If you have purchased either a Benchmark HPA4or LA4amplifier and you currently have an older version of a DAC2or DAC3converter other than the DAC3 B, you may be eligible for a free DAC Firmware Upgrade Kit. Converters manufactured after 9/17/2018 are fully compatible with the HPA4 and LA4 and do not need this upgrade and do not qualify for a free upgrade kit. The date of manufacture is shown on the bottom of the unit.
Version 2.2 improves the power management and provides a very slight reduction in standby power consumption. Standby power consumption is reduced from 0.50 Watts to 0.28 Watts.
Note: The DAC3 B Firmware Version 1.1 is equivalent to Version 2.2 of the HGC and L.
New features in Version 2.1:
Preamp COMPATIBILITY mode
Versions starting with 2.0 include the preamplifier COMPATIBILITY mode. This mode disables the MUTE and DIM functions and places the volume control in the unity-gain HT position. Use this mode when the volume is being controlled by a downstream line amplifier such as the Benchmark HPA4.
When paired with an HPA4, the DAC3 and HPA4 can be controlled by a single Benchmark IR remote control. The HPA4 provides volume control, DIM and MUTE functions. Both units switch inputs in a coordinated fashion so that all digital and analog inputs are available. Place the DAC3 in compatibility mode and connect it to XLR input 1 on the HPA4. Select "Benchmark DAC on XLR1" in the HPA4 REMOTE menu.
Replacement cover screws
If you are located in a country served by our distributor network, you may not be able to order directly from our store. If the checkout option is not available, you will need to call or email our customer service department to order your kit.
The DAC3 circuit boards and the software chip can be damaged by static electricity. Use of an ESD wrist strap is recommended. If a wrist strap is not available, hold chassis with one hand while inserting chip and moving jumpers. Do not touch the circuit board until your other hand is making contact with the chassis.
The software chip will be damaged if it is inserted backwards. The white line must face the rear panel of the DAC3!