STEG Master Stroke ME650CII 6.5" component set

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