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00:00:00 – 00:24:26
The YouTube video is a thorough review of the FiiO BTR7 Bluetooth amplifier, highlighting its features and performance. The device offers high-quality audio transmission with Bluetooth codecs and a THX amplifier. Various aspects, such as the balanced connector, EQ settings, and amp controls, are discussed. The speaker covers troubleshooting methods, including low latency Bluetooth transmission and volume adjustments. The video also explores sound quality enhancements through distortion compensation and harmonic distortion. Testing includes usage with different headphones and settings, and the BTR7's ability to drive headphones efficiently is commended. Overall, the BTR7 is recommended for its practicality, especially for on-the-go music and movie watching. Viewers are encouraged to support the channel and share their impressions for a comprehensive understanding of the product.
00:00:00
In this part of the video, Theo’s new btr7 is introduced as a Bluetooth deck and amp that allows users to make their wired earphones and headphones wireless. The device includes the latest Bluetooth audio codecs and a THX amplifier for high-quality audio transmission. It is designed for individuals seeking better audio quality than cheaper adapters offer, and it can be used with devices like Bluetooth-enabled TVs. The btr7 features a larger, brighter front screen compared to the previous btr5 model, displaying Bluetooth transmission method, sample rate, volume, and transmission strength. The device has a modern, edgy design and includes USB-C input. Further details about the features, software compatibility, and audio performance relative to other gear are discussed in the video segment.
00:03:00
In this part of the video, the speaker explains that the device has both a normal 3.5mm socket and a balanced 4.4mm socket. The balanced connector is seen as a premium feature, even though it may not be necessary for portable use. The device allows for control through various buttons and has a charge button that can be switched off to use the device via USB without charging. There are menu options for adjusting gain levels, digital filters, and EQ settings via the FiiO app. The speaker suggests trying different filters and EQ settings to see if they make a noticeable difference in sound quality.
00:06:00
In this part of the video, the speaker discusses various settings and features of the device. They mention adjustable presets in the app, a car mode that powers the device on and off automatically through USB, the ability to switch between USB audio modes for compatibility with older devices, screen brightness adjustment, multiple language options, input priority settings, and firmware updates. The speaker also highlights additional functionalities accessed through the FiiO app, such as idle power off settings, Bluetooth codec selection, and more detailed controls.
00:09:00
In this segment of the video, the speaker discusses troubleshooting Bluetooth connection issues by switching off LDAC and trying other codecs. They also explain how to use aptx LL for low latency Bluetooth transmission, which is beneficial for watching videos with less delay. Other key points include adjusting volume limits, separating Bluetooth and call volumes, channel balance adjustment, boosting balanced output for headphones, and the concept of distortion compensation in audio devices.
00:12:00
In this segment of the video, the speaker discusses how adding even order harmonic distortion can improve the sound quality of devices with cheap digital-to-analog converter chips. They mention that this addition provides a subtle enhancement, giving a slightly tubish sound. The speaker also explains how adjusting the equalizer settings on the device, such as enabling user EQ presets, can further customize the sound output. Additionally, the speaker highlights considerations for minimizing hiss with sensitive monitors, performance with full-sized headphones, and the device’s ability to connect via USB without noise interference.
00:15:00
In this segment of the video, the speaker tests a BTR7 Bluetooth amplifier with a track of digital silence to confirm it does not produce any hiss. The BTR7 has deliberately higher output impedance to reduce hiss without affecting monitor interaction. The speaker then performs a torture test with high-powered headphones, such as the Dan Clark Audio Expanse, listening at boosted gain levels to test the amplifier’s limits. Despite not being extremely powerful, the BTR7, using a THX AAA 78 amplifier, surprised the speaker by handling the headphones well at maximum volume without significant distortion or sound quality issues.
00:18:00
In this part of the video, the speaker discusses the struggle with the amp’s performance at higher volumes. They mention that the headphones they use are easy to drive and provide good sound quality. The speaker highlights the balance between low distortion and good headphone drive in the device. They note that the device performs well with portable gear and the DAC chip used may introduce some treble edginess. The speaker also points out that connecting the device to a computer via USB may result in noise, but using it with a phone directly could work better.
00:21:00
In this part of the video, the speaker discusses testing the BTR7 without any noise filtering and finding no difference in sound quality compared to using noise filters. The BTR7 is praised for driving full-sized headphones and being an alternative to devices like the Fiio’s K3 for computer use. The design is noted as a negative due to sharp edges, but the device’s functionality, including driving headphones and in-ear monitors well, is highlighted. The speaker recommends the BTR7 for watching movies or listening to music on the go, stressing the practicality of the device. The 4.4-millimeter socket and headphone boost are mentioned as positive features. The speaker gives a positive review, recommends purchasing through affiliate links, and encourages viewers to share their impressions in the comments for a more comprehensive understanding of the product.
00:24:00
In this segment of the video, the speaker advises viewers to save money by following their tips and suggests supporting them by buying them a coffee or donating via Patreon. They emphasize the importance of receiving feedback and express gratitude for viewers’ support.