Replacing 8 ohm speaker with 16 ohm???

[bantoto]

Hey guys. I have a Laney VC30 112 with an HH invader speaker inside. Here are the specs:

HH Invader Vintage 35 watts
Nominal diameter 12", 305mm
Power Rating 40W
Nominal impedance 8? and 16?
Sensitivity 98dB
Chassis type Pressed steel
Voice coil diameter 1.75", 44.5mm
Voice coil material Round copper
Magnet type Ceramic
Magnet weight 31oz, 0.88kg
Frequency range 85-5000Hz
Resonance frequency, Fs 103Hz
DC resistance, Re 5.4? & 11.78?

On the back of my amp, it says "connect to internal speaker (8 ohm)". Can I replace this speaker with a 15 ohm Celestion G12H30?

Lance

[TweeDLX]

You can. I ran weird impedence mismatches for years before I knew about it. If you're running your amp way cranked, it may put extra stress on the OT. At medium levels, you won't notice much difference.

Mike

[VaughnC]

Using a higher impedance speaker increases the risk for flyback voltage arcing...but, most output transformers will usually tolerate a one step mismatch so you'll probably be ok...but you will sacrifice some clean headroom.

[strat a various]

Fenders will handle it, Marshalls hate it. I can't speak for Laney, but try it at your risk. Some OTs are not friendly to mismatches.

[SatelliteAmps]

VC30 schematic says it has taps for 4 & 8Ω, but not for 16Ω. Yours might be a later version that has a 16Ω tap (which would explain the spec's). If so, you should be able to swap to the correct tap and be fine.