Description
PREOWNED – FULLY TESTED – PRICE PER AMP IN SILVER – INCLUDES ORIGINAL BOX/PACKING, MANUAL, POWER CABLE
What if we made a Class A version of the Vidar? No, wait,
strike that. What if we made a better-than-Class-A-in-many-respects version of
the Vidar? Well, here you go. Meet Aegir.
Continuity™: Benefits Beyond Class A
Aegir is our first Continuity speaker amplifier, extending a
technology we introduced with the Lyr 3 headphone amp. Technically, Continuity
is a way to eliminate transconductance droop outside of the Class A bias
region, and extend the benefits of Class A biasing. It also solves the NPN and
PNP device mismatch problem, since it uses both NPN and PNP devices on both
rails. It’s still a very hot-running amp, though, with over 10W of Class A
standing bias.
A True No-Excuses Design
Like Vidar, Aegir uses an exotic current-feedback topology,
as well as a 100% linear power supply (with 7 separate voltage rails and 600VA
transformer) and microprocessor oversight to eliminate capacitors and DC servos
in the signal path. No Class D, no switching supplies, no fans, no compromises,
nothing in the signal path but music—for a three-figure price tag.
Power That Scales
Aegir provides 20W into 8 ohms, doubling to 40W into 4 ohms.
Run mono, and you’ll see 80W into 8 ohms. Best of all, Continuity ensures you
see Class-A-like performance at all these power outputs.
Convenient Standby Mode
On Aegir, we’ve added a front-panel button to put the amp
into Standby mode. This de-biases the output stage completely and reduces
standing power consumption significantly. This keeps the rest of the amp up and
running, without massive heat output.
Designed and Built in California
By “designed and built in California” this is what we
mean: the vast majority of the total production cost of Aegir—chassis, boards,
transformers, assembly, etc—goes to US companies manufacturing in the US. Our
chassis are made minutes from our facility. Our PCBs are done just over the
hill from us, or done in NorCal. Our transformers are also made in California.
You get the picture.
Power Output:
Stereo, 8 Ohms: 20W RMS per channel
Stereo, 4 Ohms: 40W RMS per channel
Mono, 8 ohms: 80W RMS
Frequency Response: 20Hz-20Khz, -0.1db, 3Hz-500KHz,
-3dB
THD: <0.01%, 20Hz-20KHz, at 20W RMS into 8
ohms
IMD: <0.01%, CCIR, at 20W RMS into 8 ohms
SNR: >112db, A-weighted, referenced to full
output
Damping Factor: >100 into 8 ohms, 20-20kHz
Gain: 12 (22dB)
Input Sensitivity: AKA Rated Output (Vrms)/Rated Gain.
Or, 14.3/12. You do the math.
Input Impedance: 22k ohms SE, 44k ohms balanced
Crosstalk: >95dB, 20-20kHz
Inputs: L/R RCA jacks for stereo input, single XLR for
mono input
Topology: Fully complementary, all-BJT, current
feedback, no coupling capacitors or DC servos with Continuity™ constant
transconductance output stage
Oversight: microprocessor-controlled monitoring and
management of critical operational points, including DC offset, with standby
mode and relay shut-down for overcurrent, thermal, and other faults
Power Supply: 600VA transformer with dual mono main
rails, plus boosted, regulated supply to input, voltage gain and driver stages,
plus separate, isolated and regulated rails for microprocessor
management.
Power Consumption: 450W maximum
Size: 9” x 13” x 3.875”
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