Hello, I just joined, primarily for the audiophile products. Looking at purchasing the NHT C3 speakers for our new living room. Space is about 15 feet wide by 33 long and they will fire long ways. Space is just for general listening, music room with all equipment is downstairs, so hoping they will fill it with sound nicely. Cheers.
Mar 18, 2024
General Notes The Objective2 strictly requires an AC-to-AC transformer, with minimum 13.50VAC output (14VAC+ recommended). AC/DC adapters are very different from AC/AC adapters. Manufacturers commonly abbreviate and refer to all types simply as "AC Adapters", which gives no indication of their actual output. Most adapters are in fact AC/DC type, which supply DC current. These power adapters are used with typical electronics such as laptops, game consoles, computer peripherals, etc., and are not compatible with the Objective2. Required Characteristics The Objective2 accepts the following power adapter characteristics: Type: AC-to-AC Transformer (AC/AC, not AC/DC!) Voltage: 14VAC minimum, 20VAC maximum Current: 200mA minimum, no maximum Plug Size: 2.1 x 5.5mm (Inner Diameter x Outer Diameter) Choosing a Suitable AC/AC Adapter The above table is a user compiled list of power adapters suitable for use with the Objective2. Select an adapter with the correct plug type for your country. Refer to the following resources for help with plug types: Power Plugs by Country - Electric Power Around The World
Comparison of Plugs - AC Power Plugs If no adapters are listed with your country's plug type, try to select a foreign adapter with the correct Input Voltage and Frequency for your region. Then use a plug converter, such as the Kingsmart UNI001. As a last resort, you may need to use a Step-Down transformer in conjunction with one of the commonly available North American power adapters. One example is the Simran SMF-200. From JDS Labs website (http://www.jdslabs.com/O2_poweradapters.php)
- 110V
- 230V
I could only choose the 110V at the checkout (the other option was sold out), and so needed to see what I could use here in Australia being 240V mains power. The contact/help was totally useless - took ages for them to write me copy/paste one-liners with no substance and they didn't understand the questions I asked them. Very disappointing and expected more. I found a Jaycar Mains Adaptor 15VAC 1.5A Unregulated, MP3059 (https://www.jaycar.com.au/mains-adaptor-15vac-1-5a-unregulated/p/MP3059). (So I have a spare/leftover 110V adaptor for the US...) The device plugs into the power as well as the USB plugging into your laptop/pc/AV jack. See the operation manual below. If you have 3.5mm headphones plug you also need to buy an 6.5mm Stereo Plug to 3.5mm Stereo Socket Adaptor like this one: https://www.jaycar.com.au/6-5mm-stereo-plug-to-3-5mm-stereo-socket-adaptor/p/PA3590 Here are the operating instructions that came with the device (there was no other paperwork): outside, unfolded