Renovation of repro walls

After many years of trouble-free use, I had to resort to refurbishing the speakers because the bass speaker went out while testing a repaired amp and a vintage electric guitar.

Original article reprobeden production.

I tried to get the same speakers, but the Czech manufacturer Tesla Valašské Meziříčí later company TVM Acoustics s.r.o., has already closed down under strange circumstances. Therefore, I eventually purchased other suitable speakers.

Parameters

• Bass speaker
• Impedance: 4 Ohm
• Sensitivity: 90dB/W/m,
• Wattage: 200W RMS/400Wmax
• Dimensions: 15" = @380mm
• Frequency range: 25Hz-1.5kHz
• steel basket, paper profiled diaphragm, PE suspension
• citation coil 50mm on Al frame
• ferrite magnet 40OZ(1100g)

Photos

Progress and result of installation of new bass speakers.

Bass speaker:


Enlarge the hole for the new speaker:


Connecting the new speaker:

Refurbished speakers: