Harley Benton Block-800B

Amp Head for Electric Bass

  • Power: 800W @ 4Ω
  • Class-D ICE power amplifier
  • 4-Band EQ
  • Smart Compressor
  • DI output with pre/post and lift/ground switches
  • High/Low switch for active/passive bass
  • Mute function
  • Tuner output
  • Line input with volume control
  • Headphone output
  • FX loop
  • Speaker Twist speaker connections - min. 4 Ωs
  • Dimensions 240 x 255 x 88 mm
  • Weight: 2.9 kg

Further information

Power 800 W
Equalizer 4-Band
Compressor Yes
Limiter No
Effects unit No
External effect loops Yes
Speaker Connector Speakon
Headphone Output Yes
DI Output Yes
Tuner Out Yes
Rack mount No
2 customer ratings:
  • 5
  • 4
  • 3
  • 2
  • 1
4.5 / 5.0
  • handling
  • features
  • sound
  • quality
2 written ratings
Total
features
sound
quality
handling

800W in a convenient box

Giga2, 17.05.2018
This head has the merit to bring a lot of power in a little and not expenive package. The preamp section is not exciting but does the job. I use the head mainly with an external preamp.
Pro:
- low price (a lot of value for the money)
- Fan not audible in home/studio usage

Cons:
- Low quality switches.
- Preamp section.
Helpful · Not helpful · Report review
Report rating…

Do you believe this rating to be inaccurate or unacceptable for some reason?

Send report
de Automatically translated (Show original)
deOriginal review (Show translation)
Unfortunately there was an error. Please try again later.
Total
features
sound
quality
handling

Compact powerhouse with a very good pre-stage, quality output stage and quiet fan, but overall high cut-off frequency

Dennis79, 15.04.2018
Compact powerhouse with very good pre-stage, quality final stage and quiet fan, but overall high Grenzfreqenz.

I use the amp in a jazz-rock project with a 2x12 "box and play a passive P-bass with DiMarzio pickups, because of the passive pickups I have been looking for an amplifier with a very high input impedance to get the most brilliant sound possible Amplifiers with the lowest possible weight have high power reserves.This is exactly what I have found with the block 800B with its 800Watt at 4Ohm and an input impedance of 1.5MOhm.

The performance is certainly more than sufficient even for louder projects and in direct comparison with a Markbass 250 (this has an input impedance of 500kOhm) sounds the precursor clearer and more brilliant. It is also positive that, despite the high sensitivity, I could not detect any disturbing background noises such as noise. The DiMarzio pickups in my passive bass provide a fairly high level which some precursors can not cope with. The pre-stage of the block 800B, however, can easily pass the bass peaks of my bass free of distortion. Compared to the Markbass 250 and Tech 21 amplifier, which I tested last, the controls and the housing design seem a bit simpler, but certainly worthy. For my use, the equalizer offers meaningful intervention options in a non-exaggerated control range. Even with Vollauschlag the signal does not overdrive. Unfortunately, I have not tested the compressor, I will add that. In my opinion, the overall sound of the Markass 250 is a bit better tuned. The print heads for Mute Pre / Post etc. also leave a less good impression. These have a lot of play in the front and give almost no noticeable pressure point. Since the function is still present, this does not bother me.
All in all, the advantages for me in the amplifier outweigh, so I'll recommend this further.

To technology and audio freaks:

The ventilation slots show that a high-end ICEpower power amplifier of type ICEpower700ASC has actually been installed. According to the manufacturer's data sheet, this module delivers 700 watts for 300s at 4 ohms and a permanent 270 watts at 4/8 ohms without additional cooling measures. The power rating of 800Watt is probably achieved by using the fan and an additional cooling plate on the module.
Here, Herley Benton has definitely built a powerful high-end Endtufenmodul, for which you can thankfully also get a complete data sheet with detailed performance information for free on the Internet. From the data sheet, the suspicion is confirmed that the clipping indicator detects only an overdrive of the power amplifier. This is very useful to protect the box, but can not be used to level the pre-stage. Since I consider the display for the power amp to be quite reasonable, I would like to have an additional LED for the pre-amp.

