A high-end speaker set from the Master Stroke series. A proper SQ component set for mid-high budget installs where 2-way is required with a possible upgrade to 3-way active with the addition of the MS30 midrange driver. An extremely capable speaker set with lots of detail and smooth natural sound. Performs well both in IB/door use and also in special installs such as bass-reflex enclosures or AP membranes.
Very sturdy cones with non-pressed paper fronts and reinforced backing, die-cast aluminum baskets, leads stiched in the spiders, large 35mm voice coils, dyal type wire terminals, natural but extremely detailed soft dome tweeters with milled aluminum housings.
Manufacturer provided specs:
Woofer:
- Voice coil: 35 mm
- Rated power input: 50 W (in our experience this is extremely underrated)
- Frequency response: 60-5000 Hz
- DC Impedance: 3.6 Ohm
- Fs: 60 Hz
- Sensitivity: 88 dB
- SD: 136.8 cm2
- Bl: 6.56 Tm
- Qms: 2.94
- Qes: 0.48
- Qts: 0.42
- Vas: 11.83 L
- Cms: 444.84 mm/N
- Mms: 14.97 g
- Mmd: 14.05 m Kg
- Weight: 1.5 kg
- Mounting depth: 74 mm
- Mounting diameter: 147 mm
Tweeter:
- Voice coil: 28 mm
- DC Impedance: 4 Ohm
- Rated input power: 25 W
- Frequency response: 1000-22000 Hz
- Sensitivity: 90 dB
- Weight: 90 g
- Mounting depth: 14 mm
- Mounting diameter: 44 mm
Our own DATS measurements:
Right out of the box, no run-in. Vas of the woofer measured with the added mass method with an 18.5g added weight.
Woofer:
- Re: 3.482 Ohm
- Fs: 64.87 Hz
- Qts: 0.495
- Qes: 0.5807
- Qms: 3.356
- Le: 0.2243 mH at 10kHz
- BL: 6.765
- Cms: 0.321 mm/N
- Mms: 18.72 g
- Vas: 8.456 L
- Sensitivity: 91.5 dB 2.83Vrms
Tweeter:
- Re: 3.239 Ohm
- Fs: 922.9 Hz
- Qts: 1.09
- Qes: 2.198
- Qms: 2.164
- Le: 0.01734 mH at 10kHz
What's included:
- 2x Midbass
- 2x Tweeter
- 2x Crossover
- 1x Instructions