Hertz Dieci DP 2.200 2 Channel Stereo Amp Hi Res Class A B Amplifier 220w RMS
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The Hertz Dieci DP 2.200 is a compact, Hi-Res Audio certified 2-channel Class AB car amplifier from the Hertz Dieci Power range, delivering 2 x 80W RMS at 4 ohms, 2 x 110W at 2 ohms, or 220W bridged at 4 ohms. Speaker-level inputs and automatic turn-on make it straightforward to integrate with factory or aftermarket head units.
This listing is the 2-channel DP 2.200. The Hertz Dieci Power amplifier range is also available as the 4-channel DP 4.300.
Key specifications
- Channels: 2, bridgeable to 1
- Amplifier class: AB
- RMS power at 1% THD: 2 x 80W at 4 ohms, 2 x 110W at 2 ohms, 1 x 220W bridged at 4 ohms
- RMS power at 14.4V, 10% THD: 2 x 95W at 4 ohms, 2 x 130W at 2 ohms, 1 x 260W bridged at 4 ohms
- Bandwidth: 10 Hz to 45 kHz (-3 dB), Hi-Res Audio certified
- Inputs: Pre-In (0.32–8 Vrms) and Speaker-In (1.6–40 Vrms), full-range pre-out
- Crossover: high-pass and low-pass, 50–4000 Hz, 12 dB/oct
- Bass boost: 0–9 dB at 50 Hz
- Operating voltage: 6.5–16.5 VDC, fuses 2 x 20 A
DP 2.200: 2/1 channels, 260W maximum
The Hertz Dieci Power DP 2.200 is a compact amplifier designed to upgrade your car audio system.
Hi-Res Audio certification and a frequency response of 10 Hz to 45 kHz ensure every detail of your music is reproduced accurately.
Despite its compact size, the DP 2.200 uses fully bridgeable 2-channel Class AB amplification with 2 ohm stability, delivering strong performance in a small footprint.
A status LED, machined terminal block and removable top panel protecting the controls and connections give the amp a clean, installation-ready finish.
Operating supply voltage spans 6.5 to 16.5 V, and Speaker-In sensitivity runs from 1.6 to 40 Vrms. An integrated Universal Speaker Simulator ensures reliable performance across a wide range of audio sources.
Balanced input circuitry on both Pre-In and Speaker-In provides high noise rejection. Controls include adjustable input levels, high-pass and low-pass crossover filters (50–4000 Hz, 12 dB/oct) and bass boost for precise sound tuning.
Automatic Remote Turn-On/Off is triggered by OEM radio speaker outputs, keeping operation simple and power management efficient.
Both Speaker-In and Pre-In inputs pass through to full-range pre-outs, adding further flexibility when building or expanding a system — pair the DP 2.200 with speakers such as the Hertz Dieci DSK 165.3 component speakers for a well-matched Hertz setup.
Explore the full range in 2 Channel Amplifiers.
Specification
| Channels | 2 - 1 |
|---|---|
| Amp class | AB |
| Nominal power supply voltage (fuse) | 11 - 15 VDC (2 x 20 A) |
| Operating power supply voltage | 6.5 - 16.5 VDC |
| Idling current | 0.65 A |
| Standby current draw | 5 uA |
| Remote IN | 4 - 15 VDC (1.5 mA) |
| Efficiency | 60% |
| Damping factor @ 1 kHz, 1W | 130 |
| Bandwidth @ -3 dB | 10Hz - 45kHz |
| S/N ratio (A-weighted @ 1 V Input) | 100 dBA |
| @ 2 Ch | 2 Ω |
| @ 1 Ch | 4 Ω |
| Pre-In sensitivity | 0.32 - 8 VRMS |
| Speaker-In sensitivity | 1.6 - 40 VRMS |
| Bass Boost 50Hz | 0 - 9 dB |
More specs
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What's Included
- Hertz Dieci DP 2.200
Hertz
About the Hertz DP 2.200
From our tech experts at CEN
A 2-channel amplifier from the Hertz Dieci line, rated at 220w RMS. Enough channels for a front and rear stage, or a front stage with the remaining channels bridged onto a sub.
Who it suits
Drivers who have upgraded their speakers and found the head unit cannot drive them properly. This is the step that makes good speakers sound like good speakers.
Our tech experts advise
Power figures mean little until the amplifier is matched to the speakers and the gains are set with a meter rather than by ear. It needs a fused feed from the battery on the correct cable gauge. Installation is priced per vehicle, so get in touch with your make, model and year and we will confirm what it needs. See car audio installation.
Explore the full Hertz range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Hertz
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Frequently Asked Questions
Q: How do I choose the right amplifier for my speakers or subwoofer?
A: Match the amplifier's RMS output per channel to the RMS handling of your speakers or subwoofer at the same impedance. The Specification tab lists the power figures. If in doubt, contact CEN with your setup and we will recommend a match.
Q: What wiring do I need to install this amplifier?
A: You will need an amplifier wiring kit sized to the amplifier's power draw, typically including power and earth cable, a fuse, RCA leads and a remote wire. CEN stocks complete wiring kits, and the amplifier's fuse rating is the guide to the cable gauge required.
Q: What class of amplifier is this and does it matter?
A: Class D amplifiers are compact and efficient, ideal for subwoofers and modern installs. Class AB designs are traditionally favoured for outright sound quality on mid and high frequencies. The class is listed in the Specification tab where provided.
Q: Will an amplifier work with my factory head unit?
A: Yes, in most cases. If your head unit has no RCA outputs you will need a line output converter to feed the amplifier a clean signal. CEN stocks line output converters and can advise the right one for your vehicle.
Q: Can CEN install this amplifier?
A: Yes. CEN offers professional amplifier installation from our Nottingham premises, including secure mounting, wiring and setup. Contact us to book.
Q: How many channels does the Hertz DP 2.200 have?
A: It is a 2-channel amplifier that can be bridged to a single channel. It delivers 2 x 80W RMS at 4 ohms, 2 x 110W RMS at 2 ohms, or 220W RMS bridged into 4 ohms (all at 1% THD).
Q: Can the DP 2.200 connect to a factory radio without RCA outputs?
A: Yes. It has speaker-level inputs that accept 1.6 to 40 Vrms, and Automatic Remote Turn-On/Off from the OEM radio's speaker outputs (BTL radios), so a separate line output converter is not normally needed.
Q: Is the Hertz DP 2.200 Hi-Res Audio certified?
A: Yes. It carries High-Resolution Audio certification with a bandwidth of 10 Hz to 45 kHz.