Below I have examined the amplifier with the help of the free measurement software REW regarding the frequency response in more detail.
With the software REW can be created with the PC via an audio interface on the preamplifier and / or power amplifier of the amplifier for the entire audio frequency range known in terms of amplitude and frequency sine wave. If one measures now at the output of the amplifier (attention: at the output of Endtufen always an isolating transformer or mass filter and if necessary voltage divider measure!), One can determine the transmission behavior of the amplifier over the entire audio frequency range (20-20kHz). In this measurement, I noticed that the amplifier has a fairly high cutoff frequency of 45Hz -3dB. This means that the output signal at 45Hz is already attenuated by -3dB. 45 Hz corresponds to the frequency of the tone F # on the E string. At 30Hz, the gain is already reduced by -6dB, so the volume is reduced to half. Bassists with a H string (the fundamental frequency of the H string is 30.9 Hz) should notice this very well. In order to amplify the E-string and H-string unattenuated, a bass amplifier should have at least a lower limit frequency of 20Hz.
The lower limit frequency of the ICEpower power amplifier is according to the data sheet at 1.5Hz, so I assume that the reason for the high cutoff frequency in the preliminary stage is to be sought.
If the amplifier and the block 800B have sufficient power reserves, the lowering of the bass frequencies can be compensated with an equalizer.

+ very low-level preamplifier with high-impedance input (1.5MOhm)
+ very compact and lightweight
+ serial effects path
+ very quiet controlled fan, which is hardly audible without load or is completely switched off
+ Mute switch
+ very powerful and clear sound
+ two Speakon combi jacks
+ Through the ventilation slots it can be seen that it is in an ICE700 power amplifier, which is specified according to the data sheet only with 700Watt to 4Ohm. How the performance of 800 watts comes here, I can not understand.
+ detailed data sheet for power amplifier module ICEpower 700ASC available on the Internet

- The clipping display detects only an overdrive of the output stage and can not be used to level the pre-amp
-high limit frequency of the power amplifier at 45Hz (-3dB)
- The printheads for mute pre / post etc. have a lot of play in the front and give almost no noticeable pressure point.
Helpful · Not helpful · Report review
Report rating…

Do you believe this rating to be inaccurate or unacceptable for some reason?

Send report
394 €
Free shipping incl. VAT
Available immediately
Available immediately

This item is in stock and can be dispatched immediately.

Standard Delivery Times
Share this product
Your Contacts
Phone: +49-9546-9223-20
FAX: +49-9546-9223-24
free download
Download
 
 
 
 
 
test results:
Offers include 24% Greek VAT and are valid as long as stocks last. Shipping costs to Greece are 20 EUR, free shipping on orders above 298 EUR. Please click here for international Shipping rates. We do not accept liability for typographical errors or inaccurate information of any kind. *RRP = manufacturer's / distributor's recommended retail price in Germany
Electro Harmonix Oceans 11 Reverb Gibson Les Paul M2 Citron Green Dante AVIO Analog Input Adapter 2x0 C.Giant LP-6210C Black Vic Firth SIH2 Steinberg UR-RT2 Presonus Studio One 4 Pro UG Prof/Prod Stairville Wild Wash Pro 648 LED RGB DMX Roland TM-6 Pro Drum Trigger Module Dante AVIO AES3 IO Adapter 2x2 Fender SQ J.Mascis Jazzmaster 2018 Ampeg Opto Comp Compressor
Recommended
Electro Harmonix Oceans 11 Reverb

Electro Harmonix Oceans 11 Reverb, effects pedal, 11 different reverb types: HALL, SPRING, PLATE, REVRS, ECHO, TREM, MOD, DYNA, AUTO-INF, SHIM and POLY, Tails switch: Select whether the reverb fades out naturally or stops immediately when the pedal is switched...

