Robson HA1
Years of research into a dedicated headphone amplifier which can drive the most difficult of loads with ease has culminated into a design based around the most dynamic amplifier modules in their class.
A dual mono design throughout using N-core technology and fully balanced with our own pre-amp internal buffer stage and a 4 pole Swiss Alps volume control.
Internal wiring uses Duelund Coherent Audio copper and cotton in oil wire for input signal path and Harmonic Technology UP-OCC wire for output signal path.
The HA1 headphone amplifier has been primarily designed to perfectly match the incredible HiFiMan Susvara and HE100se headphones along with matching headphone cables specifically deigned for each headphone and available as a package deal.
HA1 features
- N-core technology, dual mono design
- Specific high quality internal wiring
- Fully balanced with switchable un-balanced
- 4 pole balanced Alps volume control
- Same form factor as the MV3, SA1 and MC1 amplifiers
Please enquire about Burr hardwood front panel options.
PRICE - HA1 - £1800.00
PRICE - HA1 + HiFiMan Susvara + 3m cable - £5500.00
PRICE - HA1 + HiFiMan HE1000se + 3m cable - £3800.00
Specification
| Output power | 4W RMS into 30 ohms ohms
2.5W RMS into 60 ohms |
| Class of operation | Class D |
| Minimum load | 4 ohms |
| Frequency response and Distortion | 10Hz to 50kHz @ 0.0015% |
| Signal to noise ratio | 121dB |
| Output impedance | 1.5 mohms |
| Peak output current | 12 amperes |
| Damping factor | >1000 |
| CMRR | 71dB |
| Power consumption | 350W |
| Input voltage | 240V/50Hz |
| Output connectors | Silver plated 4 pin XLR or 6.3mm jack |
| Input connectors | True Balanced XLR or unbalanced RCA |
| Input impedance | 47Kohms |
| Size | 240W x 320D x 115H (mm) |
| Weight | 5Kg |
