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Mark Bass Little Marcus 58R Bass Guitar Amplifier 500w Amp Head

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Product Information

The new LITTLE MARCUS 58R is ready to replicate the worldwide success of our Marcus Miller signature heads, we introduced few years ago. It is the result of the meeting between Marcus Miller — renowned for his groundbreaking style and trademark sound— and Marco De Virgiliis, considered an innovator, being the first pioneer introducing lightweight, portable, powerful and great sounding bass heads and cabinets. As for the previous version, it has an amazing warm and natural sound, clear definition, punch and dynamic, respecting the priority of tone like all the Little Mark heads, plus a new tone setting with 5-band EQ on EQ1, from ULTRALOW to HIGH and the two new Old School and Millerizer filters featured on EQ2 taylored together with Marcus, allowing to quick obtain a vintage tone or an amazing slap sound. The new bi-band limiter featured on this amp responds faster and more dynamically to your playing. It's paired with a 500W power amp, providing impeccable bass frequency reproduction thanks to our MPT proprietary amp specifically designed for bass. The new LITTLE MARCUS 58R amp new design features all the connections and controls on the front panel leaving on the rear panel only the speaker outs and AC power socket, offering optimal ergonomics and making everything more practical.



The LITTLE MARCUS 58R has simple, intuitive and effective controls as on the previous Little Marcus head series, with best tone choices thanks to the five bands on EQ1, from ULTRALOW to HIGH. An improved versatility is provided by a new tone setting tuned to offer a more defined, rich and dynamic sound that easily cuts in the mix. The new Old School and Millerizer filters setting was developed together with Marcus to allow a wide range of tone, from vintage to Marcus unique slap voice. EQ1 and EQ2 can be turned ON/OFF via optional footswitch.


Our new bi-band limiter responds faster and more dynamically to your playing than traditional limiters do and lets your high end "breathe" for a more natural sound. It makes our amp heads the best choice for anyone who enjoys a quick, punchy attack at high volumes.


State of the art and technology with an amazing power to weight ratio. The LITTLE MARCUS 58R amp boasts 500W of power and only weights  2,17Kg/4.78lbs


This new amp features all the connections and controls on the front panel including a convenient mute switch, along with the Line Out level control knob that allows for precise control of the signal sent to the mixer/ PA with Pre-Post EQ switch to set the XLR output's routing to before or after your EQ as  required, leaving on the rear panel only the speaker outs and AC power socket, making everything more practical and with a winning aesthetic.



  • Solid State


  • POWER: 500W @ 4ohm / 300W @ 8ohm






  • XLR Line Out with Level Control and Pre/Post EQ and GND Lift switches
  • FX Send/Return
  • Footswitch (optional) to turn on/off EQ1 and EQ2


  • 10.87” / 27.6 cm (width)
  • 3.27” / 8.3 cm (height)
  • 10.08” / 25.6 cm (depth)


  • 4.78 lbs / 2.17 kg


1 Year Warranty

Shipping & Delivery

All orders over $100 will be automatically eligible for FREE Shipping Australia Wide, if you order is under $100 there will be a flat rate of $10.

Belfield Music is well known for its top online customer service. We treat all online customers with the same excellent service we give to our in store customer. We will ensure that you receive all the support you need while your goods are in transit and ensure the goods arrive promptly. All of our shipments have tracking numbers available and we cover every single unit by our own shipping insurance.     

Online orders are normally processed within 1-3 business days. Once processed, your order should take between 1-8 business days to arrive depending on your location. Please note that your order may take up to 10 business days to arrive from the day you place your order. 

If it transpires that the product is out of stock due to a stock discrepancy and/or there will be a delay in shipment, we will contact you within 2 business days of placing your order and give you the option of waiting or cancelling your order. The products we advertise online should show if they are in stock or not. We do our best to keep the website stock count up to date, but there may be an occasional error.

If you wish to utilize an Express Delivery Service to receive your item, please contact us for a shipping quote before you place your order at admin@belfieldmusic.com.au or by using the Chat icon on the bottom right of the page.           

Deliver is made during the hours from 8:00am till 5:30pm Monday to Friday. As such, please ensure you nominate an address which is capable of receiving goods during 8am and 5.30pm.  Given the restrictions on PO Box deliveries we cannot deliver larger sized items to a PO Box.

If for any reason our selected carriers don't service your area we will contact you before processing your order if this applys to you.

Returns Policy

If you wish to return an item which is not damaged or faulty in any way and you have simply changed your mind or made the wrong decision, you must let us know within 7 days of receiving the item.  We will not agree to refund an item because you simply changed your mind or made the wrong decision if we have not been advised of your intention within 7 days of receiving your item. Once we have provided a return authority, it is the buyer’s responsibility to return the item, at their own costs within 30 days from original purchase. If the item is returned with any damage or alteration to its original packaging, we will refund the item subject to applying a minimum 15% restocking fee.  We will not refund the costs of the initial shipping charges.

It is in Belfield Music best interests to keep our customers happy with their purchases. If you are not happy with your purchase, please talk to us first. We will always attempt to resolve any problems you may have as best we can. To contact us please email us at admin@belfieldmusic.com.au or by using the Chat icon on the bottom right of the page.