CA1 Control vs Simaudio 250i
The 250i's power @ 8ω is 50W against the CA1 Control's 55W and its power @ 4ω 100W against 85W. Both share mm gain (40 dB) and class (AB).
AI-generated product photo — not official manufacturer imagery.
AmplifiersIntegrated AmplifiersPhono Pre-AmpsHeadphone Amplifiers
Estimated price (community-sourced)
About the CA1 Control
The Audio by Van Alstine CA1 Control Amplifier is an all-analog integrated control amplifier using the company’s Advanced Nested Architecture (ANA). It combines a line-level preamplifier, moving-magnet phono stage, power amplifier, and headphone amplifier in one chassis. The amplifier provides three line-level stereo inputs plus one MM phono input, remote power/volume/mute control, a 12V trigger output, a 1/4-inch headphone jack, and heavy-duty 5-way speaker binding posts. It uses a linear power supply with a high-capacity toroidal transformer and is designed for nominal 4-ohm speaker loads and higher. The manufacturer’s product page and catalog listings indicate that the CA1 Control remains an active product rather than a discontinued model.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 55W @ 8Ω
- Power @ 4Ω
- 85W @ 4Ω
- Amplifier Class
- AB
- Minimum Impedance
- 4Ω
- Input Impedance
- 47000Ω
Phono Preamplifier
Phono stage specifications
- MM Gain
- 40 dB
- Adjustable Loading
- No
- Adjustable Capacitance
- No
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- RCA
- Analog Outputs
- RCA, 1/4-inch headphone output
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 431.8 × 88.9 × 304.8 mm (W × H × D)
- Weight
- 9.07 kg (20 lbs)
Never published
- Analog Output — the maker never published this. Checked 30 sources on 6 Sept 2026
Key Specifications
Power: 55W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions