The LD Systems HPA 4 is a 4-Channel headphone amplifier with a 4 Adjustable headphone outputs, 6.3 mm Stereo jack connectors, RCA L / R and 6.3 mm jack...
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| Name | Sonifex Redbox RB-DHD6 | Violectric HPA V220 black | Sonifex Redbox RB-HD6 | SPL Pro-Fi Phonitor e black | Rolls PS 16 | SPL Phonitor 2 Black + Exp. Rack | SPL Pro-Fi Phonitor e & 1670 | SPL Phonitor x + DAC768xs | Apogee Groove 30th Anniversary Gold | Lake People G111 Silver |
| Brand |  |  | |  |  | | | |  |  |
| Description | Headphone Distribution Amplifier | Headphone amplifier | Headphone Amplifier | 120 volt headphone amplifier | Personal Monitor Power Center | Headphone Amplifier | Headphone amplifier and DA converter | Preamp / Monitor Controller | USB 2.0 DAC and headphone amplifier | |
| Format | 19", 1U | - | - | - | - | 19" / 2 U | - | - | - | - |
| Number of stereo channels | 6 | 1 | 6 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Output Level Adjustment Per Channel | ||||||||||
| Amount Of Inputs | 1 | 3 | 6 | 3 | 4 | 3 | 3 | 3 | 1 | 2 |
| Rack format | ||||||||||
| RCA input | - | - | - | Unbalanced | - | - | Unbalanced | - | - | - |
| Mains voltage (switchable) | - | - | - | 230 V AC / 50 Hz or 115 V AC / 60 Hz | - | - | 230 V AC / 50 Hz or 115 V AC / 60 Hz | - | - | - |
| Power consumption | - | - | - | Max 30 VA | - | - | Max. 30 VA | Max 40 VA | - | - |
| Dimensions (W x H x D) | - | - | - | 278 x 57 x 335 mm (with foot and volume control) | - | - | 278 x 57 x 335 mm (incl. feet and volume) | - | - | - |
| Weight | - | - | - | 3.3 kg | - | 7.3 kg | 3.3 kg | 4.3 kg | - | - |
| Colour | - | - | - | Black | - | Black | Black | Black | - | - |
Any purchases made through our eBay or Amazon links may result in this site receiving a commission as an active participant in their affiliate programs.
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The LD Systems HPA 4 is a 4-Channel headphone amplifier with a 4 Adjustable headphone outputs, 6.3 mm Stereo jack connectors, RCA L / R and 6.3 mm jack input, Switchable mono stereo, Operates with external DC power supply & Incl. 24 V DC power supply. The retail price is 32.7 £. Buy LD Systems HPA 4 at Thomann UK.
| Max. output power | 4x 100 mW |
|---|---|
| Input impedance | 1 kOhm |
| Number of stereo channels | 4 |
| Output Level Adjustment Per Channel | Yes |
| Amount Of Inputs | 2 |
| Rack format | No |
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