The hi-fi system you already love
Keep your speakers' own crossovers and use two outputs. Room correction, tone and EQ go in front of the amplifiers you already own.
Made in Richmond, VA · First shown at Capital Audiofest 2026
AC1200 DSP Preamp
Essential DSP and Preamplifier.
- Designed for hi-fi
- Stereo up to 10 analog outputs
- XLR and RCA on every output
- AES digital out
- ESS Sabre DACs
- Rollable op-amps
- Wi-Fi control
The AC1200 is a DSP preamp for hi-fi. It sits between your sources and the amplifiers you already own, and from the AirDSP app it corrects the room, sets the tone and tunes your speakers.
Use it with your existing hi-fi, or build a fully active system. Ten outputs, each on XLR and RCA, give every driver its own channel, with room for multiple subwoofers. All fully programmable, with dual DSP.
Reviewed
Measured in Hifi-Selbstbau, English and German
The AC650 review. The AC1200 runs the same platform and the same app.
Room EQ Wizard
A supported equalizer in REW, built with REW's author
Measure, generate filters, send them straight to the amp.
Who it is for
Deeper into hi-fi, not out of it
Bypassing the passive crossover gives every driver its own amplifier and its own DSP channel, for full control of your speakers. Ten outputs run a two-way pair with up to six subs, a three-way pair with four, or a four-way pair with two.
Hi-fi shops and acousticians
Set up and measure a system for a client, the way an acoustician would. Coming soon: choose what the owner sees in the app, so day-to-day control stays simple.
AirDSP app
An acoustician, built in.
Room correction. Measure in REW and bring the filters into AirDSP.
Tone. Bass, mid and treble, on the front panel or in the app.
Voicing. Tube Machine is coming soon.
Speaker tuning. Active crossovers, parametric EQ, delay and FIR filters.
Control. Any phone, tablet or computer on your Wi-Fi. The same app runs the AC650 and the AC6150.
See it in person. Capital Audiofest, Hilton Rockville, Maryland, November 13 to 15. Booths 30 and 31.
Where it stands
We update this when reality changes, and send one email per change.
- SpecificationLocked, May 2026
- PrototypesBuilt, shown Nov 2026
- Pre-ordersOpens November 24 Open
- First run of 25Ships first
- ShippingFrom Q1 2027
FCC: The AC1200 has not yet been authorized as required by the rules of the Federal Communications Commission. Pre-orders are conditional sales. Units will not be delivered until authorization is obtained.
Patent pending.
Specifications
Final figures come from the production test report.
- Outputs
10 analog, each on XLR and RCA · AES digital (2 channels)
- Inputs
XLR, RCA, optical ×2, coaxial, AES/EBU, USB, I²S over HDMI (PS Audio standard)
- USB audio
2 channels
- Conversion
ESS Sabre DACs and ADCs
- Analog stage
Rollable op-amps on every analog output
- Processing
Dual DSP · room correction · active crossovers · parametric EQ · delay · FIR
- FIR
3,200 taps per channel on all ten analog outputs, at 48 kHz
- Front panel
Source selector, bass, mid, treble, lit volume ring, walnut face
- Control
AirDSP app over Wi-Fi · iOS, Android, Mac, Windows · no remote needed
- Connections
12 V trigger in and out
- Power
External power supply, included
- Measurements
Coming soon
- Dimensions · weight
438 × 183 × 73 mm (17.2 × 7.2 × 2.9 in), width × depth × height · weight to be confirmed
Questions
When will mine ship?
First units ship from Q1 2027. The first 25 ship first. Your confirmation says which run you are in, and we email you before the window passes if it moves.
Can I use my own amplifiers?
That is the whole product. The AC1200 has no power stage. It sits in front of the amps you already own.
Do I have to bypass my speakers' crossovers?
No. Most hi-fi systems use two outputs and keep the speakers' own crossovers. Going active is there when you want it.
Why not a miniDSP?
Network control with no cables, the FIR Vault, and full remote control from any device, in one box with real hi-fi controls on the front.
Inside are real preamp parts: ESS Sabre DACs, Neutrik XLRs and rollable op-amps on every analog output. Bass and room control, speaker correction and active crossovers are built in, and AirDSP already works hand in hand with REW.
Coming soon: a full measurement suite, automatic and manual; voicing with Tube Machine, previewed at Capital Audiofest; user accounts, so a dealer or acoustician can tune your system and simplify the app to the controls you use; and MCP integration.
I live outside the US
We ship worldwide. Outside the US you are the importer, so duties, VAT and local compliance are yours.
Have a question we did not answer?
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