to the product
149 €
Recommended
Gibson Les Paul M2 Citron Green

Electric Guitar Poplar body, Maple neck, Rosewood fretboard (Dalbergia latifolia), Slim Taper neck profile - .800"-. 875", 22 Frets, Pickups: 2 Gibson Pro-Bucker humbuckers, Volume and tone controls, 1 Toggle switch, Chrome hardware, Wraparound bridge, Mini Button machine heads,...

to the product
399 €
Recommended
Dante AVIO Analog Input Adapter 2x0

Dante AVIO Analog Input Adapter 2x0; converts analog audio line signals to feed any Dante-connected system; 96 kHz / 24 Bit; fully-functional Dante interface; adjustable signal levels: +24dBu / +4dBu / 0dBu/ 0dBV /-10dBV (through Dante Controller); frequency Response: 20Hz...

to the product
169 €
Recommended
C.Giant LP-6210C Black

Keyboard 61 Keys with touch dynamics, 162 Sounds, 200 Rhythms, 61 Percussion effects, 50 Demo songs, Fill-in, sync and rhythms variations, Split function, Chord, Recording, Pitch bend wheel, Microphone input, Line out sockets, Headphone output, Sustain pedal connection, USB...

to the product
69 €
(2)
Recommended
Vic Firth SIH2

Vic Firth SIH2 isolation headphones, (reduces overall noise levels by 25 dB). successor of the legendary Vic Firth SIH-1 headphones, features redesigned larger driver in the ear cups that deliver a more powerful low end, cleaner mids and clear highs...

to the product
77 €
(1)
Recommended
Steinberg UR-RT2

4x 2 USB 2.0 Audio Interface Up to 24-bit/192 kHz, 2 Class-A D-PRE microphone preamps with + 48 V phantom power, Rupert Neve Designs transformer switchable on each front input channel, 2 Analog XLR/jack combo inputs plus 2 line...

to the product
325 €
Recommended
Presonus Studio One 4 Pro UG Prof/Prod

Audio MIDI Sequencer (DAW) (download) Upgrade from Presonus Studio One Professional 1-3 / Producer 2 to Studio One 4 Professional Sleek single-window philosophy, Consistent drag-and-drop functionality throughout, Project page allows integrated mastering with DDP export, Redbook...

to the product
146 €
Recommended
Stairville Wild Wash Pro 648 LED RGB DMX

Multi-Functional LED Spotlight with 4 Effects in One DeviceWith its SMD LED equipment, the Wild Wash series is a magic box for events and shows of all kinds. Whether on small to large stages, in clubs of all sizes, exhibitions,...

to the product
259 €
(1)
Recommended
Roland TM-6 Pro Drum Trigger Module

Trigger Module For acoustic drummers who want to extend the sound possibilities of their drums with electronic sounds, 500 one-shot sounds, 268 V-Drum sounds, 80 Drum kits, SDHC card slot for importing your own samples, 6x 6.3 mm stereo...

to the product
799 €
Recommended
Dante AVIO AES3 IO Adapter 2x2

Y Adapter Transmits two channels each from AES3 to a Dante network and vice versa, RJ45 Metal plug with built-in LEDs, 1 XLR male output, 1 XLR female input, 96 kHz / 24 bit, Robust housing for day-to-day tasks...

to the product
169 €
Recommended
Fender SQ J.Mascis Jazzmaster 2018

Electric Guitar J.Mascis (Dinosaur Jr.) Artist Model, Body: Basswood, Neck: Maple, Fretboard: Indian Laurel, Neck profile: C, 21 Jumbo frets, Nut width: 42.5 mm, Scale: 648 mm, Pickups: 2 Jazzmaster single coils, Adjusto-Matic bridge with vintage style floating tremolo,...

to the product
479 €
Recommended
Ampeg Opto Comp Compressor

Effects pedal Analog bass compressor, Controllers for compression, release and output levels, True bypass, Power supply with 9 V battery or 9 V power supply (both not included, suitable battery available under Art. 132579 , suitable power supply under...

to the product
103 €
Feedback Found an error or want to give us feedback about this page?

We're looking forward to hearing from you and aim to solve any problems as soon as we can.

Please leave a comment. Please enter your e-mail address.