Previo válvulas ucraniano

Vendo previo de válvulas ucraniano. Dispongo de factura original y está revisado desde principio del 2019 .
Preferiblemente Madrid.

Saludos


FEATURES & SPECIFICATIONS:

Microphone, Guitar Input level, balanced/unbalanced: fr.7,75mv/-40dBu, fr.12mv/-36dBu
Line Input level, balanced/unbalanced: 250mv/-10dBu max.
Output level, balanced: 775mv/0 dBu 4,9V/+16dBu max.
Gain, typ/order: 40dB/60dB 
Noise Mic Input: -82dB
Noise Line Input: -84dB
Mic/Line Input Impendance: 600 ohms
Guitar Input Impendance: 1 Moms
Output Impendace: 600 ohms
Frequency response (+/-0,5dB): 20Hz-20Khz
THD+N (1Khz&+6dBm): less than 1,0%,0,5% typ.
Power: (230-240V or 110V, 50-60Hz), 15/30WA 
Dimensions (WxHxD): 19″x3,5″x12″ (occupies 2U)
Weight: 6,5 kg/14,33 lbs.
The Affinity a2 is a classic valve microphone/instrument preamplifier. Very straightforward: two channels, each offering a 10-step attenuator switch for the Input Gain, low-cut filter (80Hz), +48V Phantom Power and Master Level output. The unit looks really sober, which is encouraging (no flickering LEDs around to mesmerize the user…)

Together with the controls, the front panel offers a 1/4 TRS Hi-Z instrument Input; rather interestingly, it can be used simultaneously with and independently of the Mic/Line Low-Z input as an active mixer, as it uses a separate tube cascade. Two old-style back-lit input level VU-meters sit proudly at the right end of the front panel, together with the power switch.

The VU-meters measure the input signal level, i.e. the level up to the Master Level pot. The rear panel houses 2 balanced Mic XLR inputs, 2 balanced XLR outputs (or dual outputs), “+4dBu/-10dBv” selector to switch between pro/consumer output levels (1/4 TRS symmetrical outputs next to XLR are optional), “Ground/ Lift” switch, IEC power socket/ fuse.

WEB:
http://papa-movie.com/html/preamp.html
REVIEWS

AUDIOFANZINE: https://en.audiofanzine.com/tube-preamp/hand-crafted-lab/Affinity-2/user_reviews/
LIGHT SOUND JORNAL: https://www.lightsoundjournal.com/2006/08/24/hand-crafted-labs-affinity-a2/