
Sony STRDH770
Score: 87/100
Bobtot KW88
Score: 85/100Rankings

The Sony STR-DH770 is a mid-tier 7.2-channel AV receiver that offers powerful amplification, full-stack 4K/HDR pass-through, and convenient Bluetooth/NFC pairing, making it a solid choice for home-theater beginners. Its lack of Wi-Fi, modern streaming protocols, and advanced room-correction features keep it from being future-proof.

The Bobtot KW88 (KW79) wireless surround system delivers 1000 W peak power, an 8" subwoofer, and extensive connectivity, making it a strong budget option for home cinema and karaoke, though it lacks Dolby Atmos and full eARC support.
| Attribute | ![]() | ![]() |
|---|---|---|
145 W | 1,000 Wbest | |
— | 20 Hzbest | |
— | 20,000 Hzbest | |
— | 75 dBbest | |
4best | 1 | |
1best | — | |
4.2 | 5.3best | |
| ↓ lower better | 0.454 kgbest | 10.07 kg |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Connectivity(1) | ||
Bluetooth Version | 4.2 | 5.3 |
Video(1) | ||
HDMI Inputs | 4 | 1 |
Build & Design(1) | ||
Overall Weight (kg) | 0.4536 kg | 10.07 kg |
Warranty & Support(1) | ||
Warranty Period (months) | 12 months | 24 months |
Audio(2) | ||
Channel Configuration | 7.2 | 5.1 |
Total Power Output (W) | 145 W | 1000 W |


Products in the top-left offer the best value (high score, low price).

Professional reviewers praise the STR-DH770 for its strong 145 W per-channel output, reliable 4K HDR pass-through, and user-friendly D.C.A.C. calibration, while noting the lack of Wi-Fi, HDR10+, Dolby Vision, and advanced room-correction as drawbacks in 2026.
Everyday users appreciate the powerful sound, seamless Bluetooth/NFC pairing, effective D.C.A.C. calibration, and solid 4K video performance, but complain about missing Wi-Fi/app control, outdated remote, and occasional HDMI overheating.

Professional reviewers praise the KW79 for delivering crisp, immersive sound and deep bass at a low price, highlighting the convenience of wireless rear speakers and extensive connectivity, while noting the absence of Dolby Atmos, eARC and high-resolution audio support.
Everyday users love the cinematic sound, easy wireless setup, and karaoke features, but report occasional rear-speaker dropouts and wish LED lighting could be fully disabled without the remote.
“Powerful sound-easily drives my floor-standing speakers.”

“Bluetooth pairing with NFC is seamless.”

“D.C.A.C. calibration made a noticeable difference in soundstage.”


