn 899 Loyalty Points

You’ll get £8.99 to spend on your next order.

Click and Collect

Available to collect by request.
Looking to try or buy at our Guildford store?
How does click and collect work at Andertons?


Milkman Custom Options

Milkman Amps are available with several custom options including colour, speaker & sometimes power scaling. If you can’t find the model or spec that you were looking for, please contact us and we’ll get you the info that you need!

Please note: Some images on our Milkman listings may show the wrong type of speaker or colour option. Refer to the specifications for the correct information.

Product Description

Milkman Sound has expanded its popular line of pedalboard amplifiers with the mighty The Amp Stereo. This newly-designed, fully stereo amplifier design boasts many extra features that will surely make this an essential part of any musician's toolkit — particularly players who want a compact and portable rig right at their feet with multiple options.

With The Amp Stereo, there's now an elegant, analogue, and easy to use end-of-the-chain solution for guitarists using stereo effects (like delays, reverbs and modulations FX) — featuring Milkman's cab sim sweetener, a stereo headphone amplifier, and two powerful channels of amplification! On top of the stereo functionality, The Amp Stereo can be run as two independent amplifiers each powering separate channels of audio. Just use the built-in footswitches to sum to mono and fix phase issues potentially created by wet/dry guitar setups or cabinets with reverse polarity.

The two outputs can also run into separate cabinets varying in impedance and wattage. For example, a 4 ohm bass cabinet can be powered by one side, and an 8 ohm guitar cabinet by the other. Ultimately, Milkman's The Amp Stereo has been designed to maximise headroom and serve as a foundation for all manner of instruments and effects. And like all Milkman products, The Amp Stereo is built by hand in California with the finest components available.



  • Volume: This knob controls the input gain for the right channel of The Amp Stereo.
  • Treble: High Frequency EQ adjustment.
  • Bass: Low Frequency EQ adjustment.


  • Volume: This knob controls the input gain for the left channel of The Amp Stereo.
  • Treble: High Frequency EQ adjustment.
  • Bass: Low Frequency EQ adjustment.

Output: The single large knob controls how much of the signal from both preamps goes to the output. Think of this less like a master volume, and more like the master fader on a mixing console. This is the only level control for the various outputs.


  • Sum: When this switch is depressed and the LED is lit, the two preamps will be summed together. If you are using a stereo input, then it will create a mono summed signal that comes out of both channels. If you are using only one input, it will sum to both channels.
  • Ø: When the phase switch is depressed and the LED is lit, the output of the right side will invert. This can be useful for aligning phase if something in your signal chain flips phase, or if both speaker cabinets are not wired the same.

youtube video thumbnail

Rear Panel Features

The rear panel has all of the inputs and outputs for The Amp Stereo, with the exception of the headphone amplifier which is on the front:

  • Input: Plug your guitar or instruments in here. The input impedance of The Amp Stereo is 1 Mohm, so it will have enough headroom for all guitars and line instruments.
  • Sim Off: Use this switch to toggle the cab sim EQ on and off. The cab Sim is an analogue EQ-based sweetener on 2 outputs: the balanced TRS output, and headphones.
  • Balanced Out: This is a line level balanced output on dual TRS connectors. Connecting to a balanced 1/4" TRS input is preferred for lowest noise, but if your interface mixer or amplifier only has unbalanced TS 1/4" inputs, The Amp Stereo's balanced out can feed that input with a 6 db loss in level and minimal degradation in fidelity as long as the TS cable length is kept to a minimum.
  • GND Lift: There may be a situation where you are using more than one output at once and creating a ground loop between various pieces of equipment. The Balanced Out has a ground lift switch to isolate ground at the TRS balanced output. If you hear excessive hum when using the line outputs, try lifting ground to reduce noise.
  • Speaker: You can power a 4, 8, or 16 ohm speaker load from each output. At 4 ohms, The Amp Stereo will put out 200 watts per output. At 8 ohms, each output is rated at 100 watts, and at 16 ohms, each output is rated at 50 watts. It is 100% safe to operate The Amp Stereo with no speaker load attached.
  • Power Switch: The Amp Stereo will power on when the power switch is rocked into the on position.
  • Power Input: The Amp Stereo can support any power input between 100 VAC and 240 VAC. This makes it ideal for international travel. There is no switch to change input voltage — The Amp automatically detects the input voltage and adjusts its internal voltages accordingly.
Elliot Stent author picture

Written by Elliot Stent

Finance Options

Select deposit amount

0% = £0.00

Total amount payable £0.00. APR representative. Finance is subject to status. Terms and conditions apply.

Total Cash Price
Amount of Credit
Duration of Agreement
0 Months
0 Monthly Repayments
Cost of Credit
APR Representative
Annual Rate of Interest (Fixed)
Settlement Fee
Total Amount Payable


How do I use instant finance?

It's simple! Just add the products you want to your basket and click the "Checkout" button in your basket. Go through the checkout process and tick the "Finance" option under "Select Your Payment Method". You can then choose which finance term you'd like to apply for, and change your deposit if you wish.

At the end of the checkout you'll be taken to the V12 Finance web site. This is where your finance application is processed. Assuming your application is accepted you'll be able to place your deposit and confirm your order right there.

Then, your order will come through to Andertons and we'll send you the goods. Get approval before 3pm and we'll send your order out the same working day (stock permitting) for next working day delivery!

Who can apply for finance?

You must: spend over £300, be at least 18 years of age, have been a UK resident for 3 years or more, be able to make repayments by Direct Debit, be in regular employment (minimum of 16 hours per week) including self-employment, or in permanent residence with your partner who is in regular employment.

Read More About Online Finance

Andertons Music Company's Registered Office: 58-59 Woodbridge Road, Guildford, GU1 4RF. Andertons Music Company acts as a credit broker and not a lender and only offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance. Not all products offered by Secure Trust Bank PLC are regulated by the Financial Conduct Authority. Andertons Music Company is authorised and regulated by the Financial Conduct Authority, firm registration number 716155. Credit provided subject to age and status.