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Description
Wharfedale DP-4035i Lightweight 1RU Multichannel Amplifiers Analog Inputs Stable Down to 2ΩThe new DP 4035i brings all the DNA of the DP series into a configuration which is perfect for fixed install. A versatile amplifier solution delivering 4 channels of power to either high or low impedance systems. The hardware is designed with installation in mind. A tamper proof front grille protects the channel volume controls while rear panel connections, including GPIO, use Euroblocks for easy install. The power switch is also safely placed on the
The new DP-4035i brings all the DNA of the DP series into a configuration which is perfect for fixed install. A versatile amplifier solution delivering 4 channels of power to either high or low impedance systems. The hardware is designed with installation in mind. A tamper-proof front grille protects the channel volume controls while rear panel connections, including GPIO, use Euroblocks for easy install. The power switch is also safely placed on the rear panel. As with the other models in the DP series, the input sensitivity is selectable between 1V and 0.775 V to cater for almost any input source. It is also able to deliver up to 4 x 1300 W into 2 Ohms or 4 x 765 W to a 100 V Hi-Z system DP-4035i also has a wide range AC input, allowing it to be used, reliably in environments where the AC supply may fluctuate.
Features
- Made for installation
- GPIO connections
- 4-channel operation
- 2 Ohm stability
- 100 V / 70 V operation
- Low impedance operation
- Switchable input sensitivity
- Wide range AC input
Specifications
- Rated Power (W – THD = 1%, Each channel works simultaneously with continuous sinusoidal @ 1 KHz):
- 8 Ω / Stereo: 4 x 450
- 4 Ω / Stereo: 4 x 765
- 2 Ω / Stereo: 4 x 765
- 16 Ω / Bridge: 2 x 900
- 8 Ω / Bridge: 2 x 1530
- 4 Ω / Bridge: 2 x 1530
- 100 V Hi-Z: 4 x 765
- 70 V Hi-Z: 4 x 450
- Rear panel:
- Input Connectors: Phoenix MC 1,5/12-ST-3,81
- Remote Level control (10 Kohm) connectors: Phoenix MC 1,5/12-ST-3,81
- Output Connectors: Phoenix PC 5/8-STF1-7,62
- GPIO – Remote ON/OFF – Link connectors: Phoenix MC 1,5/6-ST-3,81
- Mode Switch: LO-Z, HI-Z 100 V, HI-Z 70 V, MONO-BRIDGE
- Input Sensitivity Switch: 1 V (35 dB), 0.775 V (38 dB)
- Front Panel:
- Signal LED: Green / -32 dBu – Yellow / Limit – Red / Protection
- Power LED: Green / ON – Yellow / High Temperature
- Level Control:
- THD+N: Typical: 0.05%. (10% Rated Power, 8 Ω)
- Cross-Talk: ≥90 dB (20 Hz-1 KHz, Below Rated Power)
- Frequency Response:
- Lo-Z, 8 Ω: Typical: ±0.5 dB (10% Rated Power, 20 Hz-20 KHz)
- Hi-Z: Typical: ±0.5 dB (10% Rated Power, 40 Hz-16 KHz)
- Input Impedance: 20 kΩ (Balanced), 10 kΩ (Unbalanced)
- Damp Factor: Typical: 300 (20 Hz-200 Hz, Lo-Z, 8 Ω)
- SNR: ≥100 dB (A weighted, 20 Hz-20 KHz, 8 Ω)
- Main Power: 100~240 V AC ±10%，50/60 Hz
- Protection: Under voltage, DC, Over temperature, Limiter, Overload, Short.
- Net Size: 483 x 45 x 370 mm (W×H×D)
- Net Weight: 8.4 kg
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Exactly the Desk Chair I Was Looking For
Color: Black
had been needing a new desk chair for a while, and this one has been a great addition to my workspace. I use it every day while working, and it feels very comfortable, even when sitting for long periods of time. The seat provides good support, and the backrest helps me stay comfortable throughout the day.
