АС и ламповый усилитель

У вас же есть три отправные точки - послушайте их, может остальное и не понадобится.

Audio Research VT60 Specifications:


POWER OUTPUT: 50 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 1% at 50 watts, below .05% at 1 watt.
Approximate actual power available at "clipping" 52 watts (1kHz). (Note that actual power output is dependent upon both line voltage and "condition" i.e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.)

POWER BANDWIDTH: (-3dB points) 15Hz to 40kHz.

FREQUENCY RESPONSE: (-3dB points at 1 watt) 3Hz to 40 kHz.

INPUT SENSITIVITY: 1.05V RMS for rated output.
 INPUT IMPEDANCE: 100K ohms unbalanced.

OUTPUT REGULATION: Approximately 0.6dB 16 ohm load to open circuit (Damping factor approximately 14).

OVERALL NEGATIVE FEEDBACK: 19dB.

SLEW RATE: 7 volts/microsecond.

RISE TIME: 10 microseconds.

HUM & NOISE: Less than 0.5mV RMS - 95dB below rated output (IHF weighted, input shorted).

POWER SUPPLY ENERGY STORAGE: Approximately 184 joules.
 POWER REQUIREMENTS: 105-125VAC 60Hz (210-250VAC 50Hz) 265 watts at rated output, 300 watts maximum, 175 watts at "idle".
TUBES REQUIRED: 2 - Matched pair 6550B - Power Output; 2 - 6922 Driver; 1 - 6922 input.

DIMENSIONS (VT60): 14" (35.6 cm) W x 7" (17.8 cm) H x 13.3" (33.8 cm) D. Output connectors extend 1" (2.5 cm) to the rear.

WEIGHT (VT60): 33 lbs. (15.0 kg) Net; 47 lbs. (21.4 kg) Shipping.

Вот этот и есть мой усилитель.

А как по англиский к-т демпфирования?

Так какие параметры надо следить в технической характеристике акустики?
Могут ли подойти такие голонки?
Description
2.5 way floor standing loudspeaker

Enclosure type Spendor 3D linear flow reflex
Drive Units HF
27mm coated fabric dome, damped vented enclosure

Drive Units LF/MF
210mm ep38 polymer cone

Drive Units LF
-

Frequency response
40Hz-20kHz ± 3dB on reference axis

Frequency range
-6dB at 32Hz

Dispersion
Within 3dB of response on reference axis

Horizontal: over 40° arc ( -20°)
Vertical: over 20° arc ( -10°)
Sensitivity for 1w @ 1m
89dB

Impedance nominal 8 ohms
Impedance minimum 5.0 ohms
Crossover frequency 4.0 kHz
Power handling 15 - 300W into 8 ohms unclipped
Harmonic distortion <1% 100Hz-20KHz 90 dB @ 1m
Connections
2/3 way gold plated bi-wirable terminals

Magnetic shielding All drive units shielded
Dimensions (H x W x D)
925 x 226 x 320 mm (36.4 x 8.9 x 12.6 in)

Plinth maximum W x D 316 x 340  mm (12.4 x 13.4 in)
Spikes/feet/stand height 37 +- 3 mm
Net weight 25.0 kg (55.1 lb)
Shipping weight 28.0 kg (61.7 lb )
Accessories supplied Spikes and locks nuts
Cabinet real wood veneer finishes Cherry, Maple, Rosenut, Black ash