Wazup wit dis

Gowa

f(s) = 72.67 Hz

Q(ms) = 9.257

V(as) = 10.33 liters (0.365 cubic feet)

n(0) = 0.62 %

M(ms) = 12.24 grams

R(e) = 6.93 Ohms

Q(es) = 0.614

SPL = 89.99 dB SPL 1W/1m

C(ms) = 0.39 mm/N

Piston Diameter = 132.1 mm

Z(max) = 111.37 Ohms

Q(ts) = 0.576

L(e) = 0.150 mH at 10kHz

SPL = 90.61 dB SPL 2.83 Vrms

BL = 7.94

Gowa

.....and

f(s) = 49.12 Hz

Q(ms) = 6.463

V(as) = 22.72 liters 

n(0) = 0.55 %

M(ms) = 12.18 grams

R(e) = 6.96 Ohms

Q(es) = 0.469

SPL = 89.48 dB SPL 1W/1m

C(ms) = 0.86 mm/N

Piston Diameter = 132.1 mm

Z(max) = 102.89 Ohms

Q(ts) = 0.437

L(e) = 0.150 mH at 10kHz

SPL = 90.08 dB SPL 2.83 Vrms

BL = 7.47

Wolf

Qms is MUCH higher on the first one, and meas Vas reflects that, along with a higher Fs. Are they broken in?

I'd flex the suspensions, and remeasure.

Gowa

Both drivers were Dats measured cold out of the box. The first one is Kevlar and the second is paper. Pretty high spl on both though. Big Rival Magnets as well.

Gowa

These are OEM drivers. I did a bit of flexy with the cones and this is what I have. They indeed have the 120 mm magnets.

Rival Acoustics RO182-OKL-08 (OEM) Same basket as Wavecor

Kevlar cone with Bimax spider

f(s) = 49.12 Hz

Q(ms) = 5.205

V(as) = 17.90 liters (0.632 cubic feet)

n(0) = 0.42 %

M(ms) = 15.46 grams

R(e) = 7.00 Ohms

Q(es) = 0.476

SPL = 88.38 dB SPL 1W/1m

C(ms) = 0.68 mm/N

Piston Diameter = 132.1 mm

Z(max) = 83.50 Ohms

Q(ts) = 0.436

L(e) = 0.148 mH at 10kHz

SPL = 88.96 dB SPL 2.83 Vrms

BL = 8.37

 

Rival Acoustics R176-CPB-08 (OEM)

Paper cone with Bimax spider

f(s) = 39.03 Hz

Q(ms) = 5.329

V(as) = 24.38 liters (0.861 cubic feet)

n(0) = 0.32 %

M(ms) = 17.98 grams

R(e) = 7.06 Ohms

Q(es) = 0.433

SPL = 87.14 dB SPL 1W/1m

C(ms) = 0.93 mm/N

Piston Diameter = 132.1 mm

Z(max) = 93.88 Ohms

Q(ts) = 0.401

L(e) = 0.147 mH at 10kHz

SPL = 87.68 dB SPL 2.83 Vrms

BL = 8.48

Wolf

If those are the same 2 drivers, you can see it is an improvement over the previous grit.