MS Monitors Monitor Speaker Systems

MS401 [4" x 1" - 50W] - MS601 [6" x 1"- 80W] - MS801 [8" x 1" - 100W]

The objective for the designers of MS series Indoor/Outdoor line-up was to take the compact wall mount speaker to a new standard of value and performance. The result is refined appearance, high fidelity vocal\music reproduction coupled with easy installation/service.

The all-weather MS Series loudspeakers are the ideal choice in high fidelity sound for discreet indoor and outdoor applications. Their advanced polymer housing is designed to be acoustically inert while able to withstand harsh outdoor and maritime environments.

Quest MS Monitor Speaker System

A Closer Look

The MS Series mounting hardware and full face grills are made from sturdy aluminium to drastically reduce corrosion. The vented cabinet design and high-compliance woofers generate realistic bass response in open air applications and the high-efficiency soft dome tweeters yield extended high frequency response.

Whether low impedance or 70/100 volt line installation, custom designed drivers and matching passive circuitry enables MS series indoor/outdoor loudspeakers to provide levels of vocal clarity and bass performance that substantially exceed their physical size.

The result is a lightweight, easy to install box with highly flexible powering options and excellent output capability.

Available in two colours, black (standard) or in white (W version).

MS Series Monitor Speaker System

Power Me Up

Quest Engineering recommends an amplifier capable of delivering 100-240W (8ohm) to ensure full performance. Depending on how many monitors and\or which models are used in a particular configuration, the perfect solutions are Quest's QA1004 or QA2004.

QA1004 Power Amp

For 100V installations, the QTA-D range of digital amplifiers provide the perfect power solution for all MS Series models also. Find out more on QTA-D amplifiers here.

QTA-D 4240 Top


MS 401 MS 601 MS 801
Peak  Power 100 W 160 W 240W
Power Handling 50 W 80 W 100W
Type Bass Reflex
Impedance Nominal 8 Ω
Transformer Tappings 25 W / 20 W / 15 W / 10 W + 8Ω Direct 40 W / 30 W / 20 W / 10 W + 8Ω Direct 60W / 40W / 35W / 20W + 8Ω Direct
Components LF 4” Poly Propylene Cone, RubberSurround, 25 mm Voice Coil 6.5” Poly Propylene Cone, RubberSurround, 35 mm Voice Coil 8” Mica and PP Cone, RubberSurround, 35mm Voice Coil
Components HF Dome Tweeter,  PEI Diaphragm,20 mm Voice coil Dome Tweeter,  Silk Membrane,25 mm Voice Coil Dome Tweeter,  Silk Membrane,25mm Voice Coil
Angle of Coverage 90° x 90°
Sensitivity 1W @1 meter 88 dB 93 dB 95dB
Max SPL 108 dB 110 dB 114dB
Frequency Response 80 Hz - 20 Khz ± 4 dB 60 Hz - 20 Khz ± 3 dB 55Hz-20Khz ±4 dB
Crossover Frequency 3000 Hz
Crossover 12 dB
Enclosure Material UV Stabilised ABS
Brackets Material Aluminium
Grille Material Aluminium
Dimensions WxHxD 153 mm x 278 mm x 180.5mm 195 mm x 335 mm x 214 mm 259 mm x 445 mm x 290 mm
Net Weight 2.6 kg 4.35 kg 5.75kg
Shipping Weight 3.3 kg 5.5 kg 7 kg

Contact Quest

Phone: +61 (0) 3 8373 6868

Address: 130 -140 Melrose Dr, Tullamarine VIC 3043 Australia

Postal: P.O. Box 1071 Tullamarine VIC 3043 Australia

Find Your Local Distributor

Feel free to get in touch with your nearest distributor. We’re always happy to hear from people interested in our products and we’re always ready to help you with your next project. You can find your nearest Quest distributor on the map below.

Contact Form

For general enquiries email Quest Directly using the enquiry form below.