JBL 104 (Pair)

4.5" Studio Reference Monitors

This product has been discontinued.
Current Stock:

Call 0330 380 1135 for alternatives

  • Zero hassle 30 day returns
Key Info
JBL 104 (Pair) are a pair of 4.5" Studio Reference Monitors that features coaxial design & Contoured low-frequency port

Transparent and Powerful Sound

JBL employ cutting-edge technology and components to achieve optimal clarity and transparency. The combination of the 4.5-inch Coaxial LF driver and the .75-inch soft-dome HF driver results in an ultra-wide frequency range, with no colouration. The result is exceptional audio fidelity, capturing the subtle nuances from your source audio, whether it be video or music.

The 104 Reference Monitors have been optimised for desktop placement. Conventional monitors can incur unwanted resonance when placed on desks or wooden surfaces. The unique design combats this ensuring a natural low-frequency performance. It also boasts a smooth-off-axis response so capturing the sweet spot is easier than ever.

Ideal For Music, Gaming and Video Production

Some of the world’s most revered artists and recording studios use JBL loudspeakers and monitors, thanks to their high-end audio performance and reliability. JBL have used the same technology within the One series of monitors. One of the most prominent examples is the new coaxial driver design.

The monitors provide high-levels of performance and playback volume. At the heart of the monitors is a 60-watt Class-D power amplifier, distributing 30 watts per speaker for optimal efficiency. The speaker can be driven up to 104db SPL (peak) without distortion, making it one of the best monitors in its class for sound levels.

The powerful sound and portable size makes them perfect for a range of applications. From music and video production to online gaming. The immersive and powerful sound will put you at the forefront of your audio.

Portable Design, Versatile Connectivity

Created with the modern producer in mind, the JBL 104 Reference Monitors are perfect for musicians on the move. The compact and highly portable design will easily fit within your backpack. This means you can enjoy pristine sound on the move and wherever you go. From producing beats on the train to editing videos with a friend at their house, the 104s are suitable for a wide range of users.

The monitors work as part active/passive, meaning the left monitor is the master monitor powering the right monitor. The master monitor features a convenient front-panel volume control that is easily accessible from your sitting position. It also features three sets of inputs which you can use to connect a variety of devices players to professional audio equipment.


  • Master and extension speaker sold as one set
  • Coaxial 4.5-inch (118 mm) contoured LF driver with integrated.75-inch (19 mm) soft-dome HF driver
  • Contoured low-frequency port
  • Integrated 60-watt Class D power amplifier; 30 watts distributed to each speaker
  • Acoustically optimized for desktop placement
  • Three sets of inputs allow connection with professional equipment, personal music players and consumer-level devices
  • Master monitor includes electronics for the extension monitor, minimizing wiring and clutter
  • Front-panel volume control
  • Front-panel headphone jack with speaker mute feature
  • Integrated power supply

