MTG Designs - HiVi M8N-1B

HiVi M8N-1B

HiVi M8N-1B - 8" Damped Aluminum/Magnesium Cone Woofer - 8 Ohm Nominal

Half-Space measurements taken on my turntable mounted IEC Style Baffle jig. Woofer in a heavily damped 1cuft sealed rear chamber.

The On/Off axis measurements were taken at 2.83v / 50cm and scaled -6dB for equivalent 1m levels.

Distortion measurements taken at 20cm - level specified in measurements

Frequency response measurements are gated at 6ms. Smoothing applied is 1/48th octave. Woofer frequency response blended to nearfield measurement below 400Hz.

T/S Specs from DATS v2:

* Piston Diameter = 165.1 mm

* f(s)= 40.38 Hz

* R(e)= 6.383 Ohms

* Z(max)= 68.42 Ohms

* Q(ms)= 5.41

* Q(es)= 0.5567

* Q(ts)= 0.5047

* V(as)= 31.1 liters (1.098 cubic feet)

* L(e)= 1.397 mH (@ 1kHz)

* n(0)= 0.3506 %

* SPL= 87.55 1W/1m

* M(ms)= 32.16 grams

* C(ms)= 0.483 mm/N

* BL= 9.673

* K(r)= 0.07594

* X(r)= 0.5198

* K(i)= 0.01678

* X(i)= 0.6778

Half Space On/Off Axis Measurements - 2.83v/1m Equivalent

Half Space On/Off Axis Measurements - Normalized to On-Axis:

Directivity Sonogram:

Impedance - Free Air

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