Audio Valve Sunilda Brochure

Technical Specifications:

Sunilda

Sundila is a three stage phono-preamplifier, based on 6922 (ECC88) and 12AX7 (ECC83) frame grid tubes,

suitable for MM- and MC-cartridges. Independently for the two phono inputs, impedance and capacitive
load can be set separately and 'on-the -fly' while listening.

Thus the user can easily configure the unit to match the features of the cartridge by selecting the optimal
input resistance and capacitance for each input separately! Switches are found for: MM/MC mode for each
input; input 1 or 2; selectors are used to select different R and C loads.

In MM mode the gain will be 20 dB lower than MC and at a fixed input-impedance of 47K.

In MC mode the preamp will have higher gain and switchable input resistors and condensers. The RIAA de­emphasis is passive and split between the first and second stage. Dividing the RIAA network over two
amplification stages lowers the insertion losses of the passive network dramatically .

Furthermore, the design holds a total absence of feedback, thus increasing the overall dynamics.

Power supplies are solid state regulated. This is the best way to obtain a low noise and supply line with a
very low impedance that will increase the performance in the lower frequency range.

The power transformer is housed in a separate aluminum case. Sunilda comes in an lasercut, 4 mm thick
steel, chassis in black or silver finish and has a case similar to the Eklipse line amplifier.

MM mode gain: 40dB - 1Khz
MC mode gain: 60 dB - 1Khz
MM / MC mode input impedance:
resistors: 47 R, 100 R, 220 R, 470 R, 1 K, 47 K
capacitors: 0 p, 100 p, 220 p, 470p
Frequency Response: 20Hz to 65 KHz +/- 3 dB
Subsonic filter roll-off: 20 Hz
Max output amplitude: 14V pk
Max input amplitude: 200 mV
RIAA accuracy: +/- 0,25dB
Distortion: 0,24 % (1Khz - 10Vpk out)
Noise: 76 dB below signal (MC mode)
Circuit type: 3 stages single ended, buffered ouputs
RIAA network passive - split between 1st and 2nd stage
Resistors: 1 % metal film
Capacitors: MKP - styroflex - fast electrolytic
Tubes: 2 x 6922, 2 x 12ax7
more mode functions: Stand - by and mute
Power supplies: Solid state regulated
Power transformer: outside in a separate case
Power requirements: 115/230 - 245 Ac - 50/60Hz
Powerconsumption: Watts: 60 VA
Dimensions: cm, W x H x D :42 * 32 * 14 (same as Eklipse)

Weight: Kg: 20 kg