LD Systems HPA 4

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4-Channel headphone amplifier

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-DHD6Violectric HPA V220 blackSonifex Redbox RB-HD6SPL Pro-Fi Phonitor e blackRolls PS 16SPL Phonitor 2 Black + Exp. RackSPL Pro-Fi Phonitor e & 1670SPL Phonitor x + DAC768xsApogee Groove 30th Anniversary GoldLake People G111 Silver
Description Headphone Distribution AmplifierHeadphone amplifierHeadphone Amplifier120 volt headphone amplifierPersonal Monitor Power CenterHeadphone AmplifierHeadphone amplifier and DA converterPreamp / Monitor ControllerUSB 2.0 DAC and headphone amplifier
Format19", 1U----19" / 2 U----
Number of stereo channels6161111111
Output Level Adjustment Per Channel
Amount Of Inputs1363433312
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 VAMax 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 kg3.3 kg4.3 kg--

Buy LD Systems HPA 4 on Ebay

LD Systems HPA 1 Headphone and Wired In Ear Monitoring IEM Amplifier
  • The compact device iin a rugged, ergonomically shaped plastic housing with soft-touch surface and practical belt clip is very extensively equipped. The LD Systems HPA 1 has bi-colour LEDs to facilitate the features overview, which displays the response of the limiter during peaks and the battery status.
  • Item location: NOTTINGHAM, GB
LD Systems HPA 1 - Amplifier for headphones and wired IEM
  • Click here to see description.
  • Item location: GRANTHAM, GB
LD Systems HPA4 Headphone Amplifier 4-Channel
  • A compact and powerful headphone amplifier. © Knight Sound and Light. Pick up procedure is as follows Magma CTRL Case L. Bandridge 2x Phono (Male) to 2x Phono (Male) 5.0m. You might also like.
  • Item location: , GB
LD Systems HPA6 19
  • LD Systems HPA6 19" Headphone Amplifier 6-Channel The LD Systems HPA 6 is a highly flexible 1U 19“ rack format headphone amplifier with 6 fully independent channels and comprehensive features for a wide range of professional audio monitoring applications.
  • Item location: , GB
1993 Press Photo Andy DiRaddo and Rob McKinley, Owners of LD Systems - hpa90087
  • This is an original press photo. Cynthia Woods Mitchell Pavilion - L to R: Andy DiRaddo and Rob McKinley owners of LD Systems, a firm that specializes in custom lighting and sound. Photo is dated 10-20-1993.
  • Item location: Memphis, US

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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 34.7 £. Buy LD Systems HPA 4 at Thomann UK.


Max. output power4x 100 mW
Input impedance1 kOhm
Number of stereo channels4
Output Level Adjustment Per ChannelYes
Amount Of Inputs2
Rack formatNo

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