Preamplifiers — TEAC HA-507
Description, images, technical data and specifications
TEAC HA-507
Image source — © TEAC
The TEAC HA-507 model is made as a fully balanced scheme with a “dual mono” configuration and is capable of providing an output power of up to 6.7 Wt per channel when driving headphones with a nominal impedance of 32 ohms with a balanced connection, which makes it suitable for working with a wide range of headphones.
TEAC HA-507 is equipped with both balanced (XLR and 4.4 mm) and unbalanced (6.3 mm and 3.5 mm) outputs for connecting headphones, and also offers a signal pass-through function. The model is equipped with a new TEAC-QVCS volume control, which uses a high-precision ladder-type resistive matrix for step gain adjustment in 0.25 dB. The preamplifier section also uses TEAC-HCLD 2 amplification technology.
TEAC HA-507 is equipped with both balanced (XLR and 4.4 mm) and unbalanced (6.3 mm and 3.5 mm) outputs for connecting headphones, and also offers a signal pass-through function. The model is equipped with a new TEAC-QVCS volume control, which uses a high-precision ladder-type resistive matrix for step gain adjustment in 0.25 dB. The preamplifier section also uses TEAC-HCLD 2 amplification technology.
Specifications
Model name
HA-507
Analog inputs (balanced)
2
Analog inputs (single-ended)
2
Analog outputs (balanced)
1
Analog outputs (single-ended)
1
Gain (dBu)
N/A
Input sensitivity (mV)
N/A
Output voltage (V)
3 - 7
Input impedance (balanced) (Ω)
20 - 40
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Maximum output level (balanced) (dBu)
N/A
Maximum output level (single-ended) (dBu)
N/A
Volume control range (dBu)
N/A
Frequency response low +/- 3dB (Hz)
10
Frequency response high +/- 3dB (Hz)
150000
Signal to Noise Ratio (SNR, unweighted) (dB)
110
Total Harmonic Distortion + Noise (THD+N) (%)
0.0006
Dimensions (mm)
290 × 84.5 × 243.9
Weight (kg)
4.6
Official link
