Include your model number and serial number and contact VTL for prices and more details on the upgrade available for your VTL equipment.
Current Product Upgrades
Upgrades to current versions are available for the following products:
- TL7.5 Series I and Series II Reference Preamplifier
- Siegfried Series I Reference Monoblock Amplifier
- MB-450 Series II Signature Monoblock Amplifier
- MB-185 Series II Signature Monoblock Amplifier
Please contact VTL for details
Signature Output Transformer Upgrade
These are the new proprietary VTL Signature output transformers which we use in our current Signature Monoblock amplifiers. The advantage of the Signature transformers is that the frequency response of the amplifiers will be much further extended for both the highs as well as the bass frequency. This has been a very popular upgrade for many of our existing customers, and the one upgrade which would give you the excellent sonic improvements.
This upgrade is available for certain models only. Please contact VTL to find out if the Signature upgrade is available for your amplifier.
Coupling Caps Upgrade
Another popular upgrade is to change the caps in the signal path to the current production audiophile quality caps. These special caps can add clarity and resolution to your amplifier.
RCA Jacks and Binding Posts Upgrades
If your existing jacks and binding posts are getting tarnished, upgrading to our new custom gold-plated jacks and binding posts can also improve the sound of the amps.
If your older VTL amplifiers do not come with B+ fuses, the factory can add the B+ fuse to your amplifier. The B+ fuse provides protection and protects your amplifier against damage from tube failure.
You can also order replacement fuses from VTL. Please contact VTL with the serial number and model number of your amplifier for the proper fuse values for your VTL equipment.
External Bias Measurement and Adjustment Points
If your older VTL amplifiers are not equipped with external bias measurement and adjustment points available from the deck of the amplifier, an upgrade is available to add the bias trim pots and bias measurement points to your amplifier.
Replacement output tubes, input and driver tubes for most VTL models are available from the factory. Please contact VTL for the tube type that you wish to order, and include the serial number and model number of your VTL equipment with the request.
This upgrade is available for certain models. Please contact VTL with the serial number and model number of your amplifier for more information on this upgrade. To read more about this feature, please see VTL Tetrode-Triode Switching Capability.