Technical Specifications

  • LF Transducer: 4.5 in (118 mm)
  • HF Transducer: 0.75 in (19 mm), soft dome
  • Crossover: 1725 hz, 1st order
  • Input Sensitivity (-10 dbv input): 87 db / 1 m
  • Power Amp: 60 w (30 w each speaker), class D
  • Maximum Continuous SPL: 89 db
  • Maximum Peak SPL: 102 db
  • Maximum SPL, Momentary Peak: 104 db
  • Maximum peak input level (-10 dbv / +4 dbu): +6 dbv / +20.3 dbu
  • Frequency Range**: 60 hz – 20 khz
  • System Distortion Criteria: < 10 percent THD at maximum output with full compressor / limiter engagement
  • Electrical Distortion Criteria: < 0.2 percent THD @ 1 khz, 2.83 vrms output; < 1 percent thd @ 1 khz, full rated output
  • Signal to Noise Ratio: 75 dba (a-weighted), 70 dbr (unweighted), Relative to 2.83 vrms output on hf
  • Coverage (horizontal x vertical): 120 degrees x 80 degrees
  • Input Connectors:
  • 2 x 1/4-inch (6.5 mm) balanced (+4 dbu);
  • 2 x RCA (-10 dbv);
  • 1 x 1/8-inch (3.5 mm) unbalanced (-10 dbv)
  • Output Connectors: 1 x 3.5 mm (1/8") stereo headphone with auto speaker mute
  • AC Input Voltage: 100 – 240 vac (± 10 ), 50/60 hz
  • Current Draw: 85 watts
  • Electrical Current Draw (w) Idle 100 / 240 VAC: 3.52 / 3.70
  • Electrical Current Draw (w) Max 100 / 240 VAC: 80 / 80
  • Electrical Current Draw (w) Low-Power Standby Mode 100 / 240 VAC: 0.34 / 0.46
  • Enclosure Type: Ported
  • Enclosure Material: ABS with metal grille
  • Enclosure Finish: Matte black acrylic paint
  • Dimensions (HxWxD): 9.72 in (247 mm) x 6.02 in (153 mm) x 4.88 in (124 mm)
  • Net Weight:
  • Master Monitor: 4.54 lb (2.06 kg);
  • Slave Monitor: 3.81 lb (1.73 kg)

UK Delivery

FREE Next Working Day Delivery on orders over £49.00.

Orders placed before 4pm will normally be dispatched the same day and will be delivered on the next working day between 9am and 6pm.

Delivery Upgrade Options (Over £49)

  • Pre 12.00pm Next Working Day - £4.99
  • Pre 10.30am Next Working Day - £14.69
  • Saturday / Sunday - £14.99

Click here to view our delivery options

At Music Matter, our goal is to ensure complete satisfaction with your purchase.

If, for whatever reason, you are dissatisfied with your purchase, you can return it to Music Matter within 30 days of receiving the item, providing it arrives back in new condition.

You have the option of receiving a full refund / exchange within 14 days, or, exchange / credit only within 30 days.

Full Refund Within 14 days

In order to receive a full refund, you must notify us within 14 days of receiving the goods. Once you have notified us you will have 14 days to return the product to us.

Exchange Within 30 days

In order to exchange an item, you must notify us within 30 days of receiving the goods. Once you have notified us you will have days to return the product to us.

Goods received back 14 days after the cooling of period ends may be rejected.

Your returns period starts the day after you receive the item(s)

Click here to view our full Returns Policy.

Secure Online Payment Powered By Sage Pay 

We accept the following debit / credit cards:

Card Payments


Pay for your item(s) in just a few clicks with PayPal. PayPal

Buy now, pay later with PayPal Credit

PayPal Credit is like a credit card without the plastic. And with 0% interest for 4 months on all purchases of £99 or more, it’s the perfect way to spread the cost of larger online purchases.

It’s quick and easy to apply for PayPal Credit – all you need to do is choose to pay with PayPal at checkout, complete a short application form and they will give you a decision instantly. 

Representative Example:
Representative: 19.9% APR (variable)
Purchase interest rate: 19.9% p.a. (variable)
Assumed Credit limit: £1,200

This example above illustrates the typical cost of using PayPal Credit as a standard funding method. If you take advantage of their offers and promotions, including their 0% for 4 months offer, the interest rate that applies will be lower in many circumstances.

Simply choose to pay with PayPal at checkout and apply for PayPal credit.


Pay Later with PayPal Pay in 3

Split purchases into three interest-free monthly payments at millions of stores online.

Subject to status. UK residents only. Late fees apply. PayPal is a responsible lender. Pay in 3 performance may influence your credit score. T&Cs apply.

Simply choose to pay with PayPal at checkout and select PayPal Pay in 3 from your account.

Minimum 12 Months Warranty

All new & used goods supplied by Music Matter are warranted free from defects for 12 months from the date of supply (unless otherwise stated).

Extended Warranty

Many manufacturers offer a free extended warranty upon registration.