Vera Audio P400/1000
Powerful amplifier with super low distortion with great features in a sleek chassis. Black or silver finish.
Price:
28 000 NOK ex VAT (outside Norway)
35 000 NOK incl. VAT (Norway)
The amount in NOK to your local currency can be googled.
Product info
- Based on Ncore NC500 modules. Compatible with 230V and 120V.
- Stable to 2 Ohm (with less power)
- Powerful PSU of 3kW
- 400W at 8 ohms (2 channels)
- Bridging option with more than 1000W (closer to 1500W) at 8 ohms (1 channel)
- Super low distortion (see datasheet)
- Vera Audio input stage (buffer) with only the very best measurable parts
- No degrading potentiometers in the signal chain. A gain adjustment with 8-step rotary switches with gold contacts
- 0.004% precision resistor which helps to provide a CMRR (common mode rejection ratio) of at least 94dB at 1kHz
- Multi-step EMI filtering in the input stage to effectively keep harmful radio waves away from the audio circuit. In addition, the entire input stage is mounted inside a screen in a separate chamber inside the cabinet. There are also extra shielded Neutrik XLR connectors
- Very low noise and high CMRR making it even a perfect combination with horns or other high sensitive speakers
- Gain adjustment within 0.02 dB on both channels making it easy to match with different preamps/DACs or to incorporate to active speakers with amps to each driver
- Trigger input with LED light indicator
- Brushed aluminium chassis cut out from one block without any seams or visible screws
- High build quality and temperature controlled fans that kick in at high temperatures with very low audible noise to ensure long life span
- Speaker terminals that accept up to 6mm² stranded wire, spades and banana plugs
See datasheet under downloads for measurements.
Some key performance data:
- Selectable gain in very accurate 3dB steps from 12dB to 30dB as well as mute function
- CMRR of at least 89dB@100Hz and better than 89dB@1kHz (measured based on the IEC 60268-3 standard)
- Very low noise of less than 15uV
- S/N of more than 130dB (stereo)
- S/N of more than 132dB (bridged)
Technical data is measured with 240V current on 10 random units. Minimum values are stated.
- Output impedance (20–20kHz): < 5mΩ
- Input impedance: 47kΩ
- Noise: < 15uV
- Frequency response DC–20kHz: +0 to -0.5dB
- Signal-to-Noise Ratio stereo: > 130dB
- Signal-to-Noise Ratio bridged: > 132dB
- Damping factor: > 1600 with 8Ω speakers
- Standby power: 0.25W
Continuous power:
Stereo, both channels driven at 8 ohms:
– 400W with maximum 1% THD+N
– 330W with maximum 0.01% THD+N
– 300W with maximum 0.004% THD+N
Stereo, both channels driven at 4 ohms:
– 750W with maximum 1% THD+N
– 620W with maximum 0.01% THD+N
– 550W with maximum 0.004% THD+N
Bridged, driven at 8 ohms:
– 1500W with maximum 1% THD+N
– 1100W with maximum 0.01% THD+N
– 800W with maximum 0.004% THD+N
Dimensions and weight:
Width: 29 cm
Depth (including terminals): 38 cm
Height: 8.2 cm
Weight: 9 kg
1. What output impedance of the source (pre amplifier or DAC) matches the Vera Audio P400/1000?
The input stage of the Vera Audio P400/1000 is very easy to drive with an input impedance of 47kΩ. Everything with output impedance below 2kΩ will work well. If the output impedance of the source is higher than 2kΩ, there will be a roll off in the frequency response at 20kHz.
2. My source only has RCA outputs. What RCA to XLR cables should I use?
The RCA to male-XLR cable should be made according to this:
Unfortunately, many sellers of cables do not understand this, so it is important that you check this yourself and ask the cable manufacturer if you are uncertain. This cable uses the standard pinout with pins 1 and 3 of the XLR connector wired to the shield of the RCA plug and pin 2 of the XLR connector wired to the tip of the RCA plug.
3. What does the gain setting do and what is the optimal gain setting?
The gain setting is used to optimize the noise level, adjust to the output voltage of the sources, or used in an active speaker system to match the level between drivers/speakers. The gain setting does not affect maximum power. However, lower gain setting requires higher input voltage from the source to play equally loud. The industry standard of 27dB gain is too much in many systems. The result may be that noise from the sources are amplified too much, causing hiss in the speakers. Lowering the gain on the power amplifier will always result in less hiss in the speakers and lower the noise floor. With today's distortion free high output from many sources a gain setting of 18dB or 21dB is often a much better option.
The 12dB or 15dB option is for customers that have very sensitive speakers. To reach full power in the 12dB setting a 13V input signal is required.
In bridged mode the gain is 6dB more than indicated on the switches. So if both are set to 15dB, the effective gain will be 21dB. They can be set to different gain settings as well, so that if one is 15dB and the other is 18dB the bridged gain will be 22.5dB.
4. Can the gain control be used while the amplifier is operating?
Yes, it is completely safe to use the gain switch simultaneously when the amplifier is passing through a signal.