Note: The Carver M4.0t, TFM-4.0t, TFM-45 and TFM-42 are all the same amplifier with only minor variations for display and chassis.
The restore for the Carver M-4.0t amp and its kin includes replacement of all consumable parts with high quality audio grade components, replacement of vital thermal isolators on output stage, upgrade of power supply rectifiers, upgraded input wiring to noise rejecting premium microphone cables, reflow of questionable solder, all service bulletins, any needed repairs* and cleaning inside and out. The restore includes extensive work involving the power supply and signal path:
- The high voltage rail capacitance is significantly increased with a low ESR array to greatly improve transient response. Long-life, audio grade Nichicon capacitors are installed for the low voltage rails.
- The old ceramic and polyester capacitors are removed from the signal path and replaced with modern film type.
- Critical resistors are replaced and upgraded with high quality metal film.
- The transfer function is meticulously calibrated to the originally intended response for a smooth, accurate and musical experience.
As a result, amplifier's noise floor and power are much improved, and it's longevity extended for decades. We do not just perform a simple 'recap' like most others. Many techs and DIYers are not aware of the intricate service bulletins and updates which are necessary to make these amps perform at the very best. Flippers on Ebay may offer a good deal, but you're not getting what you really expect. All they do is replace some capacitors and if the unit powers up, they list it.
The mkII upgrade is now available for these units! See below for details.
Trust the experts. We know how a Carver should work and sound.
Complete disassembly of amp:
Clean Up:
Thermal isolators replaced on the output stage:
Power supply upgrades:
Finished TFM-42:
IEC socket option (power cable not included):
Gold 5-way binding posts:
The 'audiophile' restore option. The amp is upgraded on many levels. New speaker posts, IEC socket, new premium wiring, new LEDs (if applicable), signal path upgraded, power supply upgraded, fully restored and cleaned. The result is an amplifier that performs better than factory with upgrades it should have always had to run with a truly advanced system in terms of quality and presentation.
Comes with the Nelion Audio 3-year warranty.
Restore Cost: $390.00
Add the optional LED upgrade with the color of your choosing for (TFM-45 and M4.0t only): $40.00
Add gold plated 5-way binding posts for: $60.00
Add IEC C-14 socket: $75.00
Add Gold RCA jacks: $40.00
The 'Audiophile package' with LED upgrade, gold binding post upgrade, IEC socket, signal path upgrade, power supply upgrade and premium silicone interconnect wiring: $175.00
Add the mkII upgrade to increase power from 375W/channel to 475W/channel: $75
* 'Repairs' are any failures from normal use. 'Repairs' don't include things like scratches, cracked circuit boards, water or fire damage, or any extreme damage that makes the unit unusable.
