Compare detailed specifications, side-by-side differences, verified user reviews, and buying recommendations to help you make the right choice.
Deciding between the Pyle PT684BT and the Harman Kardon HK 3700 depends on your available space, storage capacity goals, and everyday usage style:
Designed for large households, bulk grocery shoppers, and long-term storage where total cubic feet is the highest priority.
Ideal for apartments, offices, dorms, or secondary kitchen use where space efficiency and neat organization are paramount.
| Specification | Pyle PT684BT | Harman Kardon HK 3700 |
|---|---|---|
| Additional Features | ||
| Smartphone Remote Control | Yes | No |
| Three-zone Capability | No | No |
| Dual-zone Capability | — | No |
| A-B Speaker Switch | Yes | Yes |
| Pure Direct Mode | Yes | No |
| Auto Power Off | Yes | Yes |
| Bi-amplifying | Yes | Yes |
| Audio Return Channel (ARC) | Yes | No |
| Apple Air-play Support | No | No |
| Advanced Sound Retriever (ASR) Technology | — | No |
| Functions | ||
| Network Audio Player | No | No |
| Internet Radio | No | Yes |
| Digital Player | Yes | Yes |
| Power Device | ||
| Standby Power Consumption | 0.3 W | 0.5 W |
| Operational Power Consumption | 600 W | 310 W |
| Built-in Decoders | ||
| DTS:X | No | No |
| Dolby True HD | Yes | No |
| Dolby Surround | Yes | No |
| Dolby Digital Plus | Yes | No |
| Dolby Atmos | Yes | No |
| Connectivity Interfaces | ||
| WI-FI | No | No |
| Bluetooth | Yes | No |
| IEEE 802.3u | No | No |
| IEEE 802.3 | No | No |
| Connector Type | ||
| Optical Digital Inputs | 1 | 2 |
| Phones | 1 | 1 |
| AV Inputs | has not | — |
| USB | 1 | 1 |
| Subwoofer Outputs | 1 | 1 |
| Coaxial Digital Outputs | has not | has not |
| Optical Digital Outputs | has not | has not |
| HDMI Outputs | 1 | has not |
| HDMI Inputs | 2 | has not |
| Coaxial Digital Inputs | 1 | 1 |
| Audio Formats | ||
| WMA | Yes | Yes |
| WAV | Yes | Yes |
| MP3 | Yes | Yes |
| FLAC | Yes | Yes |
| Apple Lossless | Yes | Yes |
| AIFF | No | No |
| AAC | No | Yes |
| Clock | ||
| Sleep Timer | Yes | Yes |
| Built-in Clock | Yes | Yes |
| Built-in Display | ||
| Colour | black | black |
| Type | fluorescent | fluorescent |
| Signal Processing | ||
| Upscaling Via HDMI | Yes | No |
| 3D Pass-through | Yes | No |
| Video Conversion/scaling | Yes | No |
| HDMI Pass-through | up to 4K | No |
| Radio | ||
| Preset Station | 12 | 40 |
| Tuner Bands | AM/FM | AM/FM |
| Tuner Type | digital | digital |
| Amplifier | ||
| Total Harmonic Distortion | 0.5 % | 0.07 % |
| Frequency Response | 20 Hz-20 kHz | 20 Hz-20 kHz |
| Output Impedance Per Channel | 4 Ohm, 6 Ohm, 8 Ohm | 8 Ohm |
| Output Power Per Channel | 120 W | 85 W |
| Total Output Power | 720 W | 190 W |
| Sound Features | ||
| Digital Content Protection | has not | — |
| Surround System Class | 5.1 channel | 2.0 channel |
| Surround Sound Effects | Dolby Surround | has not |
| Audio D/A Converter | 32bit / 192kHz | 24bit / 192kHz |
| Media Content Source | ||
| USB-host | Yes | Yes |
| Network | No | Yes |
| Bluetooth | Yes | No |
| Dimensions | ||
| Dimensions | 16.9 x 15 x 5.7 inches | 21.1 x 15.4 x 8.5 inches |
| General | ||
| Brand | Pyle | Harman Kardon |
The main differences center around storage capacity, form factor, and convenience. The Pyle PT684BT provides extensive bulk storage capacity best suited for homes, garages, or basements needing deep freeze space. In contrast, the Harman Kardon HK 3700 offers a compact upright design that fits into smaller spaces with convenient shelf organization.
Chest-style freezers generally excel in thermal efficiency because cold air naturally settles at the bottom and does not escape when the lid is lifted. Compact upright models have lower total kilowatt-hour usage simply due to their smaller cubic volume, making both designs efficient for their respective intended purposes.
Both products are listed on Amazon with full manufacturer warranties, customer reviews, and fast delivery options. Click the "Check Price on Amazon" buttons in the comparison cards above to view today's latest promotions, verified customer ratings, and current availability.
Measure your available floor clearance first. If you have open space in a garage, basement, or utility room and want to freeze items in bulk, choose the Pyle PT684BT. If you have limited room in a kitchen, apartment, dorm, or office and prefer easy eye-level access to items, choose the Harman Kardon HK 3700.