Assembly was straightforward, and the instructions were easy to follow. I also like how well it fits in my workspace and how nice it looks. So far, I am very happy with the comfort and overall quality. It has definitely made my workdays more enjoyable.
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Reviewed in the United States on June 8, 2026
★★★★★ 4
very ergonomic
Color: Deep Black, Color: Deep Black
I bought this as a replacement for one of those gaming chairs that kills your back with a little lumbar pillow and this one is muuuuch better. the back support is everything you’d need and got rid of my neck pain after long periods of sitting and the seat cushion is supportive but still comfortable. It’s the kind of chair that you don’t really think about much because it’s so natural to sit in that you forget it’s there. The armrests flipping is a really nice feature too. One star off only because the head rest is so far back that i can’t really rest my head on it and every part of the chair that’s cloth is made of the same mesh texture like the armrests and seat. but i have no other complaints this is a good chair
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Reviewed in the United States on March 14, 2026
★★★★★ 5
Comfortable Ergonomic Chair for Long Workdays
Color: Black, Color: Black
I’ve been using this chair for my home office, and it’s been a great addition to my workspace. The seat cushion is thick and comfortable, even after several hours of sitting, and the mesh back keeps good airflow throughout the day. I especially like the adjustable headrest, which provides extra neck support when leaning back during breaks. Assembly was straightforward, the chair feels sturdy, and the wheels roll smoothly on my floor. The all-black design also gives it a professional look that fits well in any office setup. Overall, it’s a comfortable and affordable ergonomic chair that offers excellent value for the price.
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Reviewed in the United States on May 28, 2026
★★★★★ 3
Sturdy but uncomfortable
Color: Black
The seat itself is sturdy and easy to put together, I’ve now had the product for 8 months and had no issues wear/tear despite nearly daily use, but… it’s not comfy, at all. The seat cushion has a texture to it that scrapes at my legs if I don’t have an extra pillow on it or am wearing shorts. Additionally, the seat pillow is just kind of hard. It doesn’t give very much at all, so if I sit on it for more than an hour or two at a time my butt starts to get really sore. It works as a budget option, but invest in a good seat pillow if you plan to sit in it for any length of time.
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Reviewed in the United States on April 29, 2026
★★★★★ 5
A chair that does the job
Color: Black, Color: Black
I’m really happy with this chair overall. I wanted something comfortable, sturdy, breathable, and spacious enough for long hours at my desk when I work from home, and this chair delivered. I’d easily give this chair five stars because it exceeded my expectations in comfort, quality, and overall value.
Comfort and Support
The mesh back keeps it cool and comfortable during extended use. One of my favorite features is the adjustable lumbar support. You can manually position it exactly where your lower back needs support, and it fits the curve of my back perfectly. It provides great support without feeling too firm or uncomfortable.
Build Quality and Design
The chair itself feels solid and well-built. It doesn’t creak or make noise when shifting around, which makes it feel stable and high-quality. The seat is roomy and comfortable, and the overall design looks clean and modern.
Easy Assembly
It also came with an instruction manual that was extremely simple to follow, and assembly was very easy. I was able to put the chair together by myself in about 20 minutes without any help.
Armrest Functionality
I also like the armrests. They aren’t adjustable by height, but they do flip all the way up, which is surprisingly convenient. You can easily slide the chair under a desk or use it as an armless chair when needed.
Packaging and Presentation
Another thing worth mentioning is the packaging. Everything arrived extremely well-packed. Every individual part of the chair was wrapped securely, including bubble wrap protection for the components. The hardware and accessories were neatly organized, and the chair even came with the necessary tools for assembly in case you don’t own a drill or tool set. The presentation and packaging were excellent and showed real attention to detail.
Overall Impression
Overall, this is a fantastic office chair for the price: comfortable, supportive, sturdy, easy to assemble, and packaged exceptionally well. I’d absolutely recommend it and would confidently give it a five-star rating.
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Reviewed in the United States on May 23, 